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Fortinet

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FY2009 Annual Report · Fortinet
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K

(Mark One)
È ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE

ACT OF 1934

‘ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES

EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2009
Or

For the transition period from

to

Commission file number: 001-34511

FORTINET, INC.

(Exact name of registrant as specified in its charter)

Delaware
(State or other jurisdiction of
incorporation or organization)

1090 Kifer Road
Sunnyvale, California
(Address of principal executive offices)

77-0560389
(I.R.S. Employer
Identification No.)

94086
(Zip Code)

(408) 235-7700
(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Common Stock, $0.001 Par Value
(Title of each class)

The NASDAQ Global Select Market
(Name of exchange on which registered)

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities

Act. Yes ‘ No È

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the

Act. Yes ‘ No È

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities
Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and
(2) has been subject to such filing requirements for the past 90 days. Yes È No ‘

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every
Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§229.405 of this chapter) during the
preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes ‘ No ‘

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (section 229.405 of this chapter) is

not contained herein, and will not be contained, to the best of the registrant’s knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. È

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller
reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of
the Exchange Act.

Large accelerated filer ‘
Non-accelerated filer È (Do not check if smaller reporting company)
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ‘ No È
As of June 28, 2009, the last business day of the registrant’s most recently completed second fiscal quarter, the registrant’s common
stock was not listed on any exchange or over-the-counter market. The registrant’s common stock began trading on The NASDAQ Global
Select Market on November 18, 2009. As of December 31, 2009, the aggregate market value of shares of common stock held by
non-affiliates of the registrant was $586.7 million based on the number of shares held by non-affiliates as of December 31, 2009 and based
on the last reported sale price of the registrants’ common stock on December 31, 2009. For purposes of this disclosure, shares of common
stock held by persons who hold more than 5% of the outstanding shares of common stock and shares held by executive officers and
directors of the registrant have been excluded because such persons may be deemed to be affiliates. This determination of executive officer
or affiliate status is not necessarily a conclusive determination for other purposes.

‘
Accelerated filer
Smaller reporting company ‘

As of March 1, 2010, there were 67,288,022 shares of the registrant’s common stock outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant’s definitive Proxy Statement relating to its 2010 Annual Meeting of Stockholders are incorporated by
reference into Part III of this Annual Report on Form 10-K where indicated. Such Proxy Statement will be filed with the U.S. Securities
and Exchange Commission within 120 days after the end of the fiscal year to which this report relates.

FORTINET INC

ANNUAL REPORT ON FORM 10-K

For the Fiscal Year Ended December 31, 2009

Table of Contents

Part I

Item 1. Business . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 1A. Risk Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 1B. Unresolved Staff Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 2.
Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 3. Legal Proceedings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 4. Reserved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Part II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of

Equity Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 6.
Selected Financial Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations . . . . .
Item 7A. Quantitative and Qualitative Disclosures about Market Risk . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 8.
Financial Statements and Supplementary Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure . . . . .
Item 9A. Controls and Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Part III

Item 10. Directors, Executive Officers and Corporate Governance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 11. Executive Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder

Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 13. Certain Relationships and Related Transactions, and Director Independence . . . . . . . . . . . . . . . . .
Item 14. Principal Accounting Fees and Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Part IV

Page

1
17
41
41
41
42

42
45
48
73
74
104
104

104
105

105
105
105

Item 15. Exhibits and Financial Statement Schedules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

105

[THIS PAGE INTENTIONALLY LEFT BLANK]

ITEM 1. Business

Overview

Part 1

We have pioneered an innovative, high performance network security solution to the fundamental problems

of an increasingly bandwidth-intensive network environment and a more sophisticated information technology
(“IT”) threat landscape. We are a leading provider of network security appliances and the market leader in
Unified Threat Management (“UTM”). Through our products and subscription services, we provide broad,
integrated and high performance protection against dynamic security threats while simplifying the IT security
infrastructure for enterprises, service providers and government entities worldwide. Our flagship UTM solution
consists of our FortiGate appliance products that provide a broad array of security and networking functions,
including firewall, VPN, antivirus, intrusion prevention, Web filtering, antispam, and WAN acceleration. Our
FortiGate appliances, from the FortiGate-50 for small businesses and branch offices to the FortiGate-5000 series
for large enterprises and service providers, are based on our proprietary technology platform. This platform
includes our FortiASICs, which are specifically designed for accelerated processing of security and networking
functions, and our FortiOS operating system, which provides the foundation for all of our security functions. Our
FortiGuard security subscription services provide end-customers with access to dynamic updates to our antivirus,
intrusion prevention, Web filtering and antispam functionality based on intelligence gathered by our dedicated
FortiGuard Labs team. By combining multiple proprietary security and networking functions with our purpose-
built FortiASIC and FortiOS, our FortiGate UTM solution delivers broad protection against dynamic security
threats while reducing the operational burden and costs associated with managing multiple point products.

We complement our FortiGate product line with a family of FortiManager appliances, which enable
end-customers to manage the system configuration and security functions of multiple FortiGate appliances from
a centralized console, as well as FortiAnalyzer appliances, which enable collection, analysis and archiving of
content and log data generated by our products. We also offer other appliances and software that provide
additional protection, such as: (i) FortiMail, a family of multi-featured, high performance messaging security
appliances, (ii) FortiDB, a family of appliances that provide centrally managed database-specific security,
(iii) FortiClient, a software product that provides endpoint security for desktops, laptops and mobile devices and
that is primarily used in conjunction with our FortiGate appliances, (iv) FortiWeb, an appliance that provides
security for Web-based applications, and (v) FortiScan, an appliance designed to provide endpoint vulnerability
assessment and remediation.

As of December 31, 2009, we had shipped over 500,000 appliances to more than 5,000 channel partners and

75,000 end-customers worldwide, including a majority of the 2009 Fortune Global 100.

We were incorporated in Delaware in November 2000. Our principle executive office is located at 1090

Kifer Road, Sunnyvale, California 94086 and our telephone number at that location is (408) 235-7700.

Technology and Architecture

Our proprietary FortiASIC, hardware architecture, FortiOS operating system and associated security and
networking functions combine to form a platform that integrates security features and enables our products to
perform sophisticated security processing for networks with high throughput requirements.

FortiASIC

Our FortiASIC family of ASICs is comprised of the FortiASIC content processor, or CP, line and the
FortiASIC network processor, or NP, line. These custom ASICs are designed to enhance the sophisticated
security processing capabilities implemented in software by accelerating the computational intensive tasks such
as firewall policy enforcement or IPS anomaly detection. This architecture provides the flexibility of
implementing accelerated processing of new threat detection without requiring a new ASIC release. We are able

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to implement additional new computationally intensive security tasks in later generations of ASICs thereby
providing further acceleration capabilities. The FortiASIC CP is currently included in most of our entry-level and
all of our mid-range and high-end FortiGate appliances. The FortiASIC NP is currently included in most of our
high-end and some of our mid-range FortiGate appliances, delivering further accelerated firewall and VPN
performance.

• FortiASIC CP. Our sixth generation FortiASIC CP implements several techniques in hardware to assist
in computationally intensive tasks, such as protocol parsing and encryption/decryption processing
associated with VPN. In addition, the FortiASIC CP implements other techniques, such as shared
memory integration, to reduce the overhead associated with processing data in multiple locations. The
FortiASIC CP is a critical component that accelerates processing of sophisticated content inspection
tasks executed by the FortiOS.

• FortiASIC NP. Our second generation FortiASIC NP is an in-line processor that is designed to

accelerate some of the common tasks associated with the processing of network traffic, especially in
the context of network security. In particular, the FortiASIC NP is capable of accelerating several
computationally intensive security tasks such as firewall policy enforcement, encryption and
decryption of VPN traffic and traffic shaping, to enable increased network security protection while
minimizing any impact to network bandwidth and throughput. The FortiASIC NP is also flexible in its
ability to handle a variety of network traffic types and is agnostic to packet size and other attributes that
are different among various network deployments.

Custom Hardware Architecture

Our custom hardware architecture provides the foundation for all FortiGate platforms, combining the
integration of FortiASICs with general purpose processors, high-performance network interfaces and custom
expansion capabilities. By developing a custom hardware architecture, we are able to incorporate our ASICs
within the system to optimize their ability to process traffic for network and security functions.

FortiOS

FortiOS provides the foundation for the operation of all FortiGate appliances, from the core kernel functions

to the security processing feature sets. FortiOS provides multiple layers of security including a hardened kernel
layer providing protection for the FortiGate system, a network security layer providing security for
end-customers’ network infrastructures, and application content protection providing security for end-customers’
workstations and applications. FortiOS directs the operations of processors and ASICs as well as providing
system management functions such as command-line and graphical user interfaces. We make available updates
to the FortiOS through our FortiCare support services. FortiOS also enables advanced, integrated routing and
switching, allowing end-customers to deploy FortiGate devices within a wide variety of networks, as well as
providing a direct replacement solution option for legacy switching and routing equipment. The FortiOS
implements a suite of commonly used routing protocols as well as address translation technologies allowing the
FortiGate appliance to integrate and operate in a wide variety of network environments. Our technology permits
seamless integration into existing network infrastructures with minimal disruption. Additional features include
Virtual Domain, or VDOM, capabilities and traffic queuing and shaping enabling administrators to set the
appropriate configurations and policies that meet their infrastructure needs. FortiOS also provides capabilities for
logging of traffic for forensic analysis purposes which are particularly important for regulatory compliance
initiatives like PCI DSS. FortiOS’s packet classification, queue disciplines, policy enforcement, congestion
management, and other traffic optimization functionality are designed to help control network traffic in order to
optimize performance.

2

Security and Networking Functions

Our FortiOS incorporates the following seven core security and networking technologies:

• Firewall. Our firewall technology delivers high performance network and application firewalling,

including the ability to enforce policies based on the application behavior. Our technology identifies
traffic patterns and links them to the use of specific applications, such as instant messaging and
peer-to-peer applications, permitting application access control. By coupling application intelligence
with firewall technology, the FortiGate platform is able to deliver real-time security with integrated
application content level inspection, thereby simplifying security deployments.

• Virtual Private Network. Our advanced VPN technology provides secure communications between

multiple networks and hosts, through both secure socket layer, or SSL, and IPsec VPN technologies,
leveraging our custom FortiASIC to provide hardware acceleration for high-performance
communications and data privacy. Benefits include the ability to enforce complete content inspection
and multi-threat security as part of VPN communications, including antivirus, Intrusion Prevention
System, or IPS, and Web filtering. Additional features include traffic optimization providing
prioritization for traffic across VPNs.

• Antivirus. Our antivirus technology provides protection against malware, including viruses, spyware
and trojans. Our FortiGuard security subscription services provide updates to signatures to maintain a
high level of accuracy and detection capabilities in our products.

•

Intrusion Prevention System. Our IPS technology provides protection against current and emerging
network level threats. In addition to signature-based detection, we perform anomaly-based detection
whereby our system alerts users to traffic that fits a specific attack behavior profile. This behavior is
then analyzed by our FortiGuard Labs team to identify threats as they emerge and generate new
signatures that will be incorporated into our FortiGuard services.

• Web Filtering. Our Web filtering automation technology works in concert with our research team to
collect, analyze and categorize websites to provide real-time protection through website ratings and
categorization.

Our Web filtering technology is a pro-active defense feature that identifies known locations of malware
and blocks access to these malicious sources. In addition, the technology enables administrators to
enforce policies based on website content categories, ensuring users are not accessing content that is
inappropriate for their work environment. The technology restricts access to denied categories based on
the policy by comparing each Web address request to a Fortinet hosted database.

• Antispam. We employ a variety of antispam techniques to detect and block spam. These techniques
include a hosted service performing algorithmic validations of messages against known spam
messages, sophisticated reputation service designed to evaluate and track valid email sources and
destinations, intelligent image scanning to evaluate the validity of images and dynamic heuristic rules
to allow messages to be evaluated based on content within each message. These techniques can be
combined to identify and block spam with high accuracy catch-rates and to minimize false positives.
We test all filter, rule and definition updates against a large test database of messages to safeguard
against inadvertent filtering of legitimate messages.

• WAN Acceleration. Our storage-enabled and storage-ready FortiGate appliances provide the ability to
accelerate network traffic across the wide area network by implementing a combination of application
content caching and protocol optimization techniques. Combined with our VPN technologies,
end-customers can take advantage of low-cost public network infrastructures to extend their network
reach while experiencing high-performance for their network traffic with comprehensive privacy and
security.

3

In addition to the seven core security and networking functions mentioned above, we also incorporate

additional technologies within FortiGate appliances that differentiate our UTM solution, including:

• Application Control. Our application control technology provides the ability to define granular

network-based application policies giving end-customers additional control over application access. By
designing and implementing a dynamic application behavior detection engine, FortiGate appliances can
detect unique applications regardless of the underlying protocol. Many applications have migrated to
Web-based interfaces, enabling opportunities to carry additional malicious threats. By identifying the
application based on the characteristics of the traffic and behavior, policies can be set to control which
Web applications are allowed or denied thereby reducing the opportunity for both known and new
potentially malicious applications to penetrate the infrastructure.

• Data Leakage Prevention (DLP). Our DLP technology provides the ability to define rules based on

corporate policies, and consequently detect and prevent confidential data from being distributed outside
of the corporate network. By leveraging the inspection capabilities within FortiOS, these DLP policies
are able to identify and stop the transmission of confidential data within various application content.
Additional capabilities include the identification of the source where known confidential data is being
originated from, thereby allowing administrative action to take place. Traffic that has been identified
based on these corporate policies can be archived for further analysis.

•

•

Traffic optimization. Our traffic optimization technology combines quality of service techniques with
traffic shaping to provide better service to selected network traffic based on customer policies without
causing interruptions to other traffic.

SSL inspection. Our SSL inspection technology provides the ability to decrypt SSL application content
for processing by the FortiOS. The ability to inspect encrypted SSL content enables our customers to
ensure protection from malware that would be otherwise hidden from traditional security products, and
enforce the full complement of security and networking features available within FortiOS.

Products

Our core product offerings consist of our FortiGate UTM appliance family, along with our FortiManager

central management appliance and FortiAnalyzer central logging and reporting appliance, both of which are
typically purchased to complement a FortiGate deployment.

FortiGate

Our flagship FortiGate appliances offer a set of security and networking functions, including firewall, VPN,

antivirus, intrusion prevention, Web filtering, antispam and WAN acceleration. All FortiGate appliances are
based on our proprietary operating system, FortiOS, and substantially all FortiGate models include our
proprietary FortiASICs to accelerate content and network security features implemented within FortiOS.
FortiGate appliances can be centrally managed through both embedded Web-based and command line interfaces,
as well as through FortiManager which provides a central management architecture for thousands of FortiGate
appliances.

By combining multiple network security functions in our purpose-built security platform, the FortiGate

provides high quality protection capabilities and deployment flexibility while reducing the operational burden
and costs associated with managing multiple point products. Through FortiGuard security subscription services,
our products enable end-customers to add security functionality as required by their evolving business needs and
the changing threat landscape. By purchasing FortiGuard security subscription services, end-customers obtain
coverage and access to regular updates for antivirus, IPS, Web filtering and antispam functions for their
FortiGate appliances. With over 30 models in the FortiGate product line, FortiGate is designed to address
security requirements for small-to-mid sized businesses, remote offices, large enterprises, and service providers.

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Each FortiGate appliance runs our FortiOS operating system, and substantially all include our FortiASIC
CP. The significant differences between each model are the performance and scalability targets each model is
designed to meet, while the security features and associated services offered are common throughout all models.

The FortiGate-30 through -100 series models are designed for perimeter protection for small- to mid-sized

businesses and remote offices and as customer premises equipment for service providers. Optional wireless LAN,
or WLAN, integration is available for the FortiGate-50, -60 and -80 models, marketed as FortiWiFi, delivering
additional network access and security for wireless environments.

The FortiGate-200 through -800 series models are designed for perimeter deployment in mid-sized to large

enterprise networks. These products offer increased capacity and scalability designed to provide high network
performance while delivering the same broad security suite as all FortiGate models. Additionally, the
FortiGate-310 and -620 models provide hardware modularity, allowing end-customers the flexibility to
customize solutions to their requirements, as well as permitting us the opportunity to produce new modules to
sell into existing end-customer deployments.

The FortiGate-1000 through -5000 series models deliver high performance and scalable network security
functionality for perimeter, data center and core deployment in large enterprise and service provider networks.
Additionally, most of these products provide hardware modularity, allowing end-customers the flexibility to
customize solutions to their requirements, as well as permitting us the opportunity to produce new modules to
sell into existing end-customer deployments. Products within the FortiGate-3000 and -5000 series leverage
Advanced Mezzanine Card, or AMC, industry standards for hardware modularization to support the advanced
networking requirements of large enterprises and service providers, including high-speed networking, WAN
connectivity, and network attached storage connectivity. The FortiGate-5000 series is also compatible with the
Advanced Telecommunications Computing Architecture, or ATCA, standard, resulting in a flexible hardware
platform for system modularity. This modularization gives end-customers the ability to deploy an initial
FortiGate configuration with room to grow as their network security needs evolve. The inclusion of network load
balancing and advanced switching functionality provides additional flexibility in how end-customers utilize the
FortiGate modules within the FortiGate chassis. In addition, our FortiGate-5000 series ATCA blades can be
utilized in other third-party vendors’ industry standard ATCA chassis, allowing FortiGates to be deployed into a
much wider range of network solutions. Our FortiGate-5000 series appliances offer modular, chassis-based
architecture based on the ATCA and AMC industry standards. We brand a subset of our FortiGate-3000 and
-5000 series products as FortiCarrier to reflect products specifically targeting a subset of service providers. These
products add incremental security, networking and management functionality often utilized in service provider
deployments.

FortiGate System Virtualization (VDOM)

In addition to providing network and content level security, FortiOS also offers system virtualization
capabilities—the ability to “divide” a security appliance into multiple separately provisioned and managed
instances. This capability is currently deployed in substantially all of our FortiGate products as our virtual
domain, or VDOM, feature, where administrators have the ability to segment a single FortiGate appliance
platform into multiple FortiGate instances. Network security system virtualization, using our VDOM feature,
provides isolation between each virtual system, giving administrators flexibility in configuration and traffic
management capabilities for each virtual instance. For example, for a service provider that is delivering managed
security services to multiple customers, each customer of the service provider may require a tailored set of
security services that suits their specific network requirements. To accomplish this, the service provider could
use our FortiGate virtualization feature to partition one FortiGate blade or appliance into hundreds of instances,
customizing each instance for each customer. This ensures that each of their customers’ networks is separate and
private with unique routing, management and policy enforcement. By implementing virtualization, each
customer of a security service provider has the ability to refine its requirements to meet its specific goals. The
virtualization of our FortiGate functionality lowers capital and operational expenditures for enterprises and
service providers and simplifies administration and management.

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Fortinet Management and Analysis Appliances

The table below presents the capabilities of our FortiManager and FortiAnalyzer appliances, which are

typically sold in conjunction with a large FortiGate deployment:

Product

Feature Highlights

FortiGuard Services Available

FortiManager
(Centralized management appliance)

• Configuration management
• FortiOS upgrade management
• Caching of FortiGuard updates

• Not applicable

FortiAnalyzer
(Centralized reporting and analysis
appliance)

FortiManager

• Network event correlation
• Content archiving

• Vulnerability management

services

Our FortiManager appliances provide a central management solution for our FortiGate appliances, including
the wide variety of network and security features offered within FortiOS. One FortiManager appliance is capable
of effectively managing thousands of FortiGate units, and also provides central management for FortiClient
software. FortiManager facilitates the coordination of policy-based provisioning, device configuration and
operating system revision management, as well as network security monitoring and device control.

FortiAnalyzer

Our FortiAnalyzer appliances are network logging, analyzing, and reporting appliances that securely
aggregate content and log data from our FortiGate and other products as well as third-party devices to enable
network logging, analysis and reporting. Additional functions such as vulnerability assessments and traffic
analysis provide additional value for customers seeking to control and monitor their network infrastructure and
security policies. A full range of content and log data, including traffic, event, virus, attack, Web content, and
email data may be archived, filtered and mined for compliance or historical analysis purposes. The appliance
comes with a suite of standard reports as well as the ability to customize reports.

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Additional Fortinet Solutions

We also offer other appliances and software that protect our end-customers from security threats to other
critical areas in the enterprise, such as messaging, Web-based traffic and databases, and employees’ computers or
handheld devices.

Product

Feature Highlights

FortiGuard Services Available

FortiMail
(Email antispam and security
appliance)

FortiDB
(Database security appliance)

FortiClient
(Endpoint security software)

FortiWeb
(Web application firewall appliance)

FortiScan
(Endpoint vulnerability management
appliance)

FortiMail

• Inbound and outbound email

spam protection

• Email antivirus protection
• Email content archiving

• Antispam
• Antivirus

• Database vulnerability

• Database policy updates

assessment

• Activity monitoring and
auditing for database
transactions

• Database discovery

• Antivirus
• Antispam
• Personal firewall
• IPsec VPN
• Web content filtering
• Data loss prevention
• WAN acceleration

• XML IPS and validation
• SSL acceleration
• Server load balancing

• Antivirus
• Antispam
• Web filtering

• Not applicable

• Vulnerability assessment and

• Vulnerability management

remediation

• Patch management
• Network device inventory

(hardware, OS and applications)

services

Our FortiMail appliances provide protection against threats conveyed by messaging applications, including
blended threats such as a coordinated, single attack comprised of spam, viruses and worms. These systems offer
flexibility to support a variety of existing deployments with minimal change to existing infrastructure. The
FortiMail systems utilize a customized operating system designed to inspect and clean both inbound and
outbound email traffic. FortiMail detects security threats through sophisticated antispam, antivirus and anti-
malware engines. Additional functionality designed to eliminate deployment barriers and increase system value
includes email routing, system virtualization, and archiving.

FortiDB

Our FortiDB appliance provides a comprehensive solution for database security assessment, identifying
potential vulnerabilities that otherwise could be exploited by attackers. This solution is able to discover databases
within a network infrastructure allowing administrators to confirm known databases and identify potentially
harmful unknown or unauthorized databases. The ability to evaluate and report on database software and
database server vulnerabilities provides the database administrator with a comprehensive list of security concerns
and recommended actions to remediate them ensuring a security-hardened database environment.

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FortiClient

Our FortiClient product is an endpoint software solution designed to be used in connection with our
FortiGate appliances to provide security features for enterprise computers and mobile devices. The feature set
includes personal firewall, IPsec VPN, antivirus, Web filtering, WAN acceleration, DLP and antispam.
FortiClient is supported by FortiGuard security subscription services to help ensure endpoints are protected on a
real-time basis against current and emerging threats. FortiClient software is available for Microsoft Windows XP,
Microsoft Vista, Microsoft Windows Mobile and Symbian operating systems.

FortiWeb

Our FortiWeb appliance provides Web application firewalls and networking features designed to protect,
balance, and accelerate Web applications. The FortiWeb is designed for medium and large enterprises, cloud
service providers and consumer Internet and e-commerce companies, and can significantly reduce the
deployment time and complexities of introducing Web applications. The FortiWeb applies our industry leading
threat research to protect Web application servers, improving the security of confidential information and aiding
in legislative and PCI DSS compliance. FortiWeb goes beyond traditional Web application firewalls to provide
XML security enforcement, application acceleration, and server load balancing.

FortiScan

Our FortiScan appliance provides endpoint vulnerability management, inventory (asset and software)

industry compliance evaluation, patch management and remediation, auditing and reporting. These tasks are
important for enterprises to assess and ensure the defensive capabilities of their endpoints. The ability to provide
agent-less and agent-based vulnerability assessment allows for flexibility in deployment with minimal impact on
endpoint configurations. Additionally, administrators are able to remediate vulnerabilities found within endpoints
from a central location without user participation simplifying security and compliance initiatives.

Services

FortiGuard Security Subscription Services

Security requirements are dynamic due to the constantly changing nature of threats. Using automated
processes, our FortiGuard Labs team, comprised of over 100 professionals, identifies emerging threats, collects
threat samples, and replicates, reviews and characterizes attacks. Based on this research, we develop updates for
virus signatures, attack definitions, scanning engines, and other security solution components to distribute to
end-customers through our FortiGuard global distribution network. Our FortiGuard security subscription services
are designed to allow us to quickly deliver new threat detection capabilities to end-customers worldwide as new
threats evolve. End-customers purchase FortiGuard security subscription services in advance, typically for a
one-year term, to obtain coverage and access to regular updates for antivirus, intrusion prevention, Web filtering
and antispam functions for our FortiGate appliances, antivirus, Web filtering and antispam functions for our
FortiClient software, antivirus and antispam functions for our FortiMail appliances. We provide FortiGuard
services 24 hours a day, seven days a week.

• Antivirus. Through our FortiGuard Antivirus service, we provide updates for several of our network
appliance products and endpoint software with the latest antivirus defenses against evolving threats.
We add or update a large number of antivirus signatures each week to help protect against evolving
malware threats, such as viruses, spyware, and worms. In addition to antivirus signatures, our products
utilize “anomaly-based detection” techniques through which detection occurs by recognizing data
patterns that do not conform to what is considered a typical signature to defend against an additional
set of unknown threats.

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Intrusion Prevention System. Through our FortiGuard IPS service, we provide end-customers with the
latest defenses against suspicious network activity. We also offer end-customers the ability to define
their own detection profiles and signatures for use with their FortiGate products.

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• Web Filtering. Through our FortiGuard Web Filtering service, we deliver updates to the hosted Web
filtering database to regulate Web activities, allowing end-customers to meet human resources and
corporate internet usage policies and educational compliance requirements and help block access to
harmful or non-productive websites. Our researchers use a combination of automation tools and
targeted research analysis to gather and review website URLs and to rate and categorize URLs into
categories on a real-time basis.

• Antispam. The FortiGuard antispam service is the delivery mechanism for antispam signature updates
for FortiGate, FortiMail and FortiClient products. We updated our antispam databases based on real-
time data collected from decoy email addresses and add a large number of new antispam signatures
weekly to augment our current database of antispam signatures.

• Database Policies for FortiDB. Through our FortiGuard FortiDB database service, we deliver updates
to policies utilized by our FortiDB appliance. These updates typically consist of changes to our many
FortiDB policies that cover known exploits, configuration weaknesses, OS issues, operational risks,
and data access privileges. FortiDB uses the policies to generate actionable reports so that
organizations can ensure databases conform to corporate standard configurations, implement tests for
custom applications, or conduct penetration testing of databases.

• Vulnerability Management. Through our FortiGuard Vulnerability and Compliance Management, or
FortiGuard-VCM, service, we deliver vulnerability database updates for our FortiAnalyzer and
FortiScan products. These updates help organizations minimize the risk of vulnerabilities by enabling
our FortiScan products to quickly discover vulnerabilities, measure the potential risk of these
vulnerabilities, and then provide the information necessary to mitigate these risks.

FortiCare Technical Support Services

Our FortiCare services are our technical support services for the software, firmware and hardware in our

products. In addition to our standard support service offering, we offer a premium service that offers faster
response times and dedicated support oriented towards major accounts.

For our standard technical support offering for our products, channel partners often provide first level
support to the end-customer, especially for small and mid-sized end-customers, and we typically provide second
and third level support to our end-customers. We also provide knowledge management tools and customer self-
help portals to help augment our support capabilities in an efficient and scalable manner. We provide technical
support to partners and end-customers 24 hours a day, seven days a week through regional technical support
managers located worldwide. Our service representatives work with our end-customers to qualify and
characterize the issue at hand, and to efficiently route the FortiCare case to the appropriate specialized customer
service engineer. In addition to post sales support activities, our support organization places emphasis on service
readiness by coordinating with our product management team to ensure the attainment of defined pre-requisite
quality levels for our products and services prior to release.

Training Services

We offer training services to our end-customers and channel partners, through our training department and
authorized training partners. These services are designed to help educate end-customers and partners regarding
implementation, use and functionality, and maintenance and support of our products. We have also implemented
a training certification program to ensure an understanding of our products and services. As of December 31,
2009, more than 13,000 individuals have participated in our training programs.

Professional Services

We offer professional services to end-customers primarily for large implementations where expert technical

resources are required. Our professional services consultants help in the design of deployments of our products

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and work closely with end-customer engineers, managers and other project team members to implement our
products according to design, utilizing network analysis tools, attack simulation software and scripts.

Customers

We sell our security solutions through channel partners to end-customers of various sizes—from small

businesses to large enterprises and service providers—and across a variety of industries including
telecommunications, government, financial services, retail, education, technology, healthcare and manufacturing.
An end-customer deployment may involve one of our appliances or thousands, depending on our end-customers’
size and security requirements. As of December 31, 2009, we had shipped over 500,000 appliances to more than
5,000 channel partners and 75,000 end-customers worldwide, including a majority of the 2009 Fortune Global
100.

During fiscal 2009, 2008, and 2007, one channel partner, Alternative Technology, Inc., a subsidiary of

Arrow Electronics, Inc., accounted for approximately 12% of total revenue.

Our end-customers deploy our products to provide security for a wide variety of network environments. Our

network deployment scenarios include protection for core infrastructures, remote / branch offices, data centers,
switching infrastructures, perimeter deployments and endpoints.

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The following examples illustrate typical deployment scenarios for our FortiGate and related appliances:

Large Enterprise Deployment

The following diagram represents a large enterprise data center deployment using our FortiGate products.
The FortiGate appliance is deployed in the data center to provide security segmentation within the company’s
enterprise networks. In this scenario, our products enable the segmentation of the network into three parts: (i) the
Web server segment that connects corporate Web servers to public Internet users; (ii) the email server segment
that connects internal corporate email servers providing access to enterprise end-users; and (iii) the LAN,
providing network access to enterprise end-users. The FortiGate appliance allows administrators the ability to
deploy a tailored set of features within each network segment. In this scenario, the customer has deployed
firewall, antivirus, and IPS for the Web server segment, firewall, antispam and antivirus for the email server
segment and firewall, DLP, application control, Web filtering, IPS and antivirus for the LAN segment. End-
customer deployments may vary with the number and diversity of features deployed.

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Distributed Enterprise Deployment

The following diagram represents a distributed enterprise deployment comprised of a main corporate office

and multiple remote locations using our FortiGate products. The FortiGate appliances are deployed in both the
remote offices and the corporate office locations to provide secure remote access between locations using IPsec
VPN. Additionally, the remote locations utilize multiple security technologies including firewall, antivirus,
antispam, IPS and Web filtering. The addition of WAN acceleration provides additional benefits by improving
network performance between the remote locations and the main corporate office. In this example, the distributed
enterprise implementation consists of high-end FortiGate deployments at the corporate headquarters and entry-
level FortiGate deployments at other remote locations which complete the VPN connectivity and WAN
acceleration across the distributed enterprise and provide core network firewall, antivirus and IPS protection for
all locations.

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Service Provider Deployment

The following diagram represents a service provider hosted security offering using our FortiGate products.

The high-end FortiGate appliance is deployed in the service provider’s data center to deliver security for
customers subscribing to the service provider’s internet services. A typical deployment is implemented with our
VDOM technology, which enables service providers the ability to utilize the FortiGate’s security virtualization
capabilities across hundreds of customers leveraging a single appliance while simulating multiple appliances. In
this scenario, the service provider is able to deliver tailored security offerings based on the customer’s specific
requirements. Customer A is subscribing to firewall, antispam, antivirus and Web filtering. Customer B is
subscribing to antispam, firewall and antivirus. Customer C is subscribing to application control, WAN
optimization and Web filtering. This deployment enables additional revenue opportunities for the service
provider without additional equipment purchases.

Sales and Marketing

We primarily sell our products and services directly to distributors who sell to resellers and service

providers, who, in turn, sell to our end-customers. In certain cases, we sell directly to government focused
resellers, very large service providers and major systems integrator partners who have large purchasing power
and unique customer deployment demands. As of December 31, 2009, our distribution channel program had
approximately 5,000 channel partners worldwide. We work with many of the world’s leading technology
distributors, including Arrow Electronics, Inc., Ingram Micro Inc. and Tech Data Corporation.

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We support our channel partners with a team of experienced channel account managers, sales professionals
and sales engineers who provide business planning, joint marketing strategy, and pre-sales and operational sales
support. Additionally, our sales team often helps drive and support large enterprise and service provider sales
through a direct touch model. Our sales professionals and engineers typically work alongside our channel
partners and directly engage with end-customers to address their unique security and deployment requirements.
Our sales cycle for an initial end-customer purchase typically ranges from three to six months but can be longer
especially for large enterprises, service providers and government customers. To support our broadly dispersed
global channel and end-customer base, we have sales offices in over 30 countries around the world.

Our marketing strategy is focused on building our brand and driving end-customer demand for our security

solutions. We execute this strategy by leveraging a combination of internal marketing professionals and a
network of regional and global channel partners. Our internal marketing organization is responsible for branding,
product marketing, channel marketing and sales support programs. We focus our resources on programs, tools
and activities that can be leveraged by partners worldwide to extend our marketing reach, such as sales tools and
collateral, product awards and technical certifications, training, regional seminars and conferences, webinars and
various other demand-generation activities.

Manufacturing and Suppliers

We outsource the manufacturing of our security appliance products to a variety of contract manufacturers
and original design manufacturers. Our current manufacturing partners include Flextronics International Ltd.,
Micro Star International, Ltd., Creation Technologies, Inc. and a number of additional Taiwan-based
manufacturers. We submit purchase orders to our contract manufacturers that describe the type and quantities of
our products to be manufactured, the delivery date and other delivery terms. Once our products are manufactured,
they are sent to either our headquarters in Sunnyvale, California, or to our logistics partner in Taoyuan City,
Taiwan, where accessory packaging and quality-control testing are performed. We use one third-party logistics
provider that accounted for a material portion of our shipments in fiscal 2008 and in fiscal 2009. We believe that
outsourcing our manufacturing and a substantial portion of our logistics enables us to conserve capital, better
adjust manufacturing volumes to meet changes in demand and more quickly deliver products, while allowing us
to focus resources on our core competencies. Our proprietary FortiASIC, which is the key to the performance of
our appliances, is fabricated by contract manufacturers in foundries operated by UMC and TSMC. Faraday
(using UMC’s foundry) and K-Micro (using TSMC’s foundry) manufacture our ASICs on a purchase order basis.
Accordingly, they are not obligated to continue to fulfill our supply requirements, and the prices we are charged
for the fabrication of our ASICs could be increased on short notice.

The components included in our products are sourced from various suppliers by us or more frequently by

our contract manufacturers. Some of the components important to our business, including central processing
units from Intel, AMD, RMI and VIA and network chips from Broadcom, Marvell and Intel, are available from a
limited or sole source of supply.

We have no long-term contracts related to the manufacturing of our ASICs or other components that

guarantee any capacity or pricing terms.

Research and Development

We focus our research and development efforts on developing new products and systems, and adding new

features to existing products and systems. Our development strategy is to identify features, products and systems
for both software and hardware that are, or are expected to be, needed by our end-customers. Our success in
designing, developing, manufacturing and selling new or enhanced products will depend on a variety of factors,
including the identification of market demand for new products, product selection, timely implementation of
product design and development, product performance, effective manufacturing and assembly processes and
sales and marketing.

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As of December 31, 2009, our research and development organization had headcount of 412 people
predominantly in Canada, China, and the United States. Our research and development expense in fiscal 2009
was $42.2 million, in fiscal 2008 was $37.0 million and in fiscal 2007 was $27.6 million.

Intellectual Property

We rely primarily on patent, trademark, copyright and trade secrets laws, confidentiality procedures and
contractual provisions to protect our technology. As of December 31, 2009, we had 35 issued U.S. patents, 5
issued Chinese patents, 96 patent applications pending for examination in the United States and 26 patent
applications pending for examination in China, 19 of which are related to U.S. applications. We purchased most
of our issued U.S. patents and many of our pending U.S. patent applications from other entities. We also license
software from third parties for integration into our products, including open source software and other software
available on commercially reasonable terms.

Despite our efforts to protect our proprietary rights, unauthorized parties may attempt to copy aspects of our

products or obtain and use information that we regard as proprietary. We generally enter into confidentiality
agreements with our employees, consultants, vendors and customers, and generally limit access to and
distribution of our proprietary information. However, we cannot assure you that the steps taken by us will prevent
misappropriation of our technology. In addition, the laws of some foreign countries do not protect our proprietary
rights to as great an extent as the laws of the United States, and many foreign countries do not enforce these laws
as diligently as government agencies and private parties in the United States.

Our industry is characterized by the existence of a large number of patents and frequent claims and related

litigation regarding patent and other intellectual property rights. In particular, leading companies in the
networking industry have extensive patent portfolios. From time-to-time, third parties, including certain of these
leading companies, have asserted and may assert patent, copyright, trademark and other intellectual property
rights against us, our channel partners or our end-customers. Successful claims of infringement by a third party
could prevent us from distributing certain products or performing certain services or require us to pay substantial
damages (including treble damages if we are found to have willfully infringed patents or copyrights), royalties or
other fees. Even if third parties may offer a license to their technology, the terms of any offered license may not
be acceptable and the failure to obtain a license or the costs associated with any license could cause our business,
operating results or financial condition to be materially and adversely affected. We typically indemnify our
end-customers, distributors and certain resellers against claims that our products infringe the intellectual property
of third parties.

Competition

The markets for our products are extremely competitive and are characterized by rapid technological

change. The principal competitive factors in our markets include the following:

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product performance, features, effectiveness, interoperability and reliability;

technological expertise;

price of products and services and total cost of ownership;

brand recognition;

customer service and support;

sales and distribution capabilities;

compliance with industry standards and certifications;

size and financial stability of operations; and

breadth of product line.

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Our competitors include networking companies such as Cisco Systems, Inc., and Juniper Networks, Inc.,
security vendors such as Check Point Software Technologies Ltd., McAfee, Inc., and SonicWALL, Inc., and
other point solution security vendors.

We believe we compete favorably based on our products’ performance, reliability and breadth, and our
ability to add and integrate new networking and security features and based on our technological expertise.
Several competitors are significantly larger, have greater financial, technical, marketing, distribution, customer
support and other resources, are more established than we are, and have significantly better brand recognition.
Some of these larger competitors have substantially broader product offerings and leverage their relationships
based on other products or incorporate functionality into existing products in a manner that discourages users
from purchasing our products. Based in part on these competitive pressures, we may lower prices or attempt to
add incremental features and functionality.

Conditions in our markets could change rapidly and significantly as a result of technological advancements

or continuing market consolidation. The development and market acceptance of alternative technologies could
decrease the demand for our products or render them obsolete. Our competitors may introduce products that are
less costly, provide superior performance or achieve greater market acceptance than our products. In addition,
our larger competitors often have broader product lines and market focus, are in a better position to withstand
any significant reduction in capital spending by end-customers in these markets, and will therefore not be as
susceptible to downturns in a particular market. The above competitive pressures are likely to continue to
adversely impact our business. We may not be able to compete successfully in the future, and competition may
harm our business.

Employees

As of December 31, 2009, our total headcount was 1,223 people including payrolled contractors. We had
412 in research and development, 417 in sales and marketing, 249 in services and support, 40 in manufacturing
operations, and 105 in a general and administrative capacity. As of December 31, 2009, our headcount was 288
people in the United States, 386 in Canada, 79 in France, 216 in China and 254 in other countries.

None of our U.S. employees is represented by a labor union with respect to his or her employment with us;

however, our employees in France, Spain and Italy are represented by a collective bargaining agreement. We
have not experienced any work stoppages, and we consider our relations with our employees to be good.

Facilities

Our corporate headquarters are located at 1090 Kifer Road, Sunnyvale, California in an office consisting of

approximately 107,000 square feet. The lease for this office expires in September 2013. We sublease
approximately 23,000 square feet of this space pursuant to a sublease that expires in December 2011.

In addition to our headquarters, we lease approximately 14,000 square feet of data center space and a total

of approximately 65,000 square feet of office space in several buildings in Burnaby, Canada under various leases
that expire between January 2012 and July 2015, approximately 16,000 square feet of office space in Ottawa,
Canada under a lease that expires in February 2014, approximately 15,500 square feet of office space in Sophia,
France under a lease that expires in December 2013, and approximately 26,000 square feet of office space
in Beijing, China under a lease that expires in August 2011. We also lease sales and support offices in Australia,
Austria, Belgium, Egypt, Germany, Hong Kong, India, Indonesia, Italy, Japan, Korea, Malaysia, Mexico, the
Netherlands, New Zealand, Philippines, Poland, Singapore, Spain, Sweden, Switzerland, Taiwan,
Thailand, United Arab Emirates, and the United Kingdom. We believe that our existing properties are in good
condition and are sufficient and suitable for the conduct of our business.

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Available Information

Our web site is located at www.fortinet.com, and our investor relations web site is located at

http://investor.fortinet.com. The information posted on our website is not incorporated into this Annual Report on
Form 10-K. Our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K
and amendments to reports filed or furnished pursuant to Sections 13(a) and 15(d) of the Securities Exchange Act
of 1934, as amended, are available free of charge on our investor relations web site as soon as reasonably
practicable after we electronically file such material with, or furnish it to, the SEC. You may also access all of
our public filings through the SEC’s website at www.sec.gov. Further, a copy of this Annual Report on
Form 10-K is located at the SEC’s Public Reference Room at 100 F Street, NE, Washington, D.C. 20549.
Information on the operation of the Public Reference Room can be obtained by calling the SEC at
1-800-SEC-0330.

We webcast our earnings calls and certain events we participate in or host with members of the investment
community on our investor relations web site. Additionally, we provide notifications of news or announcements
regarding our financial performance, including SEC filings, investor events, press and earnings releases, as part
of our investor relations web site. The contents of these web sites are not intended to be incorporated by
reference into this report or in any other report or document we file.

ITEM 1A. Risk Factors

Investing in our common stock involves a high degree of risk. You should carefully consider the following
risks and all other information contained in this 10-K, including our consolidated financial statements and the
related notes, before investing in our common stock. The risks and uncertainties described below are not the only
ones we face. Additional risks and uncertainties that we are unaware of, or that we currently believe are not
material, also may become important factors that affect us. If any of the following risks materialize, our business,
financial condition and results of operations could be materially harmed. In that case, the trading price of our
common stock could decline, and you may lose some or all of your investment.

Risks Related to Our Business

Our quarterly operating results are likely to vary significantly and be unpredictable.

Our operating results have historically varied from period to period, and we expect that they will continue to

do so as a result of a number of factors, many of which are outside of our control, including:

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the level of demand for our products and services, and the timing of channel partner and end-customer
orders;

the timing of shipments, which may depend on many factors such as inventory and logistics and our
ability to ship new products on schedule and accurately forecast inventory requirements;

the mix of products sold, the mix of revenue between products and services and the degree to which
products and services are bundled and sold together for a package price;

the budgeting cycles and purchasing practices of our channel partners and end-customers;

seasonal buying patterns of our end-customers;

the timing of revenue recognition for our sales, which may be affected by both the mix of sales by our
“sell-in” versus our “sell-through” channel partners, and by the extent to which we bring on new
distributors;

the accuracy and timing of point of sale reporting by our sell-through distributors, which impacts our
ability to recognize revenue;

the level of perceived threats to network security, which may fluctuate from period to period;

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changes in end-customer, distributor or reseller requirements or market needs;

changes in the growth rate of the network security or UTM markets;

the timing and success of new product and service introductions by us or our competitors or any other
change in the competitive landscape of our industry, including consolidation among our competitors or
end-customers;

deferral of orders from end-customers in anticipation of new products or product enhancements
announced by us or our competitors;

decisions by potential end-customers to purchase network security solutions from larger, more
established security vendors or from their primary network equipment vendors;

price competition;

changes in customer renewal rates for our services;

insolvency or credit difficulties confronting our customers, affecting their ability to purchase or pay for
our products and services;

insolvency or credit difficulties confronting our key suppliers, which could disrupt our supply chain;

general economic conditions, both domestically and in our foreign markets;

future accounting pronouncements or changes in our accounting policies; and

increases or decreases in our expenses caused by fluctuations in foreign currency exchange rates, as a
significant portion of our expenses are incurred and paid in currencies other than U.S. dollars.

Any one of the factors above or the cumulative effect of some of the factors referred to above may result in
significant fluctuations in our quarterly operating results. This variability and unpredictability could result in our
failing to meet our revenue or operating results expectations or those of securities analysts or investors for any
period. If we fail to meet or exceed such expectations for these or any other reasons, the market price of our
shares could fall substantially and we could face costly lawsuits, including securities class action suits. In
addition, a significant percentage of our operating expenses are fixed in nature and based on forecasted revenue
trends. Accordingly, in the event of revenue shortfalls, we are generally unable to mitigate the negative impact on
margins in the short term.

Reliance on a concentration of shipments at the end of the quarter could cause our revenue to fall below
expected levels.

As a result of customer-buying patterns and the efforts of our sales force and channel partners to meet or

exceed quarterly quotas, historically we have received a substantial portion of a quarter’s sales orders and
generated a substantial portion of a quarter’s revenue during the last two weeks or last days of the quarter. If
expected revenue at the end of any quarter is delayed for any reason, including the failure of anticipated purchase
orders to materialize, our or our logistics partners’ inability to ship products prior to quarter-end to fulfill
purchase orders received near the end of the quarter, our failure to manage inventory properly in a way to meet
demand, or our inability to release new products on schedule, our revenue for that quarter could fall below our
expectations or those of securities analysts and investors, resulting in a decline in our stock price.

We have a history of losses and may not maintain profitability, and our revenue growth may not continue.

We have incurred net losses in most fiscal years since our inception, including net losses of $21.8 million in
fiscal 2007, $5.3 million in fiscal 2006, $14.2 million in fiscal 2005 and $59.0 million in fiscal 2004. As a result,
we had an accumulated deficit of $60.0 million at December 31, 2009. Although we were profitable in fiscal
2008 and fiscal 2009, we may not be able to sustain profitability in future periods if we fail to increase revenue or
deferred revenue, manage our cost structure, or are subject to unanticipated liabilities. Revenue growth may slow

18

or revenue may decline for a number of possible reasons, including slowing demand for our products or services,
increasing competition, a decrease in the growth of our overall market, or if we fail for any reason to continue to
capitalize on growth opportunities. Any failure by us to maintain profitability and continue our revenue growth
could cause the price of our common stock to materially decline.

We rely significantly on revenue from subscription and support services which may decline, and, because we
recognize revenue from subscriptions and support services over the term of the relevant service period,
downturns or upturns in sales are not immediately reflected in full in our operating results.

Our services revenue accounted for 55.2% of our total revenue for fiscal 2009, 49.7% of our total revenue

for fiscal 2008, and 47.7% of our total revenue for fiscal 2007. Sales of new or renewal subscription and services
contracts may decline and fluctuate as a result of a number of factors, including end-customers’ level of
satisfaction with our products and services, the prices of our products and services, the prices of products and
services offered by our competitors or reductions in our customers’ spending levels. If our sales of new or
renewal subscription and services contracts decline, our revenue and revenue growth may decline and our
business will suffer. In addition we recognize subscription and service revenue monthly over the term of the
relevant service period, which is typically one year but has been as long as five years. As a result, much of the
revenue we report each quarter is the recognition of deferred revenue from subscription and services contracts
entered into during previous quarters. Consequently, a decline in new or renewed subscription or service
contracts in any one quarter will not be fully reflected in revenue in that quarter, but will negatively affect our
revenue in future quarters. Accordingly, the effect of significant downturns in new or renewed sales of our
subscriptions or services is not reflected in full in our results of operations until future periods. Our subscription
and service revenue also makes it difficult for us to rapidly increase our revenue through additional service sales
in any period, as revenue from new and renewal service contracts must be recognized over the applicable service
period.

Managing inventory of our products and product components is complex. Insufficient inventory may result in
lost sales opportunities or delayed revenue, while excess inventory may harm our gross margins.

Our channel partners may increase orders during periods of product shortages, cancel orders if their

inventory is too high, return product or take advantage of price protection (if any), or delay orders in anticipation
of new products. They also may adjust their orders in response to the supply of our products and the products of
our competitors that are available to them and in response to seasonal fluctuations in end-customer demand.
Management of our inventory is further complicated by the significant number of different products that we sell
and the fact that we sell models that must meet regulatory requirements, such as the European Union’s
Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Directive, or the
EU RoHS.

In addition, for those channel partners that have rights of return, inventory held by such channel partners
affects our results of operations. Our inventory management systems and related supply chain visibility tools may
be inadequate to enable us to effectively manage inventory. Inventory management remains an area of focus as
we balance the need to maintain inventory levels that are sufficient to ensure competitive lead times against the
risk of inventory obsolescence because of rapidly changing technology and customer requirements. If we
ultimately determine that we have excess inventory, we may have to reduce our prices and write-down inventory,
which in turn could result in lower gross margins. For example, in the third and fourth quarters of fiscal 2007 we
had excess inventory, resulting in significant inventory write-offs. Alternatively, insufficient inventory levels,
which we experienced in the fourth quarter of fiscal 2009 may lead to shortages that result in delayed revenue or
loss of sales opportunities altogether as potential end-customers turn to competitors’ products that are readily
available. If we are unable to effectively manage our inventory and that of our distribution partners, our results of
operations could be adversely affected.

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We rely on third-party channel partners to generate substantially all of our revenue. If our partners fail to
perform, our ability to sell our products and services will be limited, and, if we fail to optimize our channel
partner model going forward, our operating results will be harmed.

Substantially all of our revenue is generated through sales by our channel partners, which include

distributors and resellers. We depend upon our channel partners to generate sales opportunities and manage the
sales process. To the extent our channel partners are unsuccessful in selling our products, or we are unable to
enter into arrangements with, and retain a sufficient number of high quality channel partners in each of the
regions in which we sell products, and keep them motivated to sell our products, our ability to sell our products
and operating results will be harmed.

We provide sales channel partners with specific programs to assist them in selling our products, but there

can be no assurance that these programs will be effective. In addition, our channel partners may be unsuccessful
in marketing, selling and supporting our products and services. Our channel partners generally do not have
minimum purchase requirements. They may also market, sell and support products and services that are
competitive with ours, and may devote more resources to the marketing, sales and support of such products. They
may have incentives to promote our competitors’ products to the detriment of our own. They may cease selling
our products altogether. We cannot assure you that we will retain these channel partners or that we will be able to
secure additional or replacement partners. The loss of one or more of our significant channel partners or the
failure to obtain and ship a number of large orders each quarter through them could harm our operating results.
During fiscal 2007, 2008 and 2009, Alternative Technology, Inc., a subsidiary of Arrow Electronics, Inc., was
our most significant channel partner, accounting for 12% of our total revenue in each of the periods. Any new
sales channel partner will require extensive training and may take several months or more to achieve
productivity. Our channel partner sales structure could subject us to lawsuits, potential liability and reputational
harm if, for example, any of our channel partners misrepresent the functionality of our products or services to
end-customers or our channel partners violate laws or our corporate policies. If we fail to manage existing sales
channels, our business will be seriously harmed.

If we are not successful in continuing to execute our strategy to increase our sales to larger end-customers,
our results of operations may suffer.

An important part of our growth strategy is to increase sales of our products to large enterprises, service

providers and government entities. Sales to enterprises, service providers and government entities involve risks
that may not be present (or that are present to a lesser extent) with sales to small-to-mid-sized entities. These
risks include:

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increased competition from larger competitors, such as Cisco Systems, Inc., Check Point Software
Technologies Ltd., McAfee, Inc. and Juniper Networks, Inc., that traditionally target enterprises,
service providers and government entities and that may already have purchase commitments from
those end-customers;

increased purchasing power and leverage held by large end-customers in negotiating contractual
arrangements with us;

• more stringent requirements in our support service contracts, including stricter support response times,

and increased penalties for any failure to meet support requirements; and

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longer sales cycles and the associated risk that substantial time and resources may be spent on a
potential end-customer who elects not to purchase our products and services.

Large enterprises, service providers and government entities often undertake a significant evaluation process
that results in a lengthy sales cycle, in some cases over 12 months. Although we have a channel sales model, our
sales representatives typically engage in direct interaction with our distributors and resellers in connection with
sales to larger end-customers. Due to the lengthy nature, the size and scope, and stringent requirements of these

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evaluations, we typically provide evaluation products to these customers. We may spend substantial time, effort
and money in our sales efforts without being successful in producing any sales. If we are unsuccessful in
converting these evaluations into sales, we may experience an increased inventory of used products and
potentially increased write-offs. In addition, product purchases by enterprises, service providers and government
entities are frequently subject to budget constraints, multiple approvals, and unplanned administrative, processing
and other delays. Finally, enterprise, service providers and government entities typically have longer
implementation cycles; require greater product functionality and scalability and a broader range of services,
including design services; demand that vendors take on a larger share of risks; sometimes require acceptance
provisions that can lead to a delay in revenue recognition; and expect greater payment flexibility from vendors.
All these factors can add further risk to business conducted with these customers. If sales expected from a large
end-customer for a particular quarter are not realized in that quarter or at all, our business, operating results and
financial condition could be materially and adversely affected.

The average sales prices of our products may decrease, which may reduce our gross profits.

The average sales prices for our products may decline for a variety of reasons, including competitive pricing
pressures, discounts we offer, a change in our mix of products, anticipation of the introduction of new products or
promotional programs. Competition continues to increase in the market segments in which we participate and we
expect competition to further increase in the future, thereby leading to increased pricing pressures. Larger
competitors with more diverse product offerings may reduce the price of products that compete with ours in
order to promote the sale of other products or may bundle them with other products. Furthermore, we anticipate
that the average sales prices and gross profits for our products will decrease over product life cycles. We cannot
assure you that we will be successful in developing and introducing new offerings with enhanced functionality on
a timely basis, or that our product offerings, if introduced, will enable us to maintain our prices and gross profits
at levels that will allow us to maintain profitability.

Defects or vulnerabilities in our products or services, the failure of our products or services to prevent a virus
or security breach, or misuse of our products could harm our reputation and divert resources.

Because our products and services are complex, they have contained and may contain defects or errors that
are not detected until after their commercial release and deployment by our customers. For example, one of our
high-end product models has been experiencing a defect in limited deployments. Defects or vulnerabilities may
impede or block network traffic or cause our products or services to be vulnerable to electronic break-ins or
cause them to fail to help secure networks. Because the techniques used by computer hackers to access or
sabotage networks change frequently and generally are not recognized until launched against a target, we may be
unable to anticipate these techniques. In addition, defects or errors in our FortiGuard subscription updates or our
FortiGate appliances could result in a failure of our FortiGuard services to effectively update end-customers’
FortiGate appliances and thereby leave customers vulnerable to attacks. Furthermore, our solutions may also fail
to detect or prevent viruses, worms or similar threats due to a number of reasons such as the evolving nature of
such threats and the continual emergence of new threats that we may fail to add to our FortiGuard databases in
time to protect our end-customers’ networks. Our FortiGuard or FortiCare data centers and networks may also
experience technical failures and downtime, and may fail to distribute appropriate updates, or fail to meet the
increased requirements of a growing customer base. Any such technical failure, downtime, or failures in general
may temporarily or permanently expose our end-customers’ networks, leaving their networks unprotected against
the latest security threats.

An actual or perceived security breach or infection of the network of one of our end-customers, regardless
of whether the breach is attributable to the failure of our products or services to prevent the security breach, could
adversely affect the market’s perception of our security products. We may not be able to correct any security
flaws or vulnerabilities promptly, or at all. Our products may also be misused by end-customers or third parties
who obtain access to our products. For example, our products could be used to censor private access to certain
information on the Internet. Such use of our products for censorship could result in negative press coverage and

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negatively affect our reputation, even if we take reasonable measures to prevent any improper shipment of our
products or if our products are provided by an unauthorized third-party. Any defects, errors or vulnerabilities in
our products, or misuse of our products, could result in:

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expenditure of significant financial and product development resources in efforts to analyze, correct,
eliminate or work-around errors or defects or to address and eliminate vulnerabilities;

loss of existing or potential end-customers or channel partners;

delayed or lost revenue;

delay or failure to attain market acceptance;

negative publicity, which will harm our reputation; and

litigation, regulatory inquiries or investigations that may be costly and harm our reputation.

Our business and operations have experienced rapid growth, and if we do not appropriately manage any
future growth, or are unable to improve our systems and processes, our operating results will be negatively
affected.

We have a high volume business that has grown over the last several years. We rely heavily on information

technology systems to help manage critical functions such as order processing, revenue recognition, financial
forecasts and inventory and supply chain management. However, we have been slow to adopt and implement
certain automated functions, like Electronic Data Interchange, which could have a negative impact on our
business. For example, a large part of our order processing relies on the manual processing of emails from our
customers. Combined with the fact that we may receive a majority of our orders in the last few weeks of any
given quarter, a significant interruption in our email service could result in delayed order fulfillment and
decreased revenue for that quarter. To manage any future growth effectively, we must continue to improve and
expand our information technology and financial infrastructure, operating and administrative systems and
controls, and continue to manage headcount, capital and processes in an efficient manner. We may not be able to
successfully implement improvements to these systems and processes in a timely or efficient manner. In addition,
our systems and processes may not prevent or detect all errors, omissions or fraud. Our failure to improve our
systems and processes, or their failure to operate in the intended manner, may result in our inability to manage
the growth of our business and to accurately forecast our revenue, expenses and earnings, or to prevent certain
losses. Our productivity and the quality of our products and services may be adversely affected if we do not
integrate and train our new employees quickly and effectively. Any future growth would add complexity to our
organization and require effective coordination throughout our organization. Failure to manage any future growth
effectively could result in increased costs and harm our results of operations.

If our estimates or judgments relating to our critical accounting policies are based on assumptions that
change or prove to be incorrect, our operating results could fall below expectations of securities analysts and
investors, resulting in a decline in our stock price.

The preparation of financial statements in conformity with generally accepted accounting principles requires

management to make estimates and assumptions that affect the amounts reported in the consolidated financial
statements and accompanying notes. We base our estimates on historical experience and on various other
assumptions that we believe to be reasonable under the circumstances, as provided in “Management’s Discussion
and Analysis of Financial Condition and Results of Operations” in this Form 10-K, the results of which form the
basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from
other sources. Our operating results may be adversely affected if our assumptions change or if actual
circumstances differ from those in our assumptions, which could cause our operating results to fall below the
expectations of securities analysts and investors, resulting in a decline in our stock price. Significant assumptions
and estimates used in preparing our consolidated financial statements include those related to revenue
recognition, stock-based compensation, valuation of inventory, warranty liabilities and accounting for income
taxes.

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We offer retroactive price protection to certain of our major distributors, and if we fail to balance their
inventory with end-customer demand for our products, our allowance for price protection may be inadequate,
which could adversely affect our results of operations.

We provide certain of our major distributors with price protection rights for inventories of our products held

by them. If we reduce the list price of our products, certain distributors receive refunds or credits from us that
reduce the price of such products held in their inventory based upon the new list price. As of December 31, 2009,
we estimated that approximately $1.6 million of our products in our distributors’ inventory were subject to price
protection. Future credits for price protection will depend on the percentage of our price reductions for the
products in inventory and our ability to manage the levels of our major distributors’ inventories. If future price
protection adjustments are higher than expected, our future results of operations could be materially and
adversely affected.

If we are unable to hire, retain and motivate qualified personnel, our business will suffer.

Our future success depends, in part, on our ability to continue to attract and retain highly skilled personnel.

The loss of the services of any of our key personnel, the inability to attract or retain qualified personnel, or delays
in hiring required personnel, particularly in engineering and sales, may seriously harm our business, financial
condition and results of operations. We have experienced turnover in our management-level personnel. None of
our key employees has an employment agreement for a specific term, and any of our employees may terminate
their employment at any time. Our ability to continue to attract and retain highly skilled personnel will be critical
to our future success. Competition for highly skilled personnel is frequently intense, especially in the locations
where we have a substantial presence and need for highly-skilled personnel: the San Francisco Bay Area,
Vancouver, Canada and Beijing, China. A large portion of our employee base is substantially vested in
significant stock option grants, and the ability to exercise those options and sell their stock may result in a larger
than normal turn-over rate. We may not be successful in attracting, assimilating or retaining qualified personnel
to fulfill our current or future needs. Also, to the extent we hire personnel from competitors, we may be subject
to allegations that they have been improperly solicited or divulged proprietary or other confidential information.

We are dependent on the continued services and performance of our senior management, the loss of any of
whom could adversely affect our business, operating results and financial condition.

Our future performance depends on the continued services and continuing contributions of our senior

management to execute on our business plan, and to identify and pursue new opportunities and product
innovations. The loss of services of senior management, particularly Ken Xie, our Co-founder, President and
Chief Executive Officer, Michael Xie, our Co-founder, Vice President of Engineering and Chief Technical
Officer, and Ken Goldman, our Vice President and Chief Financial Officer, could significantly delay or prevent
the achievement of our development and strategic objectives. In addition, key personnel may be distracted by
activities unrelated to our business. The loss of the services, or distraction, of our senior management for any
reason could adversely affect our business, financial condition and results of operations.

If we are unable to establish fair value for any undelivered element of a customer order, revenue relating to
the entire order will be deferred and recognized over future periods. A delay in the recognition of revenue for
a significant portion of our sales in a particular quarter may adversely affect our results of operations.

In the course of our selling efforts, we typically enter into arrangements that require us to deliver a
combination of products and services. We refer to each individual product or service as an “element” of the
overall arrangement. These arrangements typically require us to deliver particular elements in a future period. As
we discuss further in “Management’s Discussion and Analysis of Financial Condition and Results of
Operations—Critical Accounting Policies and Estimates—Revenue Recognition”, if we are unable to determine
the fair value of any undelivered elements, we are required by generally accepted accounting principles, or
GAAP, to defer revenue from the entire arrangement rather than just the undelivered elements. If we are required

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to defer revenue from the entire arrangement for a significant portion of our product sales, our revenue for that
quarter could fall below our expectations or those of securities analysts and investors, adversely affecting our
results of operations and resulting in a decline in our stock price.

Adverse economic conditions or reduced information technology spending may adversely impact our business.

Our business depends on the overall demand for information technology and on the economic health of our

current and prospective customers. In addition, the purchase of our products is often discretionary and may
involve a significant commitment of capital and other resources. We believe the current global economic
downturn may have adversely affected our total revenue in fiscal 2009. Continued weak global economic
conditions, or a reduction in information technology spending even if economic conditions improve, could
adversely impact our business, financial condition and results of operations in a number of ways, including
longer sales cycles, lower prices for our products and services, higher default rates among our distributors,
reduced unit sales and lower or no growth.

Because we depend on several third-party manufacturers to build our products, we are susceptible to
manufacturing delays that could prevent us from shipping customer orders on time, if at all, and may result in
the loss of sales and customers.

We outsource the manufacturing of our security appliance products to a variety of contract manufacturing

partners and original design manufacturing partners.

Our reliance on our third-party manufacturers reduces our control over the manufacturing process, exposing

us to risks, including reduced control over quality assurance, product costs and product supply. Any
manufacturing disruption by our third-party manufacturers could impair our ability to fulfill orders. If we are
unable to manage our relationships with these third-party manufacturers effectively, or if these third-party
manufacturers experience delays, disruptions, capacity constraints or quality control problems in their
manufacturing operations, or fail to meet our future requirements for timely delivery, our ability to ship products
to our customers could be impaired and our business would be seriously harmed.

These manufacturers fulfill our supply requirements on the basis of individual purchase orders. We have no

long-term contracts or arrangements with certain of our third-party manufacturers that guarantee capacity, the
continuation of particular payment terms or the extension of credit limits. Accordingly, they are not obligated to
continue to fulfill our supply requirements, and the prices we are charged for manufacturing services could be
increased on short notice. If we are required to change third-party manufacturers, our ability to meet our
scheduled product deliveries to our customers would be adversely affected, which could cause the loss of sales
and existing or potential customers, delayed revenue or an increase in our costs which could adversely affect our
gross margins. Our individual product lines are generally manufactured by only one manufacturing partner. Any
production interruptions for any reason, such as a natural disaster, epidemic, capacity shortages, or quality
problems, at one of our manufacturing partners would severely affect sales of our product lines manufactured by
that manufacturing partner.

Our proprietary FortiASIC, which is the key to the performance of our appliances, is fabricated by contract

manufacturers in foundries operated by UMC and Taiwan Semiconductor Manufacturing Corporation, or
TSMC. Faraday (using UMC’s foundry) and K-Micro (using TSMC’s foundry) manufacture our ASICs on a
purchase order basis, and these foundries do not guarantee any capacity and could reject orders from either
Faraday or K-Micro or try to increase pricing. Accordingly, the foundries are not obligated to continue to fulfill
our supply requirements, and due to the long lead time that a new foundry would require, we could suffer
temporary or long term inventory shortages of our FortiASIC as well as increased costs. Our suppliers may also
prioritize orders by other companies that order higher volumes of products. If any of these suppliers materially
delays its supply of ASICs or specific product models to us, or requires us to find an alternate supplier and we are
not able to do so on a timely and reasonable basis, or if these foundries materially increase their prices for
fabrication of our ASICs or specific product models, our business would be harmed.

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In addition, our reliance on third-party manufacturers and foundries limits our control over environmental

regulatory requirements such as the hazardous substance content of our products and therefore our ability to
ensure compliance with the EU RoHS and other similar laws. See “If we fail to comply with environmental
requirements, our business, financial condition, operating results and reputation could be adversely affected” for
information on the effects of the failure to comply with these laws.

Because some of the key components in our products come from limited sources of supply, we are susceptible
to supply shortages or supply changes, which could disrupt or delay our scheduled product deliveries to our
customers and may result in the loss of sales and customers.

We and our contract manufacturers currently purchase several key parts and components used in the
manufacture of our products from limited sources of supply. We are therefore subject to the risk of shortages in
the supply of these components and the risk that component suppliers discontinue or modify components used in
our products. We have faced component shortages in the past. Certain of our limited source components for
particular appliances and suppliers of those components include: specific types of central processing units from
Intel Corporation, Advanced Micro Devices, Inc., RMI Corporation and VIA Technologies, Inc. and network
chips from Broadcom Corporation, Marvell Technology Group Ltd. and Intel. The introduction by component
suppliers of new versions of their products, particularly if not anticipated by us or our contract manufacturers,
could require us to expend significant resources to incorporate these new components into our products. In
addition, if these suppliers were to discontinue production of a necessary part or component, we would be
required to expend significant resources and time in locating and integrating replacement parts or components
from another vendor. Qualifying additional suppliers for limited source parts or components can be time-
consuming and expensive.

Our manufacturing partners have experienced increasing lead times for the purchase of components
incorporated into our products. Our reliance on a limited number of suppliers involves several additional risks,
including:

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a potential inability to obtain an adequate supply of required parts or components when required;

financial or other difficulties faced by our suppliers;

infringement or misappropriation of our intellectual property;

price increases;

failure of a component to meet environmental or other regulatory requirements;

failure to meet delivery obligations in a timely fashion; and

failure in component quality.

The occurrence of any of these would be disruptive to us and could seriously harm our business. Any
interruption or delay in the supply of any of these parts or components, or the inability to obtain these parts or
components from alternate sources at acceptable prices and within a reasonable amount of time, would harm our
ability to meet our scheduled product deliveries to our distributors, resellers and end-customers. This could harm
our relationships with our channel partners and end-customers and could cause delays in shipment of our
products and adversely affect our results of operations.

We are exposed to fluctuations in currency exchange rates, which could negatively affect our financial
condition and results of operations.

Our sales contracts are primarily denominated in U.S. dollars and therefore substantially all of our revenue
is not subject to foreign currency risk. However, a strengthening of the U.S. dollar could increase the real cost of
our products to our customers outside of the United States, which could adversely affect our financial condition
and results of operations. In addition, a majority of our operating expenses were incurred outside the United

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States, are denominated in foreign currencies and are subject to fluctuations due to changes in foreign currency
exchange rates, particularly changes in the Euro and Canadian dollar. Although we have begun to hedge currency
exposures relating to certain balance sheet accounts, we do not currently hedge currency exposures relating to
operating expenses incurred outside of the United States, but we may do so in the future. If our attempts to hedge
against these risks are not successful, our financial condition and results of operations could be adversely
affected.

We generate a majority of revenue from sales to distributors, resellers and end-customers outside of the
United States, and we are therefore subject to a number of risks associated with international sales and
operations.

We market and sell our products throughout the world and have established sales offices in many parts of
the world. Therefore, we are subject to risks associated with having worldwide operations. We are also subject to
a number of risks typically associated with international sales and operations, including:

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economic or political instability in foreign markets;

greater difficulty in enforcing contracts, accounts receivable collection and longer collection periods;

changes in regulatory requirements;

difficulties and costs of staffing and managing foreign operations;

the uncertainty of protection for intellectual property rights in some countries;

costs of compliance with foreign laws and regulations and the risks and costs of non-compliance with
such laws and regulations;

costs of complying with U.S. laws and regulations for foreign operations, including the Foreign
Corrupt Practices Act, import and export control laws, tariffs, trade barriers, economic sanctions and

other regulatory or contractual limitations on our ability to sell our products in certain foreign markets,
and the risks and costs of non-compliance;

heightened risks of unfair or corrupt business practices in certain geographies and of improper or
fraudulent sales arrangements that may impact financial results and result in restatements of financial
statements and irregularities in financial statements;

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the potential for political unrest, terrorism, hostilities or war;

• management communication and integration problems resulting from cultural differences and

geographic dispersion; and

• multiple and possibly overlapping tax structures.

Product and service sales may be subject to foreign governmental regulations, which vary substantially from

country to country. Further, we may be unable to keep up-to-date with changes in government requirements as
they change from time to time. Failure to comply with these regulations could result in adverse affects to our
business. In many foreign countries it is common for others to engage in business practices that are prohibited by
our internal policies and procedures or U.S. regulations applicable to us. Although we implemented policies and
procedures designed to ensure compliance with these laws and policies, there can be no assurance that all of our
employees, contractors, channel partners and agents will comply with these laws and policies. Violations of laws
or key control policies by our employees, contractors, channel partners or agents could result in delays in revenue
recognition, financial reporting misstatements, fines, penalties, or the prohibition of the importation or
exportation of our products and services and could have a material adverse effect on our business and results of
operations.

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We are subject to governmental export and import controls that could subject us to liability or impair our
ability to compete in international markets.

Certain of our products are subject to U.S. export controls and may be exported outside the U.S. only with

the required export license or through an export license exception, because we incorporate encryption technology
into our products. If we were to fail to comply with U.S. export licensing, U.S. Customs regulations, U.S.
economic sanctions and other laws we could be subject to substantial civil and criminal penalties, including fines
for the company and incarceration for responsible employees and managers, and the possible loss of export or
import privileges. In addition, if our channel partners fail to obtain appropriate import, export or re-export
licenses or permits, we may also be adversely affected, through reputational harm and penalties. Obtaining the
necessary export license for a particular sale may be time-consuming, and may result in the delay or loss of sales
opportunities.

Furthermore, U.S. export control laws and economic sanctions prohibit the shipment of certain products to
U.S. embargoed or sanctioned countries, governments and persons. Even though we take precautions to prevent
our product from being shipped to U.S. sanctions targets, our products could be shipped to those targets by our
channel partners, despite such precautions. Any such shipment could have negative consequences including
government investigations and penalties and in reputational harm. In addition, various countries regulate the
import of certain encryption technology, including import permitting/licensing requirements, and have enacted
laws that could limit our ability to distribute our products or could limit our customers’ ability to implement our
products in those countries. Changes in our products or changes in export and import regulations may create
delays in the introduction of our products in international markets, prevent our customers with international
operations from deploying our products globally or, in some cases, prevent the export or import of our products
to certain countries, governments or persons altogether. Any change in export or import regulations, economic
sanctions or related legislation, shift in the enforcement or scope of existing regulations, or change in the
countries, governments, persons or technologies targeted by such regulations, could result in decreased use of our
products by, or in our decreased ability to export or sell our products to, existing or potential customers with
international operations. Any decreased use of our products or limitation on our ability to export or sell our
products would likely adversely affect our business, financial condition and results of operations.

If we fail to comply with environmental requirements, our business, financial condition, operating results and
reputation could be adversely affected.

We are subject to various environmental laws and regulations including laws governing the hazardous

material content of our products and laws relating to the recycling of electrical and electronic equipment. The
laws and regulations to which we are subject include the European Union, or EU, RoHS and the EU Waste
Electrical and Electronic Equipment (WEEE) Directive as well as the implementing legislation of the EU
member states. Similar laws and regulations have been passed or are pending in China, South Korea, Norway and
Japan and may be enacted in other regions, including in the United States and we are, or may in the future be,
subject to these laws and regulations.

The EU RoHS and the similar laws of other jurisdictions ban the use of certain hazardous materials such as

lead, mercury and cadmium in the manufacture of electrical equipment, including our products. We have
incurred costs to comply with these laws, including research and development costs, costs associated with
assuring the supply of compliant components and costs associated with writing off noncompliant inventory. We
expect to incur more of these costs in the future. With respect to the EU RoHS, we and our competitors rely on
an exemption for lead in network infrastructure equipment. It is possible this exemption will be revoked in the
near future. If revoked, if there are other changes to these laws (or their interpretation) or if new similar laws are
passed in other jurisdictions, we may be required to reengineer our products to use components compatible with
these regulations. This reengineering and component substitution could result in additional costs to us or disrupt
our operations or logistics.

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The EU has also adopted the WEEE Directive, which requires electronic goods producers to be responsible

for the collection, recycling and treatment of such products. Although currently our EU International channel
partners are responsible for the requirements of this directive as the importer of record in most of the European
countries in which we sell our products, changes in interpretation of the regulations may cause us to incur costs
or have additional regulatory requirements in the future to meet in order to comply with this directive, or with
any similar laws adopted in other jurisdictions.

Our failure to comply with these and future similar laws could result in reduced sales of our products,

substantial product inventory write-offs, reputational damage, penalties and other sanctions.

A portion of our revenue is generated by sales to government entities, which are subject to a number of
challenges and risks.

Sales to U.S. and foreign federal, state and local governmental agency end-customers have accounted for a
portion of our revenue in past periods, and we may in the future increase sales to government entities. Sales into
government entities are subject to a number of risks. Selling to government entities can be highly competitive,
expensive and time consuming, often requiring significant upfront time and expense without any assurance that
we will win a sale. Government demand and payment for our products and services may be impacted by public
sector budgetary cycles and funding authorizations, with funding reductions or delays adversely affecting public
sector demand for our products. Most of our sales to government entities have been made indirectly through our
distribution channel. Government entities may have contractual or other legal rights to terminate contracts with
our distributors and resellers for convenience or due to a default, and any such termination may adversely impact
our future results of operations. For example, if the distributor receives a significant portion of its revenue from
sales to such governmental entity, the financial health of the distributor could be substantially harmed, which
could negatively affect our future sales to such distributor. Governments routinely investigate and audit
government contractors’ administrative processes, and, any unfavorable audit could result in the government
refusing to continue buying our products and services, a reduction of revenue or fines or civil or criminal liability
if the audit uncovers improper or illegal activities. Any such penalties could adversely impact our results of
operations in a material way. Finally, for purchases by the U.S. government, the government may require certain
products to be manufactured in the United States and other high cost manufacturing locations, and we may not
manufacture all products in locations that meet the requirements of the U.S. government.

False detection of viruses or security breaches or false identification of spam or spyware could adversely affect
our business.

Our antivirus and our intrusion prevention services may falsely detect viruses or other threats that do not
actually exist. This risk is heightened by the inclusion of a “heuristics” feature in our products, which attempts to
identify viruses and other threats not based on any known signatures but based on characteristics or anomalies
that may indicate that a particular item is a threat. When our end-customers enable the heuristics feature in our
products, the risk of falsely identifying viruses and other threats significantly increases. These false positives,
while typical in the industry, may impair the perceived reliability of our products and may therefore adversely
impact market acceptance of our products. Also, our antispam and antispyware services may falsely identify
emails or programs as unwanted spam or potentially unwanted programs, or alternatively fail to properly identify
unwanted emails or programs, particularly as spam emails or spyware are often designed to circumvent antispam
or spyware products. Parties whose emails or programs are blocked by our products may seek redress against us
for labeling them as spammers or spyware, or for interfering with their business. In addition, false identification
of emails or programs as unwanted spam or potentially unwanted programs may reduce the adoption of our
products. If our system restricts important files or applications based on falsely identifying them as malware or
some other item that should be restricted, this could adversely affect end-customers’ systems and cause material
system failures. Any such false identification of important files or applications could result in negative publicity,
loss of end-customers and sales, increased costs to remedy any problem, and costly litigation.

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If our internal network system is compromised by computer hackers, public perception of our products and
services will be harmed.

We will not succeed unless the marketplace is confident that we provide effective network security
protection. Because we provide network security products, we may be a more attractive target for attacks by
computer hackers. Although we have not experienced significant damages from unauthorized access by a third-
party of our internal network, if an actual or perceived breach of network security occurs in our internal systems
it could adversely affect the market perception of our products and services. In addition, such a security breach
could impair our ability to operate our business, including our ability to provide subscription and support services
to our end-customers. If this happens, our revenue could decline and our business could suffer.

Our ability to sell our products is dependent on the quality of our technical support services, and our failure to
offer high quality technical support services would have a material adverse effect on our sales and results of
operations.

Once our products are deployed within our end-customers’ networks, our end-customers depend on our
technical support services, as well as the support of our channel partners, to resolve any issues relating to our
products. If we or our channel partners do not effectively assist our customers in deploying our products, succeed
in helping our customers quickly resolve post-deployment issues, and provide effective ongoing support, our
ability to sell additional products and services to existing customers would be adversely affected and our
reputation with potential customers could be damaged. Many enterprise, service provider and government entity
end-customers require higher levels of support than smaller end-customers. If we fail to meet the requirements of
the larger end-customers, it may be more difficult to execute on our strategy to increase our penetration with
larger end-customers. As a result, our failure to maintain high quality support services would have a material
adverse effect on our business, financial condition and results of operations.

Changes in our provision for income taxes or adverse outcomes resulting from examination of our income tax
returns could adversely affect our results.

Our provision for income taxes is subject to volatility and could be adversely affected by:

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our earnings being lower than anticipated in countries that have lower tax rates and higher than
anticipated in countries that have higher tax rates;

changes in the valuation of our deferred tax assets and liabilities;

expiration of or lapses in the research and development tax credit laws;

transfer pricing adjustments including the effect of acquisitions on our intercompany research and
development cost sharing arrangement and legal structure;

tax effects of nondeductible compensation;

tax costs related to intercompany realignments;

changes in accounting principles; or

changes in tax laws and regulations including possible changes in the United States to the taxation of
earnings of our foreign subsidiaries, and the deductibility of expenses attributable to foreign income, or
the foreign tax credit rules.

Significant judgment is required to determine the recognition and measurement attribute prescribed in
Accounting Standards Codification (ASC) 740-10 (formerly referred to as Financial Accounting Standards
Board (FASB) Interpretation No. 48, Accounting for Uncertainty in Income Taxes—an interpretation of FASB
No. 109 (FIN 48)). In addition, ASC 740-10 applies to all income tax positions, including the potential recovery
of previously paid taxes, which if settled unfavorably could adversely impact our provision for income taxes or

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additional paid-in capital. Further, as a result of certain of our ongoing employment and capital investment
actions and commitments, our income in certain countries is subject to reduced tax rates and in some cases is
wholly exempt from tax. Our failure to meet these commitments could adversely impact our provision for
income taxes. In addition, we are subject to the continuous examination of our income tax returns by the Internal
Revenue Service and other tax authorities. We regularly assess the likelihood of adverse outcomes resulting from
these examinations to determine the adequacy of our provision for income taxes. There can be no assurance that
the outcomes from these continuous examinations will not have an adverse effect on our results of operations.

Although we released our entire valuation allowance in the year ended December 31, 2009, we may in the

future be required to establish a new valuation allowance. We will continue to assess the need for a valuation
allowance on the deferred tax asset by evaluating both positive and negative evidence that may exist.

Forecasting our estimated annual effective tax rate is complex and subject to uncertainty, and there may be
material differences between our forecasted and actual tax rates.

Forecasts of our income tax position and effective tax rate are complex and subject to uncertainty because

our income tax position for each year combines the effects of a mix of profits earned and losses incurred by us in
various tax jurisdictions with a broad range of income tax rates, as well as changes in the valuation of deferred
tax assets and liabilities, the impact of various accounting rules and changes to these rules and tax laws, the
results of examinations by various tax authorities, and the impact of any acquisition, business combination or
other reorganization or financing transaction. To forecast our global tax rate, we estimate our pre-tax profits and
losses by jurisdiction and forecast our tax expense by jurisdiction. If the mix of profits and losses, our ability to
use tax credits, or effective tax rates by jurisdiction is different than those estimated, our actual tax rate could be
materially different than forecasted, which could have a material impact on our results of business, financial
condition and results of operations.

As a multinational corporation, we conduct our business in many countries and are subject to taxation in

many jurisdictions. The taxation of our business is subject to the application of multiple and sometimes
conflicting tax laws and regulations as well as multinational tax conventions. Our effective tax rate is highly
dependent upon the geographic distribution of our worldwide earnings or losses, the tax regulations and tax
holidays in each geographic region, the availability of tax credits and carryforwards, and the effectiveness of our
tax planning strategies. The application of tax laws and regulations is subject to legal and factual interpretation,
judgment and uncertainty. Tax laws themselves are subject to change as a result of changes in fiscal policy,
changes in legislation, and the evolution of regulations and court rulings. Consequently, taxing authorities may
impose tax assessments or judgments against us that could materially impact our tax liability and/or our effective
income tax rate.

In addition, we may be subject to examination of our income tax returns by the Internal Revenue Service
and other tax authorities. If tax authorities challenge the relative mix of U.S. and international income, our future
effective income tax rates could be adversely affected. While we regularly assess the likelihood of adverse
outcomes from such examinations and the adequacy of our provision for income taxes, there can be no assurance
that such provision is sufficient and that a determination by a tax authority will not have an adverse effect on our
business, financial condition and results of operations.

Our inability to acquire and integrate other businesses, products or technologies could seriously harm our
competitive position.

In order to remain competitive, we may seek to acquire additional businesses, products, or technologies and

intellectual property, such as patents. If we identify an appropriate acquisition candidate, we may not be
successful in negotiating the terms of the acquisition, financing the acquisition, or effectively integrating the
acquired business, product, technology or intellectual property into our existing business and operations. We may
have difficulty incorporating acquired technologies, intellectual property or products with our existing product

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lines and maintaining uniform standards, controls, procedures and policies. Our due diligence may fail to identify
all of the problems, liabilities or other shortcomings or challenges of an acquired business, product or
technology, including issues with intellectual property, product quality or product architecture, regulatory
compliance practices, revenue recognition or other accounting practices or employee or customer issues. In
addition, any acquisitions we are able to complete may not be accretive to earnings and may not result in any
synergies or other benefits we had expected to achieve, which could result in write-offs that could be substantial.
For example, as discussed further in Notes 5 and 6 to our consolidated financial statements, in the past we have
written off certain assets in connection with our purchases of assets from certain companies. Further, completing
a potential acquisition and integrating acquired businesses, products, technologies or intellectual property will
significantly divert management time and resources.

Our business is subject to the risks of warranty claims, product returns, product liability and product defects.

Our products are very complex and, despite testing prior to their release, have contained and may contain
undetected defects or errors, especially when first introduced or when new versions are released. For example,
one of our high-end product models has been experiencing a defect in limited deployments. Product errors have
affected the performance of our products and could delay the development or release of new products or new
versions of products, adversely affect our reputation and our end-customers’ willingness to buy products from us,
and adversely affect market acceptance or perception of our products. Any such errors or delays in releasing new
products or new versions of products or allegations of unsatisfactory performance could cause us to lose revenue
or market share, increase our service costs, cause us to incur substantial costs in redesigning the products, cause
us to lose significant end-customers, subject us to liability for damages and divert our resources from other tasks,
any one of which could materially and adversely affect our business, results of operations and financial
condition. Our products must successfully interoperate with products from other vendors. As a result, when
problems occur in a network, it may be difficult to identify the sources of these problems. The occurrence of
hardware and software errors, whether or not caused by our products, could delay or reduce market acceptance of
our products, and have an adverse effect on our business and financial performance, and any necessary revisions
may cause us to incur significant expenses. The occurrence of any such problems could harm our business,
financial condition and results of operations.

Although we have limitation of liability provisions in our standard terms and conditions of sale, they may

not fully or effectively protect us from claims as a result of federal, state or local laws or ordinances or
unfavorable judicial decisions in the United States or other countries. The sale and support of our products also
entail the risk of product liability claims. We maintain insurance to protect against certain claims associated with
the use of our products, but our insurance coverage may not adequately cover any claim asserted against us. In
addition, even claims that ultimately are unsuccessful could result in our expenditure of funds in litigation and
divert management’s time and other resources.

Our business is subject to the risks of earthquakes, fire, power outages, floods and other catastrophic events,
and to interruption by manmade problems such as terrorism.

A significant natural disaster, such as an earthquake, fire or a flood, or a significant power outage could

have a material adverse impact on our business, operating results and financial condition. Our corporate
headquarters are located in the San Francisco Bay Area, a region known for seismic activity. In addition, natural
disasters could affect our manufacturing vendors or logistics providers’ ability to perform services such as
manufacturing products on a timely basis and assisting with shipments on a timely basis. For example, our
primary international logistics provider is located in Taiwan which is an area known for typhoons. In the event
our or our service providers’ information technology systems or manufacturing or logistics abilities are hindered
by any of the events discussed above, shipments could be delayed, resulting in missing financial targets, such as
revenue and shipment targets, for a particular quarter. In addition, acts of terrorism could cause disruptions in our
business or the business of our manufacturers, logistics providers, partners, or end-customers or the economy as a
whole. Given our typical concentration of sales at each quarter end, any disruption in the business of our

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manufacturers, logistics providers, partners or end-customers that impacts sales at the end of our quarter could
have a significant adverse impact on our quarterly results. All of the aforementioned risks may be augmented if
the disaster recovery plans for us and our suppliers prove to be inadequate. To the extent that any of the above
results in delays or cancellations of customer orders, or the delay in the manufacture, deployment or shipment of
our products, our business, financial condition and results of operations would be adversely affected.

Risks Related to Our Industry

The network security market is rapidly evolving and the complex technology incorporated in our products
makes them difficult to develop. If we do not accurately predict, prepare for and respond promptly to
technological and market developments and changing end-customer needs, our competitive position and
prospects will be harmed.

The network security market is expected to continue to evolve rapidly. Moreover, many of our

end-customers operate in markets characterized by rapidly changing technologies and business plans, which
require them to add numerous network access points and adapt increasingly complex enterprise networks,
incorporating a variety of hardware, software applications, operating systems and networking protocols. In
addition, computer hackers and others who try to attack networks employ increasingly sophisticated techniques
to gain access to and attack systems and networks. The technology in our products is especially complex because
it needs to effectively identify and respond to new and increasingly sophisticated methods of attack, while
minimizing the impact on network performance. Additionally, some of our new products and enhancements may
require us to develop new hardware architectures and ASICs that involve complex, expensive and time
consuming research and development processes. Although the market expects rapid introduction of new products
or product enhancements to respond to new threats, the development of these products is difficult and the
timetable for commercial release and availability is uncertain and there can be long time periods between releases
and availability of new products. We have in the past and may in the future experience unanticipated delays in
the availability of new products and services and fail to meet previously announced timetables for such
availability. For example, in the first quarter of fiscal 2009, we released a new model within our FortiGate
product line and, after its initial release, we detected errors in the product that required us to redesign certain
aspects of the product which delayed the availability of the product for one quarter and delayed our recognition
of revenue from large orders that included such product until the following quarter when the product became
available. If we do not quickly respond to the rapidly changing and rigorous needs of our end-customers by
developing and releasing and making available on a timely basis new products and services or enhancements that
can respond adequately to new security threats, our competitive position and business prospects will be harmed.

Our URL database for our Web filtering service may fail to keep pace with the rapid growth of URLs and may
not categorize websites in accordance with our end-customers’ expectations.

The success of our Web filtering service depends on the breadth and accuracy of our URL database.
Although our URL database currently catalogs millions of unique URLs, it contains only a portion of the URLs
for all of the websites that are available on the Internet. In addition, the total number of URLs and software
applications is growing rapidly, and we expect this rapid growth to continue in the future. Accordingly, we must
identify and categorize content for our security risk categories at an extremely rapid rate. Our database and
technologies may not be able to keep pace with the growth in the number of websites, especially the growing
amount of content utilizing foreign languages and the increasing sophistication of malicious code and the
delivery mechanisms associated with spyware, phishing and other hazards associated with the Internet. Further,
the ongoing evolution of the Internet and computing environments will require us to continually improve the
functionality, features and reliability of our Web filtering function. Any failure of our databases to keep pace
with the rapid growth and technological change of the Internet will impair the market acceptance of our products,
which in turn will harm our business, financial condition and results of operations.

In addition, our Web filtering service may not be successful in accurately categorizing Internet and

application content to meet our end-customers’ expectations. We rely upon a combination of automated filtering

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technology and human review to categorize websites and software applications in our proprietary databases. Our
end-customers may not agree with our determinations that particular URLs should be included or not included in
specific categories of our databases. In addition, it is possible that our filtering processes may place material that
is objectionable or that presents a security risk in categories that are generally unrestricted by our users’ Internet
and computer access policies, which could result in such material not being blocked from the network.
Conversely, we may miscategorize websites such that access is denied to websites containing information that is
important or valuable to our customers. Any miscategorization could result in customer dissatisfaction and harm
our reputation. Any failure to effectively categorize and filter websites according to our end-customers’ and
channel partners’ expectations will impair the growth of our business.

If our new products and product enhancements do not achieve sufficient market acceptance, our results of
operations and competitive position will suffer.

We spend substantial amounts of time and money to research and develop new products and enhanced

versions of our existing products to incorporate additional features, improved functionality or other
enhancements in order to meet our customers’ rapidly evolving demands for network security in our highly
competitive industry. When we develop a new product or an enhanced version of an existing product, we
typically incur expenses and expend resources upfront to market, promote and sell the new offering. Therefore,
when we develop and introduce new or enhanced products, they must achieve high levels of market acceptance
in order to justify the amount of our investment in developing and bringing them to market.

Our new products or product enhancements could fail to attain sufficient market acceptance for many

reasons, including:

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delays in releasing our new products or enhancements to the market;

failure to accurately predict market demand in terms of product functionality and to supply products
that meet this demand in a timely fashion;

inability to interoperate effectively with the networks or applications of our prospective end-customers;

inability to protect against new types of attacks or techniques used by hackers;

defects, errors or failures;

negative publicity about their performance or effectiveness;

introduction or anticipated introduction of competing products by our competitors;

poor business conditions for our end-customers, causing them to delay IT purchases;

easing of regulatory requirements around security; and

reluctance of customers to purchase products incorporating open source software.

If our new products or enhancements do not achieve adequate acceptance in the market, our competitive

position will be impaired, our revenue will be diminished and the effect on our operating results may be
particularly acute because of the significant research, development, marketing, sales and other expenses we
incurred in connection with the new product or enhancement.

Unless we develop better market awareness of our company and our products, our revenue may not continue
to grow.

We are a relatively new entrant in the network security market and we believe that we have not yet

established sufficient market awareness of our participation in that market. Market awareness of our capabilities
and products is essential to our continued growth and our success in all of our markets, particularly for the large
enterprise, service provider and government entities markets. If our marketing programs are not successful in
creating market awareness of our company and products, our business, financial condition and results of
operations will be adversely affected, and we will not be able to achieve sustained growth.

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Demand for Unified Threat Management products may be limited by market perception that UTM products
are inferior to network security solutions from multiple vendors.

Sales of most of our products depend on increased demand for UTM products. If the UTM market fails to

grow as we anticipate, our business will be seriously harmed. Target customers may view UTM “all-in-one”
solutions as inferior to security solutions from multiple vendors because of, among other things, their perception
that UTM products provide security functions from only a single vendor and do not allow users to choose
“best-of-breed” defenses from among the wide range of dedicated security applications available. Target
customers might also perceive that, by combining multiple security functions into a single platform, UTM
solutions create a “single point of failure” in their networks, which means that an error, vulnerability or failure of
the UTM product may place the entire network at risk. In addition, the market perception that UTM solutions
may be suitable only for small and medium sized businesses because UTM lacks the performance capabilities
and functionality of other solutions may harm our sales to large enterprise, service provider, and government
entity end-customers. If the foregoing concerns and perceptions become prevalent, even if there is no factual
basis for these concerns and perceptions, or if other issues arise with the UTM market in general, demand for
UTM products could be severely limited, which would limit our growth and harm our business, financial
condition and results of operations. Further a successful and publicized targeted attack against us or another well
known UTM vendor exposing a “single point of failure” could significantly increase these concerns and
perceptions and may harm our business and results of operations.

We face intense competition in our market, especially from larger, better-known companies, and we may lack
sufficient financial or other resources to maintain or improve our competitive position.

The market for network security products is intensely competitive and we expect competition to intensify in

the future. Our competitors include networking companies such as Cisco Systems, Inc. and Juniper Networks,
Inc., security vendors such as Check Point Software Technologies Ltd., McAfee, Inc., and SonicWALL, Inc., and
other point solution security vendors.

Many of our existing and potential competitors enjoy substantial competitive advantages such as:

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greater name recognition and longer operating histories;

larger sales and marketing budgets and resources;

broader distribution and established relationships with distribution partners and end-customers;

access to larger customer bases;

greater customer support resources;

greater resources to make acquisitions;

lower labor and development costs; and

substantially greater financial, technical and other resources.

In addition, some of our larger competitors have substantially broader product offerings and leverage their

relationships based on other products or incorporate functionality into existing products in a manner that
discourages users from purchasing our products. These larger competitors often have broader product lines and
market focus, are in a better position to withstand any significant reduction in capital spending by end-customers
in these markets, and will therefore not be as susceptible to downturns in a particular market. Also, many of our
smaller competitors that specialize in providing protection from a single type of network security threat are often
able to deliver these specialized network security products to the market more quickly than we can. Some of our
smaller competitors are using third-party chips designed to accelerate performance. Conditions in our markets
could change rapidly and significantly as a result of technological advancements or continuing market
consolidation. Our current and potential competitors may also establish cooperative relationships among

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themselves or with third parties that may further enhance their resources. In addition, current or potential
competitors may be acquired by third parties with greater available resources, such as Juniper’s acquisition of
NetScreen Technologies, Inc., McAfee’s acquisition of Secure Computing Corporation and Check Point’s
acquisition of Nokia’s security appliance business. As a result of such acquisitions, our current or potential
competitors might be able to adapt more quickly to new technologies and customer needs, devote greater
resources to the promotion or sale of their products and services, initiate or withstand substantial price
competition, take advantage of acquisition or other opportunities more readily or develop and expand their
product and service offerings more quickly than we do. In addition, our competitors may bundle products and
services competitive with ours with other products and services. Customers may accept these bundled products
and services rather than separately purchasing our products and services. Due to budget constraints or economic
downturns, organizations may be more willing to incrementally add solutions to their existing network security
infrastructure from competitors than to replace it with our solutions. These competitive pressures in our market
or our failure to compete effectively may result in price reductions, fewer customer orders, reduced revenue and
gross margins and loss of market share.

If functionality similar to that offered by our products is incorporated into existing network infrastructure
products, organizations may decide against adding our appliances to their network, which would have an
adverse effect on our business.

Large, well-established providers of networking equipment such as Cisco Systems, Inc. and Juniper
Networks, Inc. offer, and may continue to introduce, network security features that compete with our products,
either in stand-alone security products or as additional features in their network infrastructure products. The
inclusion of, or the announcement of an intent to include, functionality perceived to be similar to that offered by
our security solutions in networking products that are already generally accepted as necessary components of
network architecture may have an adverse effect on our ability to market and sell our products. Furthermore,
even if the functionality offered by network infrastructure providers is more limited than our products, a
significant number of customers may elect to accept such limited functionality in lieu of adding appliances from
an additional vendor such as us. Many organizations have invested substantial personnel and financial resources
to design and operate their networks and have established deep relationships with other providers of networking
products, which may make them reluctant to add new components to their networks, particularly from other
vendors such as us. In addition, an organization’s existing vendors or new vendors with a broad product offering
may be able to offer concessions that we are not able to match because we currently offer only network security
products and have fewer resources than many of our competitors. If organizations are reluctant to add additional
network infrastructure from new vendors or otherwise decide to work with their existing vendors, our business,
financial condition and results of operations will be adversely affected.

Risks Related to Intellectual Property

Our proprietary rights may be difficult to enforce, which could enable others to copy or use aspects of our
products without compensating us.

We rely primarily on patent, trademark, copyright and trade secrets laws, confidentiality procedures and
contractual provisions to protect our technology. We purchased most of our issued U.S. patents and many of our
pending U.S. patent applications from other entities. Valid patents may not issue from our pending applications,
and the claims eventually allowed on any patents may not be sufficiently broad to protect our technology or
products. Any issued patents may be challenged, invalidated or circumvented, and any rights granted under these
patents may not actually provide adequate defensive protection or competitive advantages to us. Patent
applications in the United States are typically not published until 18 months after filing, or, in some cases, not at
all, and publications of discoveries in industry-related literature lag behind actual discoveries. We cannot be
certain that we were the first to make the inventions claimed in our pending patent applications or that we were
the first to file for patent protection. Additionally, the process of obtaining patent protection is expensive and
time-consuming, and we may not be able to prosecute all necessary or desirable patent applications at a

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reasonable cost or in a timely manner. In addition, recent changes to the patent laws in the United States may
bring into question the validity of certain software patents. As a result, we may not be able to obtain adequate
patent protection or effectively enforce our issued patents.

Despite our efforts to protect our proprietary rights, unauthorized parties may attempt to copy aspects of our

products or obtain and use information that we regard as proprietary. We generally enter into confidentiality or
license agreements with our employees, consultants, vendors and customers, and generally limit access to and
distribution of our proprietary information. However, we cannot assure you that the steps taken by us will prevent
misappropriation of our technology. Policing unauthorized use of our technology or products is difficult. In
addition, the laws of some foreign countries do not protect our proprietary rights to as great an extent as the laws
of the United States, and many foreign countries do not enforce these laws as diligently as government agencies
and private parties in the United States. From time-to-time, legal action by us may be necessary to enforce our
patents and other intellectual property rights, to protect our trade secrets, to determine the validity and scope of
the proprietary rights of others or to defend against claims of infringement or invalidity. Such litigation could
result in substantial costs and diversion of resources and could negatively affect our business, operating results
and financial condition. If we are unable to protect our proprietary rights (including aspects of our software and
products protected other than by patent rights), we may find ourselves at a competitive disadvantage to others
who need not incur the additional expense, time and effort required to create the innovative products that have
enabled us to be successful to date.

Our products contain third-party open source software components, and failure to comply with the terms of
the underlying open source software licenses could restrict our ability to sell our products.

Our products contain software modules licensed to us by third-party authors under “open source” licenses,

including the GNU Public License (GPL), the GNU Lesser Public License (LGPL), the BSD License, the Apache
License and others. From time-to-time, there have been claims against companies that distribute or use open
source software in their products and services, asserting that open source software infringes the claimants’
intellectual property rights. We could be subject to suits by parties claiming infringement of intellectual property
rights in what we believe to be licensed open source software. Use and distribution of open source software may
entail greater risks than use of third-party commercial software, as open source licensors generally do not provide
warranties or other contractual protections regarding infringement claims or the quality of the code. Some open
source licenses contain requirements that we make available source code for modifications or derivative works
we create based upon the type of open source software we use. If we combine our proprietary software with open
source software in a certain manner, we could, under certain open source licenses, be required to release the
source code of our proprietary software to the public. This would allow our competitors to create similar products
with lower development effort and time and ultimately could result in a loss of product sales for us.

Although we monitor our use of open source software to avoid subjecting our products to conditions we do
not intend, the terms of many open source licenses have not been interpreted by United States courts, and there is
a risk that these licenses could be construed in a way that could impose unanticipated conditions or restrictions
on our ability to commercialize our products. In this event, we could be required to seek licenses from third
parties to continue offering our products, to make generally available, in source code form, our proprietary code,
to re-engineer our products, or to discontinue the sale of our products if re-engineering could not be
accomplished on a timely basis, any of which could adversely affect our business, operating results and financial
condition.

Claims by others that we infringe their proprietary technology could harm our business.

Patent and other intellectual property disputes are common in the network security industry. Third parties

have asserted and may in the future assert claims of infringement of intellectual property rights against us. They
may also assert such claims against our end-customers or channel partners whom we typically indemnify against
claims that our products infringe the intellectual property rights of third parties. As the number of products and

36

competitors in our market increases and overlaps occur, infringement claims may increase. Any claim of
infringement by a third-party, even those without merit, could cause us to incur substantial costs defending
against the claim and could distract our management from our business. In addition, future litigation may involve
patent holding companies or other adverse patent owners who have no relevant product revenue and against
whom our own patents may therefore provide little or no deterrence or protection.

Although third parties may offer a license to their technology, the terms of any offered license may not be
acceptable and the failure to obtain a license or the costs associated with any license could cause our business,
financial condition and results of operations to be materially and adversely affected. In addition, some licenses
may be non-exclusive, and therefore our competitors may have access to the same technology licensed to us.
Alternatively, we may be required to develop non-infringing technology, which could require significant time,
effort and expense and may ultimately not be successful. Furthermore, a successful claimant could secure a
judgment or we may agree to a settlement that prevents us from distributing certain products or performing
certain services or that requires us to pay substantial damages (including treble damages if we are found to have
willfully infringed such claimant’s patents or copyrights), royalties or other fees. Any of these events could
seriously harm our business, financial condition and results of operations.

We have been involved in patent disputes in the past, are currently involved in several patent disputes, and

likely will be involved in additional disputes in the future. In May 2004, Trend Micro Incorporated filed a
complaint against us alleging that we infringed a Trend Micro patent related to antivirus software. The
International Trade Commission, or ITC, subsequently instituted an investigation which resulted in an exclusion
order and a cease and desist order prohibiting us from selling a broad array of our products in the United States.
In January 2006, we settled the lawsuit with Trend Micro, and subsequently the ITC terminated its action and
rescinded the orders. Pursuant to the settlement and license agreement, we initially paid Trend Micro $15.0
million. The settlement and license agreement provides for additional quarterly royalty payments, not expected to
exceed 1% of our total revenue each quarter, through 2015. In November 2008, we filed a complaint against
Trend Micro in the United States District Court for the Northern District of California alleging, among other
claims, that the patents that are the basis for the ongoing royalty payments are invalid and consequently that we
have no contractual obligation to pay the royalties. Trend Micro moved to dismiss the case, and, in June 2009,
the court dismissed the case without prejudice on procedural grounds, and we appealed the dismissal in July
2009. Based on the dispute, we have ceased paying royalties under the settlement and license agreement. In
August 2009, Trend Micro filed a complaint against us in the Superior Court of the State of California for Santa
Clara County alleging breach of contract and seeking a declaratory judgment that we are obligated to make
certain royalty payments to Trend Micro. In December 2009, we withdrew our appeal of the June 2009 dismissal
by the United States District Court for the Northern District of California and filed a new complaint against
Trend Micro in the United States District Court for the Northern District of California alleging, among other
claims, that the patents that are the basis for the ongoing royalty payments are invalid and consequently that we
have no contractual obligation to pay the royalties. In February 2010, Trend Micro filed demurrers in the state
Superior Court action regarding Fortinet’s affirmative defenses that Fortinet has no obligation to pay royalties
because the Trend Micro patents are invalid or unenforceable. In March 2010, Trend Micro filed a motion to
dismiss our new complaint that we filed in the United States District Court for the Northern District of
California. Because this dispute is at an early stage, it is not possible to predict the outcome. An adverse outcome
in this dispute could result in accelerated royalty payments and additional damages.

In January 2009, we filed a complaint against Palo Alto Networks, Inc. in the United States District Court

for the Northern District of California alleging, among other claims, patent infringement. On September 4, 2009,
Palo Alto Networks filed a counterclaim against us alleging patent infringement. In May 2009, Enhanced
Security Research, LLC, or ESR, a non-practicing entity, filed a complaint in the United States District Court for
the District of Delaware alleging patent infringement by us and other defendants. On August 3, 2009, ESR filed a
substantially similar complaint against us in the same court alleging infringement of the same patents. The Palo
Alto Networks and ESR cases are currently at an early stage of the litigation process. In September 2009, Deep
Nines, Inc. filed a complaint against us in the United States District Court for the Eastern District of Texas

37

alleging that at least certain of our products infringe certain of their patents. Deep Nines has not yet served us
with its complaint, and the deadline for service has been extended by the Court until March 8, 2010. If we are
unsuccessful in defending against any of Palo Alto Networks’, ESR’s or Deep Nines’ claims, our operating
results and financial condition and results may be materially and adversely affected. For example, we may be
required to pay substantial damages and could be prevented from selling certain of our products. Several other
non-practicing patent holding companies have sent us letters proposing that we license certain of their patents,
and, given this and the proliferation of lawsuits in our industry and other similar industries by both
non-practicing entities and operating entities, we expect that we will be sued for patent infringement in the
future, regardless of the merits of any such lawsuits. The cost to defend such lawsuits and any adverse result in
such lawsuits could have a material adverse effect on our results of operations and financial condition.

We rely on the availability of third-party licenses.

Many of our products include software or other intellectual property licensed from third parties. It may be
necessary in the future to renew licenses relating to various aspects of these products or to seek new licenses for
existing or new products. There can be no assurance that the necessary licenses would be available on acceptable
terms, if at all. The inability to obtain certain licenses or other rights or to obtain such licenses or rights on
favorable terms, or the need to engage in litigation regarding these matters, could result in delays in product
releases until equivalent technology can be identified, licensed or developed, if at all, and integrated into our
products and may have a material adverse effect on our business, operating results, and financial condition.
Moreover, the inclusion in our products of software or other intellectual property licensed from third parties on a
nonexclusive basis could limit our ability to differentiate our products from those of our competitors.

Risks Related to Ownership of our Common Stock

As a public company, we are subject to compliance initiatives that will require substantial time from our
management and result in significantly increased costs that may adversely affect our operating results and
financial condition.

The Sarbanes-Oxley Act of 2002, as well as other rules implemented by the SEC and The NASDAQ Stock
Market, impose various requirements on public companies, including requiring changes in corporate governance
practices. We expect these and other similar rules and regulations to substantially increase our legal and financial
compliance costs. In addition there are proposed corporate governance laws and regulations under consideration
that may further increase compliance costs if established as law. If compliance with these various legal and
regulatory requirements diverts our management’s attention from other business concerns, it could have a
material adverse effect on our business, financial condition and results of operations. The Sarbanes-Oxley Act
requires, among other things, that we assess the effectiveness of our internal control over financial reporting
annually and disclosure controls and procedures quarterly. In particular, for the fiscal year ending December 31,
2010, we must perform system and process evaluations and testing of our internal control over financial reporting
to allow management to report on the effectiveness of our internal control over financial reporting. We are in the
very early stages of the process of evaluating and documenting processes in order to comply with this
requirement. We may not be able to complete our evaluation, testing and any required remediation in a timely
fashion. During the evaluation and testing process, if we identify one or more material weaknesses in our internal
control over financial reporting, we may be unable to assert that our internal controls are effective. We have in
the past identified material weaknesses and significant deficiencies in our internal control over financial
reporting, and, although we believe we have remediated the material weaknesses, certain significant deficiencies
remain, and we cannot assure you that there will not be material weaknesses and additional significant
deficiencies in our internal controls in the future. If we are unable to assert that our internal control over financial
reporting is effective, or if our auditors are unable to express an opinion on the effectiveness of our internal
controls, we could lose investor confidence in the accuracy and completeness of our financial reports, which
would cause the price of our common stock to decline.

38

If securities or industry analysts stop publishing research or publish inaccurate or unfavorable research about
our business, our stock price and trading volume could decline.

The trading market for our common stock will depend in part on the research and reports that securities or
industry analysts publish about us or our business. If we do not maintain adequate research coverage or if one or
more of the analysts who covers us downgrades our stock or publishes inaccurate or unfavorable research about
our business, our stock price would likely decline. If one or more of these analysts ceases coverage of our
company or fails to publish reports on us regularly, demand for our stock could decrease, which could cause our
stock price and trading volume to decline.

The trading price of our common stock is likely to be volatile.

The market price of our common stock could be subject to wide fluctuations in response to, among other
things, the risk factors described in this periodic report, and other factors beyond our control, such as fluctuations
in the valuation of companies perceived by investors to be comparable to us.

Furthermore, the stock markets have experienced price and volume fluctuations that have affected and
continue to affect the market prices of equity securities of many companies. These fluctuations often have been
unrelated or disproportionate to the operating performance of those companies. These broad market and industry
fluctuations, as well as general economic, political, and market conditions, such as recessions, interest rate
changes or international currency fluctuations, may negatively affect the market price of our common stock.

In the past, many companies that have experienced volatility in the market price of their stock have been
subject to securities class action litigation. We may be the target of this type of litigation in the future. Securities
litigation against us could result in substantial costs and divert our management’s attention from other business
concerns, which could seriously harm our business.

Future sales of shares of our common stock by stockholders could depress the price of our common stock.

Approximately 52,680,972 shares of our common stock may be sold by stockholders upon the expiration of
lock-up agreements in May 2010. This is in addition to stock options that will be vested in May 2010 and eligible
for exercise and sale at the expiration of the lock-up agreements. If stockholders sell, or indicate an intent to sell,
substantial amounts of our common stock in the public market after the expiration of the lock-up and other legal
restrictions on resale lapse, the trading price of our common stock could decline significantly.

Our failure to raise additional capital or generate the significant capital necessary to expand our operations
and invest in new products could reduce our ability to compete and could harm our business.

We expect that our existing cash and cash equivalents will be sufficient to meet our anticipated cash needs
for at least the next twelve months. After that, we may need to raise additional funds, and we may not be able to
obtain additional debt or equity financing on favorable terms, if at all. If we raise additional equity financing, our
stockholders may experience significant dilution of their ownership interests and the per-share value of our
common stock could decline. Furthermore, if we engage in debt financing, the holders of debt would have
priority over the holders of common stock and we may be required to accept terms that restrict our ability to
incur additional indebtedness, and take other actions that would otherwise be in the interests of the stockholders
and force us to maintain specified liquidity or other ratios, any of which could harm our business, operating
results and financial condition. If we need additional capital and cannot raise it on acceptable terms, we may not
be able to, among other things:

•

•

•

develop or enhance our products and services;

continue to expand our sales and marketing and research and development organizations;

acquire complementary technologies, products or businesses;

39

•

•

•

expand operations, in the United States or internationally;

hire, train and retain employees; or

respond to competitive pressures or unanticipated working capital requirements.

Our failure to do any of these things could seriously harm our business, financial condition and results of

operations.

Concentration of ownership among our existing executive officers, directors and their affiliates may prevent
new investors from influencing significant corporate decisions.

As of March 1, 2010, our executive officers, directors and their affiliates beneficially owned, in the
aggregate, approximately 41.4% of our outstanding common stock. As a result, these stockholders are able to
exercise a significant level of control over all matters requiring stockholder approval, including the election of
directors, amendment of our certificate of incorporation and approval of significant corporate transactions. This
control could have the effect of delaying or preventing a change of control of our company or changes in
management and will make the approval of certain transactions difficult or impossible without the support of
these stockholders.

Anti-takeover provisions contained in our certificate of incorporation and bylaws, as well as provisions of
Delaware law, could impair a takeover attempt.

Our certificate of incorporation, bylaws and Delaware law contain provisions that could have the effect of
rendering more difficult, delaying or preventing an acquisition deemed undesirable by our board of directors. Our
corporate governance documents include provisions:

•

•

•

•

•

•

•

creating a classified board of directors whose members serve staggered three-year terms;

authorizing “blank check” preferred stock, which could be issued by the board without stockholder
approval and may contain voting, liquidation, dividend and other rights superior to our common stock;

limiting the liability of, and providing indemnification to, our directors and officers;

limiting the ability of our stockholders to call and bring business before special meetings;

requiring advance notice of stockholder proposals for business to be conducted at meetings of our
stockholders and for nominations of candidates for election to our board of directors;

controlling the procedures for the conduct and scheduling of board and stockholder meetings; and

providing the board of directors with the express power to postpone previously scheduled annual
meetings and to cancel previously scheduled special meetings.

These provisions, alone or together, could delay or prevent hostile takeovers and changes in control or

changes in our management.

As a Delaware corporation, we are also subject to provisions of Delaware law, including Section 203 of the

Delaware General Corporation law, which prevents some stockholders holding more than 15% of our outstanding
common stock from engaging in certain business combinations without approval of the holders of a substantial
majority of all of our outstanding common stock.

Any provision of our certificate of incorporation or bylaws or Delaware law that has the effect of delaying
or deterring a change in control could limit the opportunity for our stockholders to receive a premium for their
shares of our common stock, and could also affect the price that some investors are willing to pay for our
common stock.

40

ITEM 1B. Unresolved Staff Comments

Not applicable.

ITEM 2. Properties

Our corporate headquarters are located at 1090 Kifer Road, Sunnyvale, California in an office consisting of

approximately 107,000 square feet. The lease for this office expires in September 2013. We sublease
approximately 23,000 square feet of this space pursuant to a sublease that expires in December 2011.

In addition to our headquarters, we lease approximately 14,000 square feet of data center space and a total

of approximately 65,000 square feet of office space in several buildings in Burnaby, Canada under various leases
that expire between January 2012 and July 2015, approximately 16,000 square feet of office space in Ottawa,
Canada under a lease that expires in February 2014, approximately 15,500 square feet of office space in Sophia,
France under a lease that expires in December 2013, and approximately 26,000 square feet of office space
in Beijing, China under a lease that expires in August 2011. We also lease sales and support offices in Australia,
Austria, Belgium, Egypt, Germany, Hong Kong, India, Indonesia, Italy, Japan, Korea, Malaysia, Mexico, the
Netherlands, New Zealand, Philippines, Poland, Singapore, Spain, Sweden, Switzerland, Taiwan,
Thailand, United Arab Emirates, and the United Kingdom. We believe that our existing properties are in good
condition and are sufficient and suitable for the conduct of our business.

ITEM 3. Legal Proceedings

In January 2009, we filed a complaint against Palo Alto Networks, Inc., in the United States District Court

for the Northern District of California, alleging, among other claims, patent infringement. On September 4, 2009,
Palo Alto Networks filed a counterclaim against us alleging patent infringement. In May 2009, Enhanced
Security Research, LLC, or ESR, a non-practicing entity, filed a complaint in the United States District Court for
the District of Delaware alleging patent infringement by us and other defendants. On August 3, 2009, ESR filed a
substantially similar complaint against us in the same court alleging infringement of the same patents. The Palo
Alto Networks and ESR cases are currently at an early stage of the litigation process. In September 2009, Deep
Nines, Inc. filed a complaint against us in the United States District Court for the Eastern District of Texas
alleging that at least certain of our products infringe certain of their patents. Deep Nines has not yet served us
with its complaint, and the deadline for service has been extended by the Court until March 8, 2010.

In May 2004, Trend Micro Incorporated filed a complaint against us alleging that we infringed a Trend
Micro patent related to antivirus software. The International Trade Commission, or ITC, subsequently instituted
an investigation which resulted in an exclusion order and a cease and desist order prohibiting us from selling a
broad array of our products in the United States. In January 2006, we settled the lawsuit with Trend Micro, and
subsequently the ITC terminated its action and rescinded the orders. Pursuant to the settlement and license
agreement, we initially paid Trend Micro $15.0 million. The settlement and license agreement provides for
additional quarterly royalty payments, not expected to exceed 1% of our total revenue each quarter, through
2015. In November 2008, we filed a complaint against Trend Micro in the United States District Court for the
Northern District of California alleging, among other claims, that the patents that are the basis for the ongoing
royalty payments are invalid and consequently that we have no contractual obligation to pay the royalties. Trend
Micro moved to dismiss the case, and, in June 2009, the court dismissed the case without prejudice on procedural
grounds, and we appealed the dismissal in July 2009. Based on the dispute, we have ceased paying royalties
under the settlement and license agreement. In August 2009, Trend Micro filed a complaint against us in the
Superior Court of the State of California for Santa Clara County alleging breach of contract and seeking a
declaratory judgment that we are obligated to make certain royalty payments to Trend Micro. In December 2009,
we withdrew our appeal of the June 2009 dismissal by the United States District Court for the Northern District
of California and filed a new complaint against Trend Micro in the United States District Court for the Northern
District of California alleging, among other claims, that the patents that are the basis for the ongoing royalty

41

payments are invalid and consequently that we have no contractual obligation to pay the royalties. We have
continued to accrue expense based on the quarterly royalties provided for in the settlement and license
agreement. In February 2010, Trend Micro filed demurrers in the state Superior Court action regarding Fortinet’s
affirmative defenses that Fortinet has no obligation to pay royalties because the Trend Micro patents are invalid
or unenforceable. In March 2010, Trend Micro filed a motion to dismiss our new complaint that we filed in the
United States District Court for the Northern District of California.

In addition to the above matters, we are subject to other litigation in the ordinary course of business. The
results of legal proceedings cannot be predicted with certainty. If we do not prevail in any of these legal matters,
our operating results may be materially affected. At this time, we are unable to estimate the financial impact
these actions will likely have on the company.

ITEM 4. Reserved

Part II

ITEM 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of

Equity Securities

Our common stock has traded on The NASDAQ Global Select Market under the symbol “FTNT” since it
began trading on November 18, 2009. Our initial public offering was priced at $12.50 per share on November 17,
2009. The following table sets forth, for the time period indicated, the high and low closing sales price of our
common stock as reported on The NASDAQ Global Select Market.

Fourth Quarter 2009 (from November 18, 2009) . . . . . . . . . . .

$18.36

$16.55

High

Low

Holders of Record

As of March 1, 2010, there were 506 holders of record of our common stock. A substantially greater number
of holders of our common stock are “street name” or beneficial holders, whose shares are held by banks, brokers
and other financial institutions.

Dividends

We have never declared or paid cash dividends on our capital stock. We intend to retain all available funds
and any future earnings to support the operation of and to finance the growth and development of our business.
We do not anticipate paying any cash dividends in the foreseeable future. Any future determination to declare
cash dividends will be made at the discretion of our board of directors and will depend on our financial condition,
operating results, capital requirements, general business conditions and other factors that our board of directors
may deem relevant.

42

Stock Performance Graph

This performance graph shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of
1934, as amended (the Exchange Act), or incorporated by reference into any filing of Fortinet under the Securities Act
of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

The following graph shows a comparison from November 18, 2009 through December 31, 2009, of the
cumulative total return for our common stock, the NASDAQ Composite Index, and the NASDAQ Computer
Index. Such returns are based on historical results and are not intended to suggest future performance. Data
for The NASDAQ Composite Index and The NASDAQ Computer Index assume reinvestment of dividends. We
have never declared or paid cash dividends on our capital stock nor do we anticipate paying any such cash
dividends in the foreseeable future.

COMPARISON OF CUMULATIVE TOTAL RETURN*
Among Fortinet, Inc., The NASDAQ Composite Index and
The NASDAQ Computer Index

115

110

105

100

95

90

11/18/2009

11/25/2009

12/2/20 09

12/9/2009

12/16/2009

12/23/2 009

12/30/2 009

Fortinet

NASDAQ Composite

NASDAQ Computer

*

$100 invested on 11/18/09 in stock or index, including reinvestment of dividends.

Sales of Unregistered Securities

1. From December 29, 2008 through December 31, 2009, we granted to our employees and consultants
options to purchase an aggregate of 4,203,426 shares of our common stock under our Amended and Restated
2000 Stock Plan, 2008 Stock Plan, and 2009 Incentive Stock Plan at exercise prices ranging from $7.47 to $12.50
per share for an aggregate purchase price of $33.6 million.

2. From December 29, 2008 through December 31, 2009, we sold and issued to our employees and

consultants an aggregate of 1,349,910 shares of our common stock pursuant to option exercises under our
Amended and Restated 2000 Stock Plan, 2008 Stock Plan, and 2009 Incentive Stock Plan at exercise prices
ranging from $0.05 to $7.47 per share for an aggregate purchase price of $2.6 million.

The issuance of the above securities were deemed to be exempt from registration under the Securities Act

with respect to items 1 and 2 above in reliance on Section 4(2) of the Securities Act or Rule 701 promulgated
under Section 3(b) of the Securities Act. The recipients of securities in each such transaction represented their
intention to acquire the securities for investment only and not with a view to or for sale in connection with any
distribution thereof and appropriate legends were affixed to the stock certificates and option agreements issued in
such transactions. All recipients had adequate access, through their relationships with us, to information about us.

43

Use of Proceeds

On November 17, 2009, our registration statement (No. 333-161190) on Form S-1 was declared effective
for our initial public offering, pursuant to which we registered the offering and sale of an aggregate of 14,375,000
shares of common stock, at a price of $12.50 per share. Included in the above amount is the underwriter’s
overallotment of 1,875,000 shares of common stock, which were sold in the week following the initial public
offering. Upon the closing of the initial public offering, all shares of convertible preferred stock outstanding
automatically converted into 37,476,035 shares of common stock. The offering, which closed on November 24,
2009, did not terminate until after the sale of all of the shares registered on the registration statement. The
managing underwriters were Morgan Stanley & Co. Incorporated, J.P. Morgan Securities Inc. and Deutsche Bank
Securities Inc.

As a result of the offering, we received net proceeds of approximately $87.4 million, which is comprised of

gross proceeds from shares we issued in the initial public offering of $95.7 million plus an administrative fee
reimbursement of $1.7 million, offset by underwriting discounts and commissions of $6.7 million and total
offering costs of $3.3 million. No payments for such expenses were made directly or indirectly to (i) any of our
officers or directors or their associates, (ii) any persons owning 10% or more of any class of our equity securities,
or (iii) any of our affiliates.

We anticipate that we will use the net proceeds from the initial public offering for working capital and other

general corporate purposes, which may include sales and marketing expenditures, general and administrative
expenditures, developing new products and funding capital expenditures. We also may use a portion of the net
proceeds to acquire businesses, products, services or technologies we believe to be complementary. However, we
do not have agreements or commitments for any specific acquisitions at this time. We will have broad discretion
in the way we use the net proceeds. Pending use of the net proceeds as described above, we intend to invest the
net proceeds in money market funds and investment grade debt securities. There has been no material change in
the planned use of proceeds from our initial public offering from that described in the final prospectus filed with
the SEC pursuant to Rule 424(b).

Purchases of Equity Securities by the Issuer and Affiliated Purchasers

None.

44

ITEM 6. Selected Financial Data

You should read the following selected consolidated historical financial data below in conjunction with the

section titled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and the
consolidated financial statements, related notes and other financial information included elsewhere in this Annual
Report on Form 10-K. The selected financial data in this section is not intended to replace the financial
statements and is qualified in its entirety by the consolidated financial statements and related notes thereto
included elsewhere in this Annual Report on Form 10-K.

We made the decision in the first quarter of 2009 to change our financial reporting periods from a fiscal to

calendar basis. This change was implemented in the third quarter of 2009 upon completion of required system
changes. Accordingly, commencing in the third quarter of fiscal 2009, we began operating and reporting
financial results on a calendar quarter and year basis. Our third quarter of fiscal 2009 ended on September 30,
2009, and our fiscal year 2009 ended December 31, 2009. This transition had the effect of increasing the number
of days in our twelve months ended December 31, 2009 by four days. In 2005, we adopted a fiscal year that ends
on the Sunday closest to December 31 of each year. Our 2005, 2006, 2007 and 2008 fiscal years ended on
January 1, 2006, December 31, 2006, December 30, 2007 and December 28, 2008, respectively. Prior to the third
quarter of fiscal 2009, our interim fiscal quarters ended on the Sunday closest to March 31, June 30 and
September 30 of each year.

45

The consolidated statements of operations data for the fiscal years 2009, 2008 and 2007, and consolidated

balance sheets data as of fiscal year end 2009 and 2008, were derived from our audited consolidated financial
statements that are included elsewhere in this Annual Report on Form 10-K. The consolidated statements of
operations data for fiscal year 2006 and 2005, and consolidated balance sheet data as of fiscal year end 2007,
2006 and 2005, were derived from our audited consolidated financial statements which are not included in this
Annual Report. The historical results presented below are not necessarily indicative of financial results to be
achieved in future periods.

Fiscal Year(1)

2009

2008

2007

2006

2005

(in thousands, except per share amounts)

Consolidated Statement of Operations Data:
Revenue

Product
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratable product and services . . . . . . . . . . . . . . . .

$ 98,686
139,172
14,257

$ 94,587
105,292
11,912

$ 70,131
74,152
11,083

$ 59,469
39,590
24,407

$ 32,943
25,469
21,403

Total revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

252,115

211,791

155,366

123,466

79,815

Cost of revenue

Product(2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Services(2)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratable product and services . . . . . . . . . . . . . . . .

Total cost of revenue . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gross profit
Product
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratable product and services . . . . . . . . . . . . . . . .

42,166
22,265
5,544

69,975

56,520
116,907
8,713

41,397
19,441
4,634

65,472

53,190
85,851
7,278

Total gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

182,140

146,319

Operating expenses

Research and development(2)
. . . . . . . . . . . . . . . .
Sales and marketing(2) . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .
General and administrative(2)
. . . . . . . . . . . . . . . . . . .
Patent dispute recovery(3)

42,195
96,291
18,320
—

37,035
87,717
16,640
—

35,948
15,941
4,763

56,652

34,183
58,211
6,320

98,714

27,588
72,159
20,544
—

Total operating expenses . . . . . . . . . . . . . . . . . . . . . . . .

156,806

141,392

120,291

24,166
9,496
7,302

40,964

35,303
30,094
17,105

82,502

21,446
54,056
12,997
—

88,499

14,159
6,625
6,760

27,544

18,784
18,844
14,643

52,271

17,398
40,761
13,481
(5,000)

66,640

Operating income (loss) . . . . . . . . . . . . . . . . . . . . . . . .

25,334

Interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other income (expense), net . . . . . . . . . . . . . . . . . . . . .

1,981
198

Income (loss) before income taxes . . . . . . . . . . . . . . . .

27,513

Provision for (benefit from) income taxes . . . . . . . . . .

(32,666)

Net income (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 60,179

Net income (loss) per share(4):

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

1.93

0.78

$

$

$

4,927

2,614
1,710

9,251

1,888

(21,577)

(5,997)

(14,369)

3,507
(1,991)

2,376
(503)

1,610
(465)

(20,061)

(4,124)

(13,224)

1,781

1,220

939

7,363

$ (21,842) $ (5,334) $(14,163)

0.02

0.02

$

$

(1.13) $

(0.28) $

(0.79)

(1.13) $

(0.28) $

(0.79)

Weighted-average shares outstanding:

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

26,334

20,017

19,276

18,861

18,029

Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

65,219

26,642

19,276

18,861

18,029

(1) Our fiscal years ended on December 31, 2009, December 28, 2008, December 30, 2007, December 31, 2006 and January 1, 2006.

46

(2)

Includes stock-based compensation expense as follows:

Fiscal Year

2009

2008

2007

2006

2005

Cost of product revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cost of services revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Research and development
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sales and marketing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General and administrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 102
658
1,963
3,020
1,718

$

(in thousands)
$
$ 553
67
416
400
1,452
1,049
3,928
2,512
2,983
1,271

$—
99
52 —
135
354
414

4
115
113

Total stock-based compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$7,461

$5,299

$9,332

$1,054

$232

(3) The Company made a settlement offer to Trend Micro Incorporated of $20 million in 2004; however, a Settlement Agreement was

reached in 2005, in which the Company agreed to pay a one-time amount of $15 million resulting in the patent dispute recovery of $5
million. Refer to “Item 3—Legal Proceedings” for further details of the Trend Micro litigation.
(4) Amounts related to 2008 have been corrected. See Note 7 to Consolidated Financial Statements.

Consolidated Balance Sheet Data:
Cash, cash equivalents and short-term investments . . .
Working capital
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred revenue, current and long-term . . . . . . . . . . .
Convertible preferred stock . . . . . . . . . . . . . . . . . . . . .
Common stock including treasury stock and

As of Fiscal Year End

2009

2008

2007

2006

2005

(in thousands)

$260,314
161,652
387,213
201,930
—

$124,190
38,193
199,105
171,617
94,368

$ 90,161
12,862
145,192
131,255
94,368

$ 64,041
12,399
109,311
93,376
94,368

$ 60,926
8,069
102,383
74,504
94,368

additional paid-in capital

. . . . . . . . . . . . . . . . . . . . .
Total stockholders’ equity (deficit) . . . . . . . . . . . . . . .

201,340
142,452

20,854
(5,229)

13,438
(18,925)

4,087
(7,217)

1,937
(4,023)

47

ITEM 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

In addition to historical information, this Annual Report on Form 10-K contains forward-looking statements

within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act
of 1934. These statements include, among other things, statements concerning our expectations:

•

•

•

•

•

•

•

that our service revenues may become a larger portion of our total revenue and may increase as we
renew existing services contracts and expand our customer base;

regarding the percentage of our revenue attributable to ratable product and services revenue;

regarding our royalty payments to Trend Micro;

regarding trends in our costs of revenues and gross margins;

regarding increases in our operating expenses;

regarding our investment in our support infrastructure; and

regarding the hiring of new employees;

as well as other statements regarding our future operations, financial condition and prospects and business
strategies. These forward-looking statements are subject to certain risks and uncertainties that could cause our
actual results to differ materially from those reflected in the forward-looking statements. Factors that could
cause or contribute to such differences include, but are not limited to, those discussed in this Annual Report on
Form 10-K and, in particular, the risks discussed under the heading “Risk Factors” in Item 1A of this Annual
Report on Form 10-K and those discussed in other documents we file with the Securities and Exchange
Commission. We undertake no obligation to revise or publicly release the results of any revision to these
forward-looking statements. Given these risks and uncertainties, readers are cautioned not to place undue
reliance on such forward-looking statements.

Business Overview

We are a leading provider of network security appliances and the market leader in UTM network security

solutions. We provide broad, integrated and high performance protection against dynamic security threats while
simplifying the IT security infrastructure for enterprises, service providers and government entities worldwide.
As of December 31, 2009, we had shipped over 500,000 appliances to more than 5,000 channel partners and
75,000 end-customers worldwide, including a majority of the 2009 Fortune Global 100.

Our core UTM product line of FortiGate appliances ships with a set of security and networking capabilities,

including firewall, VPN, antivirus, intrusion prevention, Web filtering, antispam and WAN acceleration
functionality. We derive a substantial majority of product sales from our FortiGate appliances, which range from
the FortiGate-30 designed for small businesses and branch offices to the FortiGate-5000 series for large
enterprises and service providers. Sales of FortiGate products have generally been balanced across entry-level
(FortiGate-30 to -100 series), mid-range (FortiGate-200 to -800 series) and high-end (FortiGate-1000 to -5000
series) models with each product category representing approximately one third of FortiGate sales for each of the
last three fiscal years. Our UTM solution also includes our FortiGuard security subscription services, which
end-customers can subscribe to in order to obtain access to dynamic updates to the antivirus, intrusion
prevention, Web filtering and antispam functionality included in our appliances. End-customers can also choose
to purchase FortiCare technical support services for our products. We complement our core FortiGate product
line with other appliances and software that offer additional protection from security threats to other critical areas
of the enterprise, such as messaging, Web-based traffic and databases, and employee computers or handheld
devices.

In November 2009, we completed our initial public offering, whereby 14,375,000 shares of common stock

were sold to the public at a price of $12.50 per share. We sold 7,656,683 shares of our common stock and
received $87.4 million in net proceeds, and the selling shareholders sold 6,718,317 shares of our common stock.

48

Our total revenue increased from $155.4 million in fiscal 2007 to $252.1 million in fiscal 2009. We
achieved profitability in the third quarter of fiscal 2008 and have remained profitable each quarter since. Our
total deferred revenue increased by $30.3 million from $171.6 million at December 28, 2008 to $201.9 at
December 31, 2009. Revenue recognized plus the change in deferred revenue from the beginning to the end of
the period is a useful metric that management identifies as billings. Billings drive deferred revenue, which is an
important indicator of the health and visibility of our business, and has historically represented a majority of the
quarterly revenue that we recognize. We also ended fiscal 2009 with $260.3 million in cash, cash equivalents and
short-term investments and have had positive cash flow from operations every fiscal year since 2005.

Our Business Model

Our sales strategy is based on a distribution model whereby we primarily sell our products and services
directly to distributors who sell to resellers and service providers, who, in turn, sell to our end-customers. In
certain cases, we sell directly to government-focused resellers, large service providers and major systems
integrators, who have significant purchasing power and unique customer deployment requirements. Typically,
FortiGuard security subscription services and FortiCare technical support services are purchased along with our
appliances. We invoice at the time of our sale for the total price of the products and subscription and support
services, and the invoice generally becomes payable within 30 to 90 days. We generally recognize product
revenue up-front but defer revenue for the sale of new and renewal subscription and support services contracts
and recognize the related services revenue over the service period, which is typically one year from the date the
end-customer registers for these services, as that is the date on which the services can first be used by the
customer. As a result, our sales of new and renewal services increase our deferred revenue balance, which
contributes significantly to our positive cash flow from operations. Services revenue provides a source of
recurring revenue for us, representing 55.2% of total revenue for fiscal 2009 and 49.7% of total revenue for fiscal
2008, and is important to our future revenue and profitability.

We are a global, geographically diversified business, with more than 60% of our total revenue generated

outside of the Americas region since fiscal 2006. For fiscal 2009, 37% of our total revenue was generated from
the Americas, 38% from EMEA, and 25% from APAC. We sell globally in U.S. dollars, while our international
expenses are denominated in local currencies.

Key Metrics

We monitor the key financial metrics set forth below to help us evaluate growth trends, establish budgets,

measure the effectiveness of our sales and marketing efforts and assess operational efficiencies. We discuss
revenue, gross margin, and the components of operating income and margin below under “—Components of
Operating Results,” and we discuss our cash, cash equivalents and short-term investments under “—Liquidity
and Capital Resources.” Deferred revenue and cash flow from operations are discussed immediately below the
table.

Fiscal Year or as of Fiscal Year End

2009 (2)

2008

2007

Revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gross margin . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$252,115

(dollars in thousands)
$211,791

$155,366

72.2%

69.1%

63.5%

Operating income (loss)(1)

. . . . . . . . . . . . . . . . . . . . . .
Operating margin . . . . . . . . . . . . . . . . . . . . . . . . .

$ 25,334

$

4,927

$ (21,577)

10.0%

2.3%

(13.9)%

Total deferred revenue . . . . . . . . . . . . . . . . . . . . . . . . .
Increase in total deferred revenue . . . . . . . . . . . .
Cash, cash equivalents and short-term investments . . .
Cash flow from operations . . . . . . . . . . . . . . . . . . . . . .

$201,930
30,313
260,314
61,971

$171,617
40,362
124,190
37,686

$131,255
37,879
90,161
27,669

49

(1)

Includes:
Stock-based compensation expense: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Non-cash asset acquisition related write-offs: . . . . . . . . . . . . . . . . . . . . . . . . . .

$7,461
$2,387

$5,299
$ —

$9,332
$ —

The non-cash asset acquisition related write-offs are expenses for intangible assets that have no future value.

(2) We made the decision in the first quarter of 2009 to change our financial reporting periods from a fiscal to calendar year

basis. This change was implemented in the third quarter of 2009 upon completion of required system changes. Commencing
in the third quarter of fiscal 2009, we began operating and reporting financial results on a calendar quarter and year basis.
Our third quarter of fiscal 2009 ended on September 30, 2009, and our fiscal 2009 ended on December 31, 2009. The impact
of the reporting period change had the effect of increasing the number of days in the 12 month period ended December 31,
2009 by four days. This change in period end had the effect of increasing services revenue by approximately $1.6 million.
Although a significant volume of shipments occurs during the final few days of each of our quarterly reporting periods,
including during the year ended December 31, 2009, management believes that the four days added to the year ended
December 31, 2009 from the effect of such conversion to a calendar year end did not materially impact our product revenue,
as we manage our year-end sales cycle based on our financial reporting period end.

Deferred revenue. Our deferred revenue consists of amounts that have been invoiced but that have not yet

been recognized as revenue. The majority of our deferred revenue balance consists of the unamortized portion of
services revenue from subscription and support service contracts. We monitor our deferred revenue balance
because it represents a significant portion of revenue to be recognized in future periods. We also assess the
increase in our deferred revenue balance plus revenue we recognized in a particular period as a measure of our
sales activity for that period.

Cash flow from operations. We monitor cash flow from operations as a measure of our overall business

performance. Our cash flow from operations is driven in large part by advance payments for both new and
renewal contracts for subscription and support services. Monitoring cash flow from operations enables us to
analyze our financial performance without the non-cash effects of certain items such as depreciation,
amortization and stock-based compensation expenses, thereby allowing us to better understand and manage the
cash needs of our business. Our cash flow from operations was $62.0 million in fiscal 2009, $37.7 million in
fiscal 2008, $27.7 million in fiscal 2007 and $3.4 million in each of fiscal 2006 and 2005.

Non-GAAP Financial Measures

To supplement our consolidated financial statements presented in accordance with accounting principles

generally accepted in the United States (“GAAP”), we consider certain financial measures that are not prepared
in accordance with GAAP, including non-GAAP gross margin, non-GAAP income from operations and
operating margin, and non-GAAP operating expenses. These non-GAAP measures are not based on any
standardized methodology prescribed by GAAP and are not necessarily comparable to similar measures
presented by other companies. Non-GAAP gross margin is gross margin as reported on our consolidated
statements of operations, excluding the impact of non-cash stock-based compensation and the non-cash asset
acquisition related write-offs described below. Non-GAAP income from operations is operating income, as
reported on our consolidated statements of operations, excluding the impact of non-cash stock-based
compensation and the non-cash asset acquisition related write-offs described below. The non-cash asset
acquisition related write-offs that we exclude from these non-GAAP financial measures are expenses for
intangible assets that have no future value, but these expenses do not include amortization related to the
intangible assets that provide an ongoing benefit to our recurring operations. Non-GAAP operating margin is
defined as non-GAAP income from operations divided by revenue. Non-GAAP operating expenses exclude the
impact of non-cash stock-based compensation expense.

We believe that these non-GAAP financial measures are appropriate to enhance an overall understanding of

our past financial performance, as they help illustrate underlying trends in our business that could otherwise be
masked by the effect of the expenses that we exclude in these non-GAAP financial measures. Furthermore, we
use many of these measures to establish budgets and operational goals for managing our business and evaluating

50

our performance. We believe that the expenses that we exclude in these non-GAAP financial measures are not
reflective of these underlying business trends or useful measures for determining our operational performance
and overall business strategy. By excluding these expenses, we believe that our management and investors can
better compare our recurring core business operating results over multiple periods.

These non-GAAP financial measures should not be considered in isolation from, or as a substitute for,
financial information prepared in accordance with GAAP. There are a number of limitations related to the use of
these non-GAAP financial measures versus the nearest GAAP equivalent of these financial measures. First, these
non-GAAP financial measures exclude some costs, namely, non-cash stock-based compensation, that are
recurring. Non-cash stock-based compensation has been and will continue to be for the foreseeable future a
significant recurring expense in our business and is an important part of our employees’ compensation that
impacts their performance. Second, the expenses that we exclude in our calculation of these non-GAAP financial
measures may differ from the expenses, if any, that our peer companies may exclude when they report their
results of operations. We compensate for these limitations by providing the nearest GAAP equivalents of these
non-GAAP financial measures and describing these GAAP equivalents in our Results of Operations below.

The following tables reconcile GAAP gross margin, income from operations, operating margin and certain

operating expenses as reported on our consolidated statements of operations to non-GAAP gross margin,
non-GAAP income from operations, non-GAAP operating margin and certain non-GAAP operating expenses for
fiscal 2009, 2008 and 2007, respectively. Further presentation of quarterly non-GAAP gross margin is included
in the “Quarterly Results of Operations” section below.

2009

Fiscal Year

2008

2007

Amount

% of
Revenue

Amount

% of
Revenue

Amount

% of
Revenue

(dollars in thousands)

Total revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$252,115

$211,791

$155,366

GAAP gross profit and margin . . . . . . . . . . . . . .

$182,140

72.2% $146,319

69.1% $ 98,714

63.5%

Stock-based compensation

expense . . . . . . . . . . . . . . . . . .
Acquisition-related write-offs . . .

760
2,387

0.3
0.9

467
—

0.2
—

969
—

0.6
—

Non-GAAP gross profit and margin . . . . . . . . . .

$185,287

73.4% $146,786

69.3% $ 99,683

64.1%

GAAP income from operations and margin . . . .

$ 25,334

10.0% $

4,927

2.3% $ (21,577)

(13.9)%

Stock-based compensation expense:

Cost of revenue . . . . . . . . . . . . . .
Research and development . . . . .
Sales and marketing . . . . . . . . . .
General and administrative . . . . .

$

Total stock-based compensation . . . . .
Asset acquisition-related write-offs . . . . . .

Non-GAAP income from operations and

760
1,963
3,020
1,718

7,461
2,387

0.3% $
0.8
1.2
0.7

3.0
0.9

467
1,049
2,512
1,271

5,299
—

0.2% $
0.5
1.2
0.6

2.5
—

969
1,452
3,928
2,983

9,332
—

0.6%
0.9
2.5
1.9

5.9
—

margin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 35,182

13.9% $ 10,226

4.8% $ (12,245)

(8.0)%

51

2009

Fiscal Year

2008

2007

Amount

% of
Revenue

Amount

% of
Revenue

Amount

% of
Revenue

(dollars in thousands)

Operating Expenses:

Research and development expenses

GAAP research and development

expenses . . . . . . . . . . . . . . . . . . . . .
Stock-based compensation . . . . . . . . .

$ 42,195
1,963

16.7% $ 37,035
1,049
0.8

17.5% $ 27,588
1,452
0.5

17.8%
0.9

Non-GAAP research and development
expenses . . . . . . . . . . . . . . . . . . . . .

Sales and marketing expenses

GAAP sales and marketing

$ 40,232

15.9% $ 35,986

17.0% $ 26,136

16.9%

expenses . . . . . . . . . . . . . . . . . . . . .
Stock-based compensation . . . . . . . . .

$ 96,291
3,020

38.2% $ 87,717
2,512
1.2

41.4% $ 72,159
3,928
1.2

46.4%
2.5

Non-GAAP sales and marketing

expenses . . . . . . . . . . . . . . . . . . . . .

$ 93,271

37.0% $ 85,205

40.2% $ 68,231

43.9%

General and administrative expenses

GAAP general and administrative

expenses . . . . . . . . . . . . . . . . . . . . .
Stock-based compensation . . . . . . . . .

$ 18,320
1,718

7.3% $ 16,640
1,271
0.7

7.9% $ 20,544
2,983
0.6

13.2%
1.9

Non-GAAP general and

administrative expenses . . . . . . . . .

$ 16,602

6.6% $ 15,369

7.3% $ 17,561

11.3%

Total operating expenses

GAAP operating expenses . . . . . . . . .
Stock-based compensation . . . . . . . . .

$156,806
6,701

62.2% $141,392
4,832
2.7

66.8% $120,291
8,363
2.3

Non-GAAP operating expenses . . . . .

$150,105

59.5% $136,560

64.5% $111,928

77.4%
5.4

72.0%

Components of Operating Results

Revenue

We derive our revenue from sales of our products and subscription and support services. We recognize our
revenue in accordance with the guidance in ASC 985-605-25 (formerly referred to as Statement of Position, or
SOP 97-2, Software Revenue Recognition and SOP 98-9, Modification of SOP 97-2, Software Revenue
Recognition, With Respect to Certain Transactions) which is discussed in further detail in “—Critical
Accounting Policies and Estimates—Revenue Recognition” below. According to ASC 985-605-25, revenue is
recognized when persuasive evidence of an arrangement exists, delivery has occurred, the price is fixed or
determinable and collection is probable.

Our total revenue is comprised of the following:

• Product revenue. Product revenue is generated from sales of our appliances and software. The

substantial majority of our product revenue has been generated by our FortiGate line of appliances and
we do not expect this to change in the foreseeable future. Product revenue also includes revenue
derived from sales of FortiManager, FortiAnalyzer, FortiMail, FortiDB, FortiWeb and FortiScan
appliances, and our FortiClient and virtual domain, or VDOM, software. We generally recognize
revenue for products sold to distributors through the “sell-in” method upon shipment to the distributor

52

and, for “sell-through” distributors, upon sale to their end-customer. As a percentage of total revenue,
we expect our product revenue may vary from quarter-to-quarter based on seasonal and cyclical factors
discussed below under “—Quarterly Results of Operations” but generally may remain at comparable
levels or decline modestly, as services revenue becomes a larger portion of our business as we renew
existing services contracts and expand our customer base.

•

Services revenue. Services revenue is generated primarily from FortiCare technical support services for
software updates, maintenance releases and patches, Internet access to technical content, telephone and
Internet access to technical support personnel and hardware support and FortiGuard security
subscription services related to antivirus, intrusion prevention, Web filtering and antispam updates. We
recognize revenue from subscription and support services over the service performance period. Our
typical contractual support and subscription term is one year from the date of registration. We also
generate a small portion of our revenue from professional services and training services and we
recognize this revenue upon completion of the project. As a percentage of total revenue, we expect our
services revenue may remain at comparable levels or increase as we renew existing services contracts
and expand our customer base.

• Ratable product and services revenue. Ratable product and services revenue is generated from sales of

our products and services in cases where the fair value of the services being provided cannot be
segregated from the value of the entire sale. In these cases, the value of the entire sale is deferred and
recognized ratably over the life of the service performance period. See “—Critical Accounting Policies
and Estimates—Revenue Recognition.” In fiscal 2008 and fiscal 2009, ratable product and service
revenue represented approximately six percent of total revenue and we do not expect this percentage to
change significantly in the near future.

Cost of revenue

Our total cost of revenue is comprised of the following:

• Cost of product revenue. A substantial majority of the cost of product revenue consists of third-party
manufacturing costs. Our cost of product revenue also includes product testing costs, write-offs for
excess and obsolete inventory, royalty payments, amortization and any impairment of applicable
acquired intangible assets, warranty costs, shipping and allocated facilities costs, stock-based
compensation costs, and personnel costs associated with logistics and quality control. Personnel costs
include cash-based personnel costs such as salaries, benefits and bonuses. Royalties reflect amounts
related to Trend Micro since 2006, which Trend Micro claims are owed through 2015, as discussed in
“Item 3—Legal Proceedings.” For fiscal 2008 and fiscal 2009, this royalty represented approximately
1% of total revenue and, if such payments are made in accordance with the terms of the 2006
settlement agreement with Trend Micro, we would not expect this percentage to increase substantially
in the foreseeable future. In the fourth quarter of fiscal 2009, we incurred a non-cash charge of
approximately $1.7 million, related to certain warrants issued in connection with acquisitions of
technology assets. See Note 6 to the consolidated financial statements.

• Cost of services revenue. Cost of services revenue is primarily comprised of cash-based personnel costs
associated with our FortiGuard Labs team and our technical support, professional services and training
teams, as well as depreciation, supplies, data center, data communications, facility-related costs and
stock-based compensation costs. We expect our cost of services revenue will increase as we continue to
invest in subscription and support services to meet the needs of our growing customer base.

• Cost of ratable product and services revenue. Cost of ratable product and services revenue is

comprised primarily of deferred product costs and services-related costs.

Gross profit. Gross profit as a percentage of revenue, or gross margin, has been and will continue to be
affected by a variety of factors, including the average sales price of our products, any excess inventory write-offs,

53

manufacturing costs, the mix of products sold and the mix of revenue between products and services. We believe
our overall gross margin for the near term may decline modestly or be relatively flat compared to that achieved in
fiscal 2009 as we do not anticipate in the near term any significant change in the factors positively influencing
gross margin.

Services revenue has increased as a percentage of total revenue since inception and this trend has had a
positive effect on our total gross margin given the higher services gross margins compared to product gross
margins. Our services gross margins have been increasing, but we do not expect these margins to increase
substantially in the future as we continue to invest in our support infrastructure.

Operating expenses. Our operating expenses consist of research and development, sales and marketing and
general and administrative expenses. Personnel costs are the most significant component of operating expenses
and consist of cash-based personnel costs such as salaries, benefits, bonuses and, with regard to the sales and
marketing expense, sales commissions. They also include non-cash stock-based compensation. We expect
personnel costs to continue to increase in absolute dollars as we hire new employees.

• Research and development. Research and development expense consists primarily of cash-based

personnel costs. Additional research and development expenses include ASIC and system prototypes
and certification-related expenses, depreciation of capital equipment, facility-related expenses and
stock-based compensation expenses. The majority of our research and development is focused on both
software development and the ongoing development of our hardware platform. We record all research
and development expenses as incurred, except for capital equipment which is depreciated over time.
Our development teams are primarily located in Canada, China, and California. We expect our
spending for research and development to increase in absolute dollars but intend for research and
development expenses to remain comparable to recent periods as a percentage of total revenue.

•

Sales and marketing. Sales and marketing expense is the largest component of our operating expenses
and primarily consists of cash-based personnel costs. Additional sales and marketing expenses include
stock-based compensation, promotional and other marketing expenses, travel, depreciation of capital
equipment and facility-related expenses. We intend to hire additional personnel focused on sales and
marketing and expand our sales and marketing efforts worldwide in order to add new customers and
increase penetration within our existing customer base. Accordingly, we expect sales and marketing
expenses to increase in absolute dollars and to continue to be our largest operating expense.

• General and administrative. General and administrative expenses consist of cash-based personnel costs
as well as professional fees, stock-based compensation, depreciation of capital equipment and software,
and facility-related expenses. General and administrative personnel include our executive, finance,
human resources, information technology and legal organizations. Our professional fees principally
consist of outside legal, auditing, accounting, information technology and other consulting costs. We
expect that general and administrative expense will increase in absolute dollars as we hire additional
personnel, make improvements to our information technology infrastructure and incur significant
additional costs for the compliance requirements of operating as a public company, including the costs
associated with SEC reporting, Sarbanes-Oxley Act compliance and insurance.

Interest income. Interest income consists of income earned on our cash, cash equivalents and investments.

We have historically invested our cash in money-market funds and other short-term, investment-grade
investments.

Other income (expense), net. Other income (expense), net consists primarily of foreign exchange gains and

losses. Foreign exchange gains and losses relate to transactions denominated in currencies other than the
functional currency of the associated entity.

Provision for (benefit from) income taxes. We are subject to tax in the United States as well as other tax
jurisdictions or countries in which we conduct business. Earnings from our non-U.S. activities are subject to local
country income tax and may be subject to current U.S. income tax.

54

Our effective tax rates differ from the statutory rate primarily due to the provision or release of the valuation

allowance on our net deferred tax assets, state taxes, foreign taxes, research and development tax credits and
nondeductible compensation. For periods going forward, given we have fully reversed our net deferred tax asset
valuation allowance as discussed below, we expect that our effective tax rate will approximate the U.S. federal
statutory tax rates plus the impact of state taxes.

As of December 31, 2009, we had $3.5 million of federal and $33.4 million of state net operating loss carry-

forwards available to reduce future taxable income. These net operating loss carry-forwards begin to expire in
2021 and 2012 for federal and state tax purposes, respectively. Our ability to use our net operating loss carry-
forwards to offset any future taxable income could be subject to limitations attributable to equity transactions that
would result in a change of ownership as defined by Section 382 of the Internal Revenue Code of 1986, as
amended, or the Internal Revenue Code. In addition, the State of California has suspended the ability of
companies to utilize net operating losses to offset 2008 and 2009 state taxable income.

At December 31, 2009, we had a total deferred tax asset of approximately $41.3 million, primarily

comprised of deferred revenue, non-deductible reserves and accruals and net operating loss carryforward. During
the fourth quarter of 2009 we concluded that it was more likely than not that we would be able to realize the
benefit of these deferred tax assets in the future. Consequently, we recognized a $44.2 million benefit in the
fourth quarter of 2009 primarily from the release of substantially all of the net deferred tax asset valuation
allowance. This reversal resulted in recognition of an income tax benefit totaling $37.8 million for fiscal 2009.
We based this conclusion on historical and projected operating performance, as well as our expectation that our
operations will generate sufficient taxable income in future periods to realize the tax benefits associated with the
deferred tax assets. We will continue to assess the need for a valuation allowance on the deferred tax asset by
evaluating both positive and negative evidence that may exist. Any adjustment to the net deferred tax asset
valuation allowance would be recorded in the income statement of the periods that the adjustment is determined
to be required.

We make estimates and judgments about our future taxable income that are based on assumptions that are
consistent with our forecasted operating plans. Should the actual amounts differ from our estimates, the amount
of our income tax provision could be materially impacted.

We have $3.4 million in unrecognized tax benefits, which would impact the effective tax rate if recognized.

Our policy is to classify interest accrued or penalties related to unrecognized tax benefits as a component of
income tax expense.

Critical Accounting Policies and Estimates

Our discussion and analysis of our financial condition and results of operations are based upon our financial

statements, which have been prepared in accordance with U.S. GAAP. These principles require us to make
estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expenses, cash flow
and related disclosure of contingent assets and liabilities. Our estimates include those related to revenue
recognition, stock-based compensation, valuation of inventory, warranty liabilities and accounting for income
taxes. We base our estimates on historical experience and on various other assumptions that we believe to be
reasonable under the circumstances. Actual results may differ from these estimates. To the extent that there are
material differences between these estimates and our actual results, our future financial statements will be
affected.

We believe that of our significant accounting policies, which are described in Note 1 to the financial
statements included in this 10-K, the following accounting policies involve a greater degree of judgment and
complexity. Accordingly, we believe these are the most critical to fully understand and evaluate our financial
condition and results of operations.

55

Revenue Recognition

We derive revenue from sales of products, including appliances and software, and services, including
subscription, support and other services. Our appliances include operating system software that is integrated into
the appliance hardware and is deemed essential to its functionality. As a result, we account for revenue in
accordance with ASC 985-605 and all related interpretations. See “—Recent Accounting Pronouncements” for a
discussion of new revenue recognition standards that we will be required to adopt by fiscal 2011. We are still
assessing the impact of the new standards and have not reflected in this 10-K any impact such standards may
have on our consolidated financial statements.

No revenue can be recognized until all of the following criteria have been met:

• Persuasive evidence of an arrangement exists. Binding contracts or purchase orders are generally used

to determine the existence of an arrangement.

• Delivery has occurred. Delivery occurs when we fulfill an order and title and risk of loss has been

transferred or upon delivery of the service contract registration code.

•

The fee is fixed or determinable. We assess whether the fee is fixed or determinable based on the
payment terms associated with the transaction. In the event payment terms differ from our standard
business practices, the fees are deemed to be not fixed or determinable and revenue is recognized when
the payments become due, provided the remaining criteria for revenue recognition have been met.

• Collectability is probable. We assess collectability based primarily on creditworthiness as determined
by credit checks and analysis, as well as payment history. Payment terms generally range from 30 to
90 days from invoice date.

For arrangements which include customer acceptance criteria, no revenue is recognized prior to acceptance.

We recognize product revenue on sales to distributors that have no rights of return and end-customers upon
shipment of the appliance, once all other revenue recognition criteria have been met. We also make sales through
distributors under agreements that allow for rights of return. We recognize product revenue on sales made
through such distributors upon sale by the distributor to the end-customer, at which time rights of return
generally lapse. Substantially all of our products have been sold in combination with subscription or support
services. Subscription services provide access to our antivirus, intrusion prevention, Web filtering, and antispam
functionality. Support services include rights to unspecified software upgrades, maintenance releases and
patches, telephone and Internet access to technical support personnel, and hardware support.

We commence our subscription and support services on the date the customer registers the appliance. The

customer is then entitled to service for the stated contractual period beginning on the registration date.

We use the residual method to recognize revenue when an arrangement includes one or more elements to be

delivered at a future date and vendor-specific objective evidence (VSOE) of the fair value of all undelivered
elements exists. Under the residual method, the fair value of the undelivered elements is deferred and the
remaining portion of the contract fee is recognized as product revenue. In cases where VSOE of fair value of the
undelivered elements does not exist, typically for subscription and support services, revenue for the entire
arrangement is recognized ratably over the performance period of the undelivered elements. Revenue related to
these arrangements is included in ratable product and services revenue in the accompanying consolidated
statements of operations. VSOE of fair value for elements of an arrangement is based upon the pricing for those
services when sold separately. Revenue for professional services and training is recognized upon completion of
the related services.

We offer certain sales incentives to channel partners. Additionally, in limited circumstances we may permit
end-customers, distributors and resellers to return our products, subject to varying limitations, for a refund within
a reasonably short period from the date of purchase. We reduce revenue for estimates of sales returns and
allowances. We estimate and record reserves for these sales incentives and sales returns based on our historical

56

experience. In each accounting period, we must make judgments and estimates of sales incentives and potential
future sales returns related to current period revenue. These estimates affect our net revenue line item on our
consolidated statement of operations and affect our net accounts receivable, deferred revenue or accrued
liabilities line items on our consolidated balance sheet. Historically, there have been no significant adjustments to
these estimates related to prior periods.

At December 31, 2009, our allowance for sales returns was $5.0 million compared to $2.7 million at
December 28, 2008. If our allowance for sales returns was to increase by 10%, or $0.5 million, our net revenue
would decrease by $0.5 million for the year ended December 31, 2009.

Stock-Based Compensation

Our stock-based compensation expense is as follows:

Fiscal Year

2009

2008

2007

(in thousands)

Cost of product revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cost of services revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Research and development . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sales and marketing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General and administrative . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 102
658
1,963
3,020
1,718

$

67
400
1,049
2,512
1,271

$ 553
416
1,452
3,928
2,983

Total stock-based compensation . . . . . . . . . . . . . . . . . . . . . . .

$7,461

$5,299

$9,332

Employees. Prior to January 2, 2006, we accounted for stock-based awards to employees using the intrinsic
value method in accordance with ASC 718 (formerly referred to as Accounting Principles Board (APB) Opinion
No. 25 and Statement of Financial Accounting Standards (SFAS No. 44). Effective January 2, 2006, we adopted
ASC 718 (SFAS 123R). For stock option grants made subsequent to January 2, 2006, we have accounted for such
stock-based awards to employees in accordance with ASC 718 (SFAS 123R), which requires compensation
expense related to share-based transactions, including employee stock options, to be measured and recognized in
the financial statements based on a determination of the fair value of the stock options. The grant date fair value
is determined using the Black-Scholes-Merton (“Black-Scholes”) pricing model.

We adopted ASC 718 (SFAS 123R) using the prospective method, in which non-public entities that
previously applied ASC 718 (SFAS 123R) using the minimum value method, whether for financial statement
recognition or pro forma disclosure purposes, would continue to account for unvested stock options outstanding
at the date of adoption of ASC 718 (SFAS 123R) in the same manner as they had been accounted for prior to the
adoption of ASC 718 (SFAS 123R). We will continue to apply ASC 718 (APB 25) in future periods to stock
options issued and outstanding at January 2, 2006.

For all employee stock options, we recognize expense over the requisite service period using the straight-

line method.

There is a risk that our estimates of the fair values of our stock-based compensation awards on the grant

dates may bear little resemblance to the actual values realized upon exercise. Stock options may expire or
otherwise result in zero intrinsic value as compared to the fair values originally estimated on the grant date and
reported in our financial statements. Alternatively, value may be realized from these instruments that are
significantly higher than the fair values originally estimated on the grant date and reported in our financial
statements.

As of the end of fiscal years 2009, 2008 and 2007, there was approximately $17.5 million, $13.6 million and
$4.1 million, respectively, of unrecognized stock-based compensation expense related to non-vested stock option
awards, net of estimated forfeitures, that we expect to be recognized over a weighted-average period of 2.61, 2.77
and 1.47 years, respectively.

57

For fiscal years 2009, 2008 and 2007, we calculated the fair value of options granted to employees using the

Black-Scholes pricing model with the following assumptions:

Fiscal Year

2009

2008

2007(1)

Volatility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expected term, in years . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dividend yield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Risk-free interest rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(1) There was only one grant date in fiscal 2007.

4.5 - 4.6

43 - 52% 44 - 47% 49%
4.5 - 4.6
—

6.1
—

—

1.3 - 2.3% 2.3 - 3.3% 4.9%

Non-employees. During the years ended December 31, 2009 and December 28, 2008, we issued to non-

employees in exchange for services, options to purchase 13,000 and 29,000 shares of common stock,
respectively, at a range of exercise prices from $7.47 to $11.00 per share. No options were granted to non-
employees in exchange for services during the year ended December 30, 2007. These options vest over periods of
up to 48 months, and in accordance with ASC 505-50 (formerly referred to as Emerging Issues Task Force
(EITF) Issue No. 96-18), we accounted for these options as variable awards. The options were valued using the
Black-Scholes option pricing model with the following weighted-average assumptions:

Fiscal Year

2009

2008

2007

Volatility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expected term, in years . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dividend yield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Risk-free interest rate . . . . . . . . . . . . . . . . . . . . . . . . . . . .

43 - 52% 44 - 51% 49 - 56%
5.2 - 7.5

6.0 - 8.5

—

—
1.3 - 2.3% 2.3 - 3.6% 4.3 - 4.9%

6.0 - 9.0
—

Valuation of Inventory

Inventory is recorded at the lower of cost (using the first-in, first-out method) or market, after we give
appropriate consideration to obsolescence and inventory in excess of anticipated future demand. In assessing the
ultimate recoverability of inventory, we are required to make estimates regarding future customer demand, the
timing of new product introductions, economic trends and market conditions. If the actual product demand is
significantly lower than forecasted, we could be required to record additional inventory write-downs which
would be charged to cost of product revenue. Any write-downs could have an adverse impact on our gross
margins and profitability. During fiscal 2007, we wrote-off $6.3 million of excess inventory, of which
$6.0 million was written-off in the second half of fiscal 2007.

Warranty Liabilities

We generally provide a one-year warranty on hardware products and a 90-day warranty on software. A
provision for estimated future costs related to warranty activities is charged to cost of product revenue based
upon historical product failure rates and historical costs incurred in correcting product failures. If we experience
an increase in warranty claims compared with our historical experience, or if the cost of servicing warranty
claims is greater than expected, our gross margin could be adversely affected.

Accounting for Income Taxes

We record income taxes using the asset and liability method, which requires the recognition of deferred tax

assets and liabilities for the expected future tax consequences of events that have been recognized in our financial
statements or tax returns. In estimating future tax consequences, generally all expected future events other than
enactments or changes in the tax law or rates are considered. Valuation allowances are provided when necessary
to reduce deferred tax assets to the amount expected to be realized.

58

We operate in various tax jurisdictions and are subject to audit by various tax authorities. We provide for tax

contingencies whenever it is deemed probable that a tax asset has been impaired or a tax liability has been
incurred for events such as tax claims or changes in tax laws. Tax contingencies are based upon their technical
merits, relevant tax law and the specific facts and circumstances as of each reporting period. Changes in facts and
circumstances could result in material changes to the amounts recorded for such tax contingencies.

On January 1, 2007, we adopted ASC 740-10 (FIN 48), which defines the confidence level that a tax
position must meet in order to be recognized in the financial statements. ASC 740-10 requires that the tax effects
of a position be recognized only if it is “more likely than not” to be sustained based solely on its technical merits
as of the reporting date. We consider many factors when evaluating and estimating our tax positions and tax
benefits, which may require periodic adjustments and which may not accurately anticipate actual outcomes.

As part of the process of preparing our consolidated financial statements, we are required to estimate our

taxes in each of the jurisdictions in which we operate. We estimate actual current tax exposure together with
assessing temporary differences resulting from differing treatment of items, such as accruals and allowances not
currently deductible for tax purposes. These differences result in deferred tax assets, which are included in our
consolidated balance sheets. In general, deferred tax assets represent future tax benefits to be received when
certain expenses previously recognized in our consolidated statements of operations become deductible expenses
under applicable income tax laws, or loss or credit carryforwards are utilized.

In assessing the realizability of deferred tax assets, management considers whether it is more likely than not
that some portion or all of the deferred tax assets will be realized. The ultimate realization of deferred tax assets
is dependent upon the generation of future taxable income during the periods in which those temporary
differences become deductible. During the fourth quarter of 2009 we concluded that it was more likely than not
that we would be able to realize the benefit of our deferred tax assets in the future. We based this conclusion on
historical and projected operating performance, as well as our expectation that our operations will generate
sufficient taxable income in future periods to realize the tax benefits associated with the deferred tax assets. As a
result, we released all of the valuation allowance on our net deferred tax assets. We will continue to assess the
need for a valuation allowance on the deferred tax asset by evaluating both positive and negative evidence that
may exist. Any adjustment to the net deferred tax asset valuation allowance would be recorded in the income
statement for the period that the adjustment is determined to be required.

We make estimates and judgments about our future taxable income that are based on assumptions that are
consistent with our plans and estimates. Should the actual amounts differ from our estimates, the amount of our
tax expense and liabilities could be materially impacted.

59

Results of Operations

The following tables set forth our results of operations for the periods presented and as a percentage of our
total revenue for those periods. The period-to-period comparison of financial results is not necessarily indicative
of financial results to be achieved in future periods.

Fiscal Year(1)

2009(2)

2008

2007

(in thousands)

Consolidated Statement of Operations Data:
Revenue

Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratable product and services . . . . . . . . . . . . . . . .

$ 98,686
139,172
14,257

$ 94,587
105,292
11,912

$ 70,131
74,152
11,083

Total revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

252,115

211,791

155,366

Cost of revenue

Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratable product and services . . . . . . . . . . . . . . . .

Total cost of revenues . . . . . . . . . . . . . . . . . . . . . . . . .

Gross profit

Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratable product and services . . . . . . . . . . . . . . . .

Total gross profit

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating expenses

Research and development . . . . . . . . . . . . . . . . . .
Sales and marketing . . . . . . . . . . . . . . . . . . . . . . .
General and administrative . . . . . . . . . . . . . . . . .

42,166
22,265
5,544

69,975

56,520
116,907
8,713

182,140

42,195
96,291
18,320

41,397
19,441
4,634

65,472

53,190
85,851
7,278

146,319

37,035
87,717
16,640

35,948
15,941
4,763

56,652

34,183
58,211
6,320

98,714

27,588
72,159
20,544

Total operating expenses . . . . . . . . . . . . . . . . . . . . . . .

156,806

141,392

120,291

Operating income (loss) . . . . . . . . . . . . . . . . . . . . . . . .

25,334

Interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other income (expense), net . . . . . . . . . . . . . . . . . . . . .

1,981
198

Income (loss) before income taxes . . . . . . . . . . . . . . . .

27,513

Provision for (benefit from) income taxes . . . . . . . . . .

(32,666)

4,927

2,614
1,710

9,251

1,888

(21,577)

3,507
(1,991)

(20,061)

1,781

Net income (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 60,179

$

7,363

$ (21,842)

(1) Our fiscal years ended on December 31, 2009, December 28, 2008 and December 30, 2007.
(2) We made the decision in the first quarter of 2009 to change our financial reporting periods from a fiscal to calendar basis. This change
was implemented in the third quarter of 2009 upon completion of required system changes. Commencing in the third quarter of fiscal
2009, we began operating and reporting financial results on a calendar quarter and year basis. This change in period end had the effect of
increasing the number of days in fiscal 2009 by four days.

60

Fiscal Year

2009

2008

2007

(as % of revenue)

Revenue

Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratable product and services . . . . . . . . . . . . . . . . . . . . . . . . .

39.1% 44.7% 45.1%
49.7
55.2
5.6
5.7

47.7
7.2

Total revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

100.0% 100.0% 100.0%

Total cost of revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

27.8% 30.9% 36.5%

Total gross profit

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

72.2% 69.1% 63.5%

Operating expenses

Research and development . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sales and marketing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General and administrative . . . . . . . . . . . . . . . . . . . . . . . . . .

16.7% 17.5% 17.8%
41.4
38.2
7.9
7.3

46.4
13.2

Total operating expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

62.2% 66.8% 77.4%

Operating income (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10.0%

2.3% (13.9)%

Interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other income (expense), net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Income (loss) before provision for income taxes . . . . . . . . . . . . . .
Provision for (benefit from) income taxes . . . . . . . . . . . . . . . . . . .

0.8%
0.1

10.9%
(13.0)

1.3%
0.8

2.3%
(1.3)

4.4% (12.9)%
0.9

1.2

Net income (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

23.9%

3.5% (14.1)%

Fiscal Years 2009 and 2008

Revenue

Fiscal Year

2009

2008

Amount

% of
Revenue

Amount

% of
Revenue

$ Change % Change

(dollars in thousands)

Revenue

Product . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Services . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratable product and services . . . . . . . . . . .

$ 98,686
139,172
14,257

39.1% $ 94,587
105,292
55.2
11,912
5.7

44.7% $ 4,099
33,880
49.7
2,345
5.6

Total revenue . . . . . . . . . . . . . . . . . . . . . . . . . . .

$252,115

100.0% $211,791

100.0% $40,324

Revenue by Geography

Americas . . . . . . . . . . . . . . . . . . . . . . . . . . .
EMEA . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
APAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 92,621
95,886
63,608

36.7% $ 75,367
79,755
38.1
56,669
25.2

35.6% $17,254
16,131
37.7
6,939
26.7

Total revenue . . . . . . . . . . . . . . . . . . . . . . . . . . .

$252,115

100.0% $211,791

100.0% $40,324

4.3%
32.2
19.7

19.0%

22.9%
20.2
12.2

19.0%

Total revenue increased $40.3 million, or 19.0%, in fiscal 2009 compared to fiscal 2008, primarily due to

growth in services revenue. The Americas and EMEA regions contributed the largest portion of this growth.
Product revenue increased $4.1 million, or 4.3%, compared to fiscal 2008. The increase in product revenue was
primarily driven by higher product sales volume, predominantly in the Americas region, as we expanded our
distributor base to include those that focus on high volume sales of entry-level products. While there were no
material price changes between the periods, the shift in product mix towards our entry-level products had the

61

effect of decreasing our average sales price. Services revenue increased $33.9 million, or 32.2%, in fiscal 2009
compared to fiscal 2008 due to recognition of revenue from our growing deferred revenue balance consisting of
subscription and support contracts sold to a larger customer base. The increase in services revenue also reflects
additional services revenue amortization of approximately $1.6 million due to our reporting period transition
discussed above. The growth in ratable product and services revenue was due to a slight decrease in the
weighted-average service period over which such revenue was recognized, due to a decrease in the average
contractual term of support contracts for arrangements in which we recognized product and services revenue
ratably over the performance period.

Cost of revenue and gross margin

Fiscal Year

2009

2008

$ Change % Change

(dollars in thousands)

Cost of revenue

Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratable product and services . . . . . . . . . . . . . . . . .

$42,166
22,265
5,544

$41,397
19,441
4,634

Total cost of revenue . . . . . . . . . . . . . . . . . . . . . . . . . . .

$69,975

$65,472

$ 769
2,824
910

$4,503

1.9%
14.5
19.6

6.9%

Gross margin

Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratable product and services . . . . . . . . . . . . . . . . .
Total gross margin . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

57.3%
84.0
61.1
72.2

56.2%
81.5
61.1
69.1

1.1%
2.5
—
3.1

Total gross margin increased 3.1 percentage points in fiscal 2009 primarily due to improved product and

service margins and a higher mix of services revenue in fiscal 2009 compared to fiscal 2008. Product gross
margin increased 1.1 percentage points in fiscal 2009 compared to fiscal 2008 primarily due to lower warranty-
related return costs which resulted in a savings of $3.2 million, partially offset by $2.4 million of asset
acquisition related write-offs. The 2.5 percentage point increase in services gross margin was primarily due to
growth in services revenue resulting from a larger customer base to leverage our support cost structure. Services
cost increased by $2.8 million primarily due to $2.0 million of higher cash-based personnel costs related to
headcount increases in our professional services and training teams and an increase of $0.3 million in stock-
based compensation. Ratable product and services gross margin was unchanged in the period.

Operating Expenses

Fiscal Year

2009

2008

Amount

% of
Revenue

Amount

% of
Revenue
(dollars in thousands)

$ Change % Change

Operating expenses

Research and development . . . . . . . . . . . . .
Sales and marketing . . . . . . . . . . . . . . . . . .
General and administrative . . . . . . . . . . . . .

$ 42,195
96,291
18,320

16.7% $ 37,035
87,717
38.2
16,640
7.3

17.5% $ 5,160
8,574
41.4
1,680
7.9

Total operating expenses . . . . . . . . . . . . . . . . . .

$156,806

62.2% $141,392

66.8% $15,414

13.9%
9.8
10.1

10.9%

Research and development expense

Research and development expense increased $5.2 million, or 13.9%, in fiscal 2009 compared to fiscal 2008

primarily due to an increase of $3.7 million in cash-based personnel costs as a result of increased headcount to

62

support continued enhancements of our products. We also had an increase of $0.9 million in stock-based
compensation expense, an increase of $0.2 million in depreciation expense and $0.2 million in supplies and other
expenses.

Sales and marketing expense

Sales and marketing expense increased $8.6 million, or 9.8%, in fiscal 2009 compared to fiscal 2008
primarily due to increased cash-based personnel costs of $5.4 million based on increased headcount primarily in
the U.S., a $1.3 million increase in promotional and other marketing-related expenses, a $0.5 million increase in
rent and occupancy-related expenses, a $0.4 million increase in travel, higher depreciation costs of $0.4 million,
and a $0.5 million increase in stock-based compensation expense. As a percentage of revenue, sales and
marketing expenses decreased 3.2 percentage points.

General and administrative expense

In fiscal 2009, general and administrative expense increased $1.7 million, or 10.1%, compared to fiscal
2008. The increase was primarily due to a $0.9 million increase in external legal services, a $0.5 million increase
in accounting-related services, a $0.5 million increase in rent and occupancy-related expenses and a $0.4 million
increase in stock-based compensation. These increases were partially offset by a $0.5 million decrease in
computer related supplies and a $0.2 million decrease in travel expenses.

Interest income and other income (expense), net

Interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .
Other income (expense), net

$1,981
198

(dollars in thousands)
$ (633)
$2,614
(1,512)
1,710

(24.2)%
(88.4)

Fiscal Year

2009

2008

$ Change % Change

The $0.6 million decrease in interest income in fiscal 2009 compared to fiscal 2008 was due to lower
interest rates earned, despite higher balances of cash, cash equivalents and short-term investments. The change in
other income (expense), net for fiscal 2009 was the result of a stronger U.S. dollar compared to the Euro, British
Pound and the Canadian dollar in 2008 when compared to 2009.

Provision for income taxes

Provision for income taxes . . . . . . . . . . . . . . . . . . . . . .
Effective tax rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

*

not meaningful

Fiscal Year

2009

2008

$ Change

% Change

$(32,666)

(dollars in thousands)
$1,888

$(34,554)

(118.7)% 20.4%

*
*

The effective tax rate was negative 118.7% for fiscal 2009, compared with an effective tax rate of 20.4% for

fiscal 2008. The provision for income taxes for fiscal 2009 is comprised primarily of federal, state and foreign
income taxes as well as the release of the valuation allowance. The decrease in the provision for income taxes for
fiscal 2009 compared to fiscal 2008 was attributable to the release of the valuation allowance against our net
deferred tax assets. We generated pretax income in fiscal 2009 and 2008. As a result of this positive earnings
trend and projected future taxable income, we reversed approximately $44.2 million of deferred tax asset
valuation allowance; having determined that it was more likely than not that our deferred tax assets would be
realized. This reversal resulted in recognition of an income tax benefit totaling $37.8 million. Our estimates of

63

future taxable income represent critical accounting estimates because such estimates are subject to change and a
downward adjustment could have a significant impact on future earnings. Furthermore, we continue to evaluate
our net deferred tax asset position, in regards to the likelihood of realization of our deferred tax assets.

Fiscal Years 2008 and 2007

Revenue

Fiscal Year

2008

2007

Amount

% of
Revenue

Amount

% of
Revenue

$ Change % Change

(dollars in thousands)

Revenue

Product . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Services . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratable product and services . . . . . . . . . . .

$ 94,587
105,292
11,912

44.7% $ 70,131
74,152
49.7
11,083
5.6

45.1% $24,456
31,140
47.7
829
7.2

Total revenue . . . . . . . . . . . . . . . . . . . . . . . . . . .

$211,791

100.0% $155,366

100.0% $56,425

Revenue by Geography

Americas . . . . . . . . . . . . . . . . . . . . . . . . . . .
EMEA . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
APAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 75,367
79,755
56,669

35.6% $ 55,461
54,722
37.7
45,183
26.7

35.7% $19,906
25,033
35.2
11,486
29.1

Total revenue . . . . . . . . . . . . . . . . . . . . . . . . . . .

$211,791

100.0% $155,366

100.0% $56,425

34.9%
42.0
7.5

36.3%

35.9%
45.7
25.4

36.3%

Total revenue increased $56.4 million, or 36.3%, in fiscal 2008 compared to fiscal 2007, primarily as a
result of growth in sales in the EMEA and Americas regions. Product revenue increased $24.5 million, or 34.9%,
in fiscal 2008 compared to fiscal 2007, largely driven by increased sales of our higher-end products, consisting of
our FortiGate-1000 to 5000 series, to large enterprises and service providers. While there were no material price
changes between the periods, the shift in product mix towards our higher-end products had the effect of
increasing our average sales price. In addition we experienced modest overall growth in sales volume. Services
revenue increased $31.1 million, or 42.0%, due to an increase in our installed customer base. The modest growth
in ratable product and services revenue was due to the incremental amortization of new ratable product and
services sales.

Cost of revenue and gross margin

Fiscal Year

2008

2007

$ Change % Change

(dollars in thousands)

Cost of revenue

Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratable product and services . . . . . . . . . . . . . . . .

$41,397
19,441
4,634

$35,948
15,941
4,763

$5,449
3,500
(129)

Total cost of revenue . . . . . . . . . . . . . . . . . . . . . . . . . .

$65,472

$56,652

$8,820

15.2%
22.0
(2.7)

15.6%

Gross margin

Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratable product and services . . . . . . . . . . . . . . . .
Total gross margin . . . . . . . . . . . . . . . . . . . . . . . . . . . .

56.2%
81.5
61.1
69.1

48.7%
78.5
57.0
63.5

7.5%
3.0
4.1
5.6

64

Total gross margin increased 5.6 percentage points in fiscal 2008 primarily due to improving product
margins based on enhanced inventory management and a higher mix of services revenue. The 7.5 percentage
point increase in product gross margin in fiscal 2008 was primarily due to a $6.3 million excess inventory
write-off taken in fiscal 2007 which reduced product gross margin by approximately 9.0 percentage points in
fiscal 2007. The 3.0 percentage point increase in services gross margin in fiscal 2008 was primarily due to higher
revenue and a larger customer base which enabled us to leverage our support cost structure. Services cost
increased $3.5 million in fiscal 2008 primarily due to an increase of $2.5 million in cash-based personnel costs
resulting from increased headcount in our threat research centers and in our technical support centers in both the
EMEA and Americas regions. Additional costs included a $0.4 million increase in stock-based compensation
expense and $0.5 million of higher facility-related expenses to support the additional staffing requirements.
Ratable gross margin increased in accordance with the respective product and services gross margin increases.

Operating expenses

Fiscal Year

2008

2007

Amount

% of
Revenue

Amount

% of
Revenue

$ Change % Change

(dollars in thousands)

Operating expenses

Research and development . . . . . . . . . . . . .
Sales and marketing . . . . . . . . . . . . . . . . . .
General and administrative . . . . . . . . . . . . .

$ 37,035
87,717
16,640

17.5% $ 27,588
72,159
41.4
20,544
7.9

17.8% $ 9,447
15,558
46.4
(3,904)
13.2

Total operating expenses . . . . . . . . . . . . . . . . . .

$141,392

66.8% $120,291

77.4% $21,101

34.2%
21.6
(19.0)

17.5%

The increase in stock-based compensation expense in fiscal 2007 was primarily due to the remeasurement of

the vested portion of certain option grants associated with extending the exercise period for employees that had
terminated their employment with us. See “—Critical Accounting Policies and Estimates—Stock-Based
Compensation.”

Research and development expense

Research and development expense increased $9.4 million, or 34.2%, in fiscal 2008 compared to fiscal

2007, primarily due to an increase of $8.1 million in cash-based personnel costs as a result of increased
headcount, an increase of $0.7 million in higher external test and certification costs and an increase of $0.7
million for rent and occupancy-related expenses. These increases were partially offset by a $0.4 million decrease
in stock-based compensation expense.

Sales and marketing expense

Sales and marketing expense increased $15.6 million, or 21.6%, in fiscal 2008 compared to fiscal 2007,
primarily due to increased cash-based personnel costs of $12.2 million resulting from increased headcount in an
effort to help drive our overall revenue growth. In fiscal 2008 we also had $2.5 million in additional promotional
and other marketing-related expenses, $1.3 million of incremental rent and occupancy-related expenses and $0.5
million from increased travel expenses. These increases were partially offset by a $1.4 million decrease in stock-
based compensation expense. As a result, sales and marketing expense as a percent of revenue decreased 5.0
percentage points in fiscal 2008.

General and administrative expense

The $3.9 million decrease in general and administrative expense was primarily due to $3.6 million in lower

external accounting and legal services expenses in fiscal 2008 as compared to fiscal 2007 when we made

65

investments in the automation of our financial processes. Cash-based personnel costs increased $1.2 million as
we incurred the full year costs from increased headcount in fiscal 2007 to support our growth and bad debt
expense of $0.2 million, offset by a decrease in stock-based compensation expense of $1.7 million. As a result,
general and administrative expense as a percent of revenue decreased 5.3 percentage points in fiscal 2008.

Interest income and other income (expense), net

Interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other income (expense), net . . . . . . . . . . . . . . . . . . . . . . .

$2,614
1,710

(dollars in thousands)
$ (893)
3,701

$ 3,507
(1,991)

(25.5)%
*

Fiscal Year

2008

2007

$ Change % Change

*

not meaningful

The $0.9 million decrease in interest income in fiscal 2008 was due to lower interest rates earned, despite
higher balances of cash, cash equivalents and short-term investments. The gain in fiscal 2008 in other income
(expense), net was the result of an increase in foreign exchange gains primarily due to the strengthening of the
U.S. dollar against the Euro, British Pound and the Canadian dollar. The loss in fiscal 2007 was primarily due to
the weakening of the U.S. dollar against the same three currencies.

Provision for income taxes

Provision for income taxes . . . . . . . . . . . . . . . . . . . . . . . .
Effective tax rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

*

not meaningful

Fiscal Year

2008

2007

$ Change % Change

$1,888

(dollars in thousands)
$1,781

$107

20.4%

(8.9)%

6.0%
*

The effective tax rate was 20.4% for fiscal 2008, compared with an effective tax rate of negative 8.9% for
fiscal 2007. The provision for income taxes for fiscal 2008 is comprised primarily of foreign income taxes and
state taxes. We incurred tax expense despite a consolidated loss before income taxes for fiscal 2007 primarily due
to foreign income taxes paid based on profits realized by our foreign subsidiaries. The increase in the provision
for income taxes for fiscal 2008 compared to fiscal 2007 was attributable to an increase in state income taxes due
to improved results in fiscal 2008, offset by a reduction in foreign income tax expense driven by the realization
of certain foreign tax credits.

66

Quarterly Results of Operations

The following table set forth unaudited quarterly statements of operations data for the last eight fiscal
quarters. The information for each of these quarters has been prepared on the same basis as the audited annual
financial statements included elsewhere in this annual report and, in the opinion of management, includes all
adjustments, which includes only normal recurring adjustments, necessary for the fair presentation of the results
of operations for these periods. This data should be read in conjunction with our audited consolidated financial
statements and related notes included elsewhere in this annual report. These quarterly operating results are not
necessarily indicative of our operating results for any future period.

Mar 30,
2008

Jun 29,
2008

Sept 28,
2008

Dec 28,
2008

Mar 29,
2009

Jun 28,
2009

Sept 30,
2009(1)

Dec 31,
2009

Three Months Ended

(in thousands)

Consolidated Statements of

Operations Data:

Revenue

Product . . . . . . . . . . . . . . . $20,691 $24,088 $23,616 $26,192 $19,326 $24,451 $25,550 $ 29,359
Services . . . . . . . . . . . . . .
37,414
27,627
Ratable product and

29,898

25,455

33,473

36,712

31,573

22,312

services . . . . . . . . . . . . .

2,761

3,004

3,171

2,976

3,295

3,421

3,602

3,939

Total revenue . . . . . . . . . . . . . .

45,764

52,547

54,414

59,066

54,194

61,345

65,864

70,712

Cost of revenue
Product(2)
. . . . . . . . . . . . .
Services(2) . . . . . . . . . . . . .
Ratable product and

9,474
4,597

10,317
5,170

9,629
4,984

11,977
4,690

8,305
5,048

10,316
5,357

10,428
5,550

13,117
6,310

services . . . . . . . . . . . . .

1,067

1,153

1,227

1,187

1,301

1,306

1,455

Total cost of revenue . . . . . . . .

15,138

16,640

15,840

17,854

14,654

16,979

17,433

Total gross profit

. . . . . . . . . . .

30,626

35,907

38,574

41,212

39,540

44,366

48,431

1,482

20,909

49,803

Operating expenses

Research and

development(2)
Sales and marketing(2)
General and

. . . . . . .
. . .

8,780
21,556

9,449
22,910

9,957
21,434

8,849
21,817

9,876
21,763

10,534
24,341

10,797
23,468

10,988
26,719

administrative(2)

. . . . . .

3,953

4,451

3,963

4,273

4,672

4,516

4,490

4,642

Total operating expenses . . . . .

34,289

36,810

35,354

34,939

36,311

39,391

38,755

42,349

Operating income (loss) . . . . . .
Interest income . . . . . . . . . . . . .
Other income (expense), net . . .

(3,663)
735
(903)

(903)
542
199

3,220
595
875

6,273
742
1,539

3,229
714
494

4,975
535
(282)

9,676
428
(64)

7,454
304
50

Income (loss) before income

taxes . . . . . . . . . . . . . . . . . . .
Provision / (benefit) for income
taxes . . . . . . . . . . . . . . . . . . .

(3,831)

(162)

4,690

8,554

4,437

5,228

10,040

7,808

338

756

183

611

663

652

2,151

(36,132)

Net income (loss) . . . . . . . . . . . $ (4,169) $ (918) $ 4,507 $ 7,943 $ 3,774 $ 4,576 $ 7,889 $ 43,940

Net income (loss) per share
attributable to common
stockholders(3)

Basic . . . . . . . . . . . . . . . . . $ (0.22) $ (0.05) $

0.05 $

0.11 $ (0.07) $ — $

0.11 $

Diluted . . . . . . . . . . . . . . . $ (0.22) $ (0.05) $

0.04 $

0.10 $ (0.07) $ — $

0.10 $

1.02

0.62

67

(1) Our transition to a calendar year and quarters beginning in the third quarter of fiscal 2009 had the effect of increasing the number of days

in fiscal 2009 by four days relative to fiscal 2008.
Includes stock-based compensation expense and asset acquisition-related write-offs as follows:

(2)

Mar 30,
2008

Jun 29,
2008

Sept 28,
2008

Dec 28,
2008

Mar 29,
2009

Jun 28,
2009

Sept 30,
2009

Dec 31,
2009

Three Months Ended

Cost of product revenue . . . . . . . . . . . . . . . . . .
Cost of services revenue . . . . . . . . . . . . . . . . . .
Research and development . . . . . . . . . . . . . . . .
Sales and marketing . . . . . . . . . . . . . . . . . . . . .
General and administrative . . . . . . . . . . . . . . . .

$

9
79
162
559
253

$

18
93
266
661
322

$

19
111
299
647
357

(in thousands)

$

21
117
322
645
339

$

24
124
378
644
380

$

27
172
498
692
404

$

25
169
516
767
459

$

26
193
571
917
475

Total stock-based compensation . . . . . . . . . . . . . . . .
Asset acquisition related write-offs . . . . . . . . . .

1,062
—

1,360
—

1,433
—

1,444
—

1,550
—

1,793
631

1,936
93

2,182
1,663

Total stock based compensation and asset

acquisition related write-offs . . . . . . . . . . . . . . . .

$1,062

$1,360

$1,433

$1,444

$1,550

$2,424

$2,029

$3,845

(3) See Note 7 to the Consolidated Financial Statements.

Seasonality, Cyclicality and Quarterly Revenue Trends

Our quarterly results reflect seasonality in the sale of our products, subscriptions and services. In general, a

pattern of increased customer buying at year-end has positively impacted sales activity in the fourth quarter,
which can make it difficult to achieve sequential growth in the first quarter. Our product revenue in the third
quarter has also been negatively affected by reduced economic activity in the summer months, particularly in
Europe. Similarly, our gross margins and operating income have been affected by these historical trends because
expenses are relatively fixed in the near-term. Although these seasonal factors are common in the technology
sector, historical patterns should not be considered a reliable indicator of our future sales activity or performance.
On a quarterly basis, we have usually generated the majority of our product revenue in the final month of each
quarter and a significant amount in the last two weeks of a quarter. We believe this is due to customer buying
patterns typical in this industry.

68

Our total quarterly revenue has increased sequentially during seven of the last eight quarters. Although a
significant volume of shipments occurs towards the end of each of our quarterly reporting periods, including
during the quarter ended December 31, 2009, management believes that the transition from a fiscal quarter
ending on the Sunday closest to the calendar quarter end to a calendar quarter end basis (which transition added
three days to the quarter ended September 30, 2009), did not materially impact our product revenue as we
manage our quarter end sales cycle based on our financial reporting period end. We believe the declines in the
third quarter of fiscal 2008 and in Europe in the third quarter of fiscal 2009 are based on seasonality as discussed
above. Product revenue in each of the first two quarters of fiscal 2009 was essentially flat compared to the same
periods in fiscal 2008, which we believe was due in part to adverse global economic conditions. Additionally,
product revenue was lower in the first quarter of fiscal 2009 due to a delay in the availability of a new product
which delayed revenue recognition on orders until the second quarter of fiscal 2009. Services revenue has
generally increased sequentially each quarter, as new support and subscription contracts have been entered into,
and existing customers have renewed their contracts. In the fourth quarter of fiscal 2009, product revenue
increased 12% compared to the same period in the prior year, due to increased product sales in all three regions
and, in particular, increased sales to enterprise and service provider customers. Services revenue in the fourth
quarter of 2009 increased by 25% compared to the fourth quarter of fiscal 2008, due to recognition of revenue
from our growing deferred revenue balance as our subscription and support services were sold to a larger
customer base. In the fourth quarter of fiscal 2009, we also benefited from an additional day of amortization of
approximately $0.4 million due to the change in our reporting period discussed above.

Mar 30,
2008

Jun 29,
2008

Sept 28,
2008

Dec 28,
2008

Mar 29,
2009

Jun 28,
2009

Sept 30,
2009

Dec 31,
2009

Three Months Ended

Consolidated Statements
of Operations Data:

Revenue

. . . . . . . . . . . .
Product
Services . . . . . . . . . . . .
Ratable product and

$20,691
22,312

$24,088
25,455

$23,616
27,627

$26,192
29,898

$19,326
31,573

$24,451
33,473

$25,550
36,712

$29,359
37,414

services . . . . . . . . . .

2,761

3,004

3,171

2,976

3,295

3,421

3,602

3,939

Total revenue . . . . . . . . . . . .

$45,764

$52,547

$54,414

$59,066

$54,194

$61,345

$65,864

$70,712

As a percentage of

revenue:

Revenue

Product
. . . . . . . . . . . .
Services . . . . . . . . . . . .
Ratable product and

services . . . . . . . . . .

45.2%
48.8

45.8%
48.4

43.4%
50.8

44.3%
50.6

35.7%
58.3

39.9%
54.6

38.8%
55.7

41.5%
52.9

6.0

5.8

5.8

5.1

6.0

5.5

5.5

5.6

Total revenue . . . . . . . . . . . .

100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%

69

Quarterly Gross Margin Trend

Gross margin has fluctuated on a quarterly basis primarily due to shifts in the mix of sales between products

and services, types of products sold and the average selling prices of our products. Product gross margins in the
fourth quarter of fiscal 2008 decreased due to higher discounts and a $0.5 million write-off for excess and
obsolete inventory that we incurred in that period. Product gross margins in the fourth quarter of fiscal 2009 also
decreased due to asset acquisition related costs of $1.7 million. Services gross margins have increased or
remained relatively flat from the first quarter of fiscal 2008 through the third quarter of fiscal 2009 due to higher
revenue and a larger customer base over which to spread related costs. In the fourth quarter of fiscal 2009,
services gross margin decreased due to an increase in headcount as we continue to invest in support personnel.

Mar 30,
2008

June 29,
2008

Sept 28,
2008

Dec 28,
2008

Mar 29,
2009

June 28,
2009

Sept 30,
2009

Dec 31,
2009

Three Months Ended

Gross Margin by Component of

Revenue:
Gross margin
Product
. . . . . . . . . . . . . . . . . . . . .
Services . . . . . . . . . . . . . . . . . . . . .
Ratable product and services . . . . .
Total gross margin . . . . . . . . . . . . . . . . .

Reconciliation of GAAP to

non-GAAP gross margin:

GAAP Gross margin . . . . . . . . . . . . . . .
Stock-based compensation . . . . . .
Asset acquisition-related write-

54.2% 57.2% 59.2% 54.3% 57.0% 57.8% 59.2% 55.3%
79.4
61.4
66.9

83.1
62.4
70.4

79.7
61.6
68.3

84.9
59.6
73.5

84.0
61.8
72.3

82.0
61.3
70.9

84.0
60.5
73.0

84.3
60.1
69.8

Mar 30,
2008

June 29,
2008

Sept 28,
2008

Dec 28,
2008

Mar 29,
2009

June 28,
2009

Sept 30,
2009

Dec 31,
2009

Three Months Ended

66.9% 68.3% 70.9% 69.8% 73.0% 72.3% 73.5% 70.4%
0.2

0.3

0.3

0.3

0.3

0.2

0.2

0.2

offs . . . . . . . . . . . . . . . . . . . . . . . —

—

—

—

—

1.0

0.1

2.4

Non-GAAP gross margin . . . . . . . . . . .

67.1% 68.5% 71.1% 70.0% 73.3% 73.6% 73.9% 73.1%

Liquidity and Capital Resources

As of Fiscal Year End

2009

2008

2007

Cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . .
Short-term investments . . . . . . . . . . . . . . . . . . . . . . . . . .
Working capital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$212,458
47,856
161,652

(in thousands)
$ 56,571
67,619
38,193

Fiscal Year

$71,411
18,750
12,862

Cash provided by operating activities . . . . . . . . . . . . . . .
Cash provided by (used in) investing activities . . . . . . .
Cash provided by financing activities . . . . . . . . . . . . . . .
Effect of exchange rates on cash and cash

2009

2008

2007

$ 61,971
13,757
78,049

(in thousands)
$ 37,686
(53,706)
2,117

$27,669
(2,328)
19

equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2,110

(937)

460

Net increase (decrease) in cash and cash equivalents . . .

$155,887

$(14,840)

$25,820

70

Prior to our initial public offering in November 2009, we had financed our operations primarily through
private sales of equity securities and, more recently, cash generated from operations. In November 2009, we
completed our initial public offering and raised net proceeds of $87.4 million. At December 31, 2009, our cash,
cash equivalents, and short-term investments of $260.3 million were held for working-capital purposes and were
invested primarily in money market funds, commercial paper, corporate debt securities and U.S. government debt
securities. We do not enter into investments for trading or speculative purposes. We believe that our existing cash
and cash equivalents will be sufficient to meet our anticipated cash needs for at least the next twelve months. Our
future capital requirements will depend on many factors including our growth rate, the timing and extent of
spending to support development efforts, the expansion of sales and marketing activities, the introduction of new
and enhanced products and services offerings, the costs to ensure access to adequate manufacturing capacity and
the continuing market acceptance of our products. In the event that additional financing is required from outside
sources, we may not be able to raise it on terms acceptable to us or at all. If we are unable to raise additional
capital when desired, our business, operating results and financial condition would be adversely affected.

Operating Activities

In fiscal 2009, operating activities provided $62.0 million in cash as a result of net income of $60.2 million,
decreased by non-cash items such as the tax benefit from the release of our valuation allowance of $30.2 million,
excess tax benefit from employee stock option plans of $1.6 million; increased by stock-based compensation
amounts of $7.5 million, depreciation and amortization amounts of $5.9 million, write-off of intangible assets of
$2.4 million, and amortization of investment premiums of $0.8 million. Changes in operating assets and
liabilities provided $16.9 million in cash. Sources of cash totaled $38.7 million and were related to a $30.3
million increase in deferred revenue which was attributable primarily to increased sales of our subscription and
support services, a $3.0 million increase in accounts payable due to timing of payments, a $2.8 million increase
in accrued liabilities and accrued payroll and compensation primarily related to increased headcount, and a $2.6
million increase in taxes payable. Uses of cash totaled $21.8 million and were related to a $9.6 million increase
in deferred tax assets, a $8.5 million increase in accounts receivable due to the overall growth of our business, a
$1.1 million increase in deferred cost of revenue related to the increase in ratable products and services deferred
revenue, a $2.0 million increase in inventory, and a $0.6 million increase in prepaid expenses and other assets.

In fiscal 2008, operating activities provided $37.7 million in cash as a result of net income of $7.4 million,

increased by non-cash items such as depreciation and amortization amounts of $4.2 million and stock-based
compensation amounts of $5.3 million. Changes in operating assets and liabilities provided $20.8 million in cash.
Sources of cash totaled $45.6 million and were related to a $40.4 million increase in deferred revenue which was
attributable to increased sales of our subscription and support services and a $4.3 million increase in accrued
liabilities and accrued payroll and compensation primarily related to increased headcount. Uses of cash totaled
$24.8 million and were related to an $18.4 million increase in accounts receivable due to the overall growth of
our business and a 13 day increase (from 57 to 70 days) in days sales outstanding due to slower customer
payments, a $1.2 million increase in deferred cost of revenue related to the increase in ratable products and
services deferred revenue and a $1.9 million and $2.1 million decrease in accounts payable and income tax
payable, respectively, related to the timing of payments.

In fiscal 2007, operating activities provided $27.7 million in cash as a result of a net loss of $21.8 million,

offset by non-cash items such as depreciation and amortization amounts of $4.2 million and stock-based
compensation amounts of $9.3 million. Changes in operating assets and liabilities provided $36.0 million in cash.
Sources of cash totaled $48.2 million and were related to a $37.9 million increase in deferred revenue which was
attributable to increased sales of our subscription and support services, an $8.6 million increase in accrued
liabilities and accrued payroll and compensation primarily related to increased headcount, and $0.9 million and
$0.5 million increases in accounts payable and income taxes payable, respectively. Uses of cash totaled $12.2
million and were related to a $6.6 million increase in inventory which relates to the growth of our business, a
$2.3 million increase in accounts receivable due to the overall growth of our business offset by a 13 day decrease

71

(from 70 to 57 days) in days sales outstanding driven primarily by improved collections experience, a $1.8
million increase in deferred cost of revenue which relates to the increase in ratable products and services deferred
revenue, and a $1.2 million increase in prepaid expenses and other current assets.

Investing Activities

Our investing activities consisted primarily of purchases and sales of short-term investments associated with

our investment balances and capital expenditures. The $13.8 million of cash provided by investing activities
during fiscal 2009 was due primarily to net maturities of short-term investments of $18.9 million. Additionally,
we used cash of $4.6 million for capital expenditures and $0.5 million for the purchase of certain technology
assets.

The $53.7 million of cash used in investing activities in fiscal 2008 was due primarily to $48.8 million in
net purchases of short-term investments. Additionally, we used cash of $2.8 million for capital expenditures, $1.0
million for the purchase of assets from IPLocks and $1.0 million for the purchase of certain other technology
assets.

The $2.3 million of cash used in investing activities in fiscal 2007 related to capital expenditures of $2.0

million and $0.3 million in net purchases of short-term investments.

Financing Activities

Our financing activities in fiscal 2009 resulted in net cash provided of $78.0 million as a result of receiving

proceeds of $88.3 million, net of issuance costs paid of $2.4 million, from the sale of common stock in
connection with our initial public offering in November 2009. In addition, we received proceeds of $4.0 million
from the exercise of warrants and stock options to purchase our common stock and had an in excess tax benefit
from employee stock option plans of $1.6 million, all partially offset by $15.8 million related to the repurchase of
our preferred and common stock in the first half of fiscal 2009. Our financing activities in fiscal 2008 related to
proceeds of $2.1 million, as a result of exercises of stock options to purchase our common stock. We had no
material financing activities in 2007.

Contractual Obligations and Commitments

The following summarizes our contractual obligations as of December 31, 2009:

Payments Due by Period

Total

Less Than
1 Year

1-3
Years

4-5
Years

More Than
5 Years

Operating leases(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Purchase commitments(2)
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Royalty commitments(3)

$18,422
11,797
7,000

$ 6,220
11,797
3,000

(in thousands)
$10,850
—
3,000

$1,352
—
1,000

Total(4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$37,219

$21,017

$13,850

$2,352

$—
—
—

$—

(1) Consists of contractual obligations from non-cancelable office space under operating leases.
(2) Consists of minimum purchase commitments with independent contract manufacturers.
(3) Consists of minimum royalties claimed by Trend Micro to be owed, which are subject to dispute. See “Item 3—Legal Proceedings.”
(4) No amounts related to ASC 740-10 (FIN 48) are included. As of December 31, 2009, we had approximately $3.4 million of tax

liabilities, including interest, related to uncertain tax positions. Because of the high degree of uncertainty regarding the settlement of
these liabilities, we are unable to estimate the years in which future cash outflows may occur.

72

Off-Balance Sheet Arrangements

During fiscal 2009, 2008 and 2007, we did not have any relationships with unconsolidated organizations or
financial partnerships, such as structured finance or special purpose entities that would have been established for
the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes.

Recent Accounting Pronouncements

See Note 1 of Notes to Consolidated Financial Statements for recent accounting pronouncements that could

have an effect on us.

ITEM 7A. Quantitative and Qualitative Disclosures about Market Risk

Interest Rate Fluctuation Risk

The primary objectives of our investment activities are to preserve principal, provide liquidity and maximize

income without significantly increasing risk. Some of the securities we invest in are subject to market risk. This
means that a change in prevailing interest rates may cause the principal amount of the investment to fluctuate. To
minimize this risk, we maintain our portfolio of cash, cash equivalents and short-term investments in a variety of
securities, including commercial paper, money market funds, government and corporate debt securities and
certificates of deposit. The risk associated with fluctuating interest rates is limited to our investment portfolio. A
10% decrease in interest rates in 2009, 2008 and 2007 would have resulted in a decrease in our interest income of
approximately $0.2 million, $0.3 million and $0.4 million, respectively. As of December 31, 2009, our cash, cash
equivalents and short-term investments were in money market funds, commercial paper, corporate debt securities
and U.S. government debt securities.

Foreign Currency Exchange Risk

Our sales contracts are primarily denominated in U.S. dollars and therefore substantially all of our revenue
is not subject to foreign currency risk. However, a substantial portion of our operating expenses incurred outside
the U.S. are denominated in foreign currencies and are subject to fluctuations due to changes in foreign currency
exchange rates, particularly changes in the Canadian dollar and Euro. Additionally, fluctuations in foreign
currency exchange rates may cause us to recognize transaction gains and losses in our consolidated statements of
operations. We recognized other income (expense), net of $0.2 million in fiscal 2009 due to foreign currency
transaction gains.

We recently began to use foreign exchange forward contracts to partially mitigate the impact of fluctuations

in foreign currency rates on certain balance sheet accounts. We do not use these contracts for speculative or
trading purposes. These contracts typically have maturities between one and two months, and we record gains
and losses from these instruments in other income (expense), net.

Inflation Risk

Our monetary assets, consisting primarily of cash, cash equivalents and short-term investments, are not
affected significantly by inflation because they are short-term. We believe the impact of inflation on replacement
costs of equipment, furniture and leasehold improvements will not materially affect our operations. The rate of
inflation, however, affects our cost of revenue and expenses, such as those for employee compensation, which
may not be readily recoverable in the price of products and services offered by us.

73

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Report of Independent Registered Public Accounting Firm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Consolidated Balance Sheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Consolidated Statements of Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Consolidated Statements of Stockholders’ Equity (Deficit) and Comprehensive Income (Loss) . . . . . . . . . .

Consolidated Statements of Cash Flows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Notes to Consolidated Financial Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

The supplementary financial information required by this Item 8 is included in Item 7 under the caption “Quarterly Results of

Operations.”

Page

75

76

77

78

79

80

74

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of
Fortinet, Inc.
Sunnyvale, California

We have audited the accompanying consolidated balance sheets of Fortinet, Inc. and subsidiaries (the
“Company”) as of December 31, 2009 and December 28, 2008, and the related consolidated statements of
operations, stockholders’ equity (deficit) and comprehensive income (loss), and cash flows for each of the three
years in the period ended December 31, 2009. Our audits also included the financial statement schedule listed in
the Index at Item 15. These financial statements and financial statement schedule are the responsibility of the
Company’s management. Our responsibility is to express an opinion on the financial statements and financial
statement schedules based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight
Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance
about whether the financial statements are free of material misstatement. The Company is not required to have,
nor were we engaged to perform, an audit of its internal control over financial reporting. Our audits included
consideration of internal control over financial reporting as a basis for designing audit procedures that are
appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the
Company’s internal control over financial reporting. Accordingly, we express no such opinion. An audit also
includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements,
assessing the accounting principles used and significant estimates made by management, as well as evaluating
the overall financial statement presentation. We believe that our audits provide a reasonable basis for our
opinion.

In our opinion, such consolidated financial statements present fairly, in all material respects, the financial
position of Fortinet, Inc. and subsidiaries as of December 31, 2009 and December 28, 2008, and the results of
their operations and their cash flows for each of the three years in the period ended December 31, 2009, in
conformity with accounting principles generally accepted in the United States of America. Also, in our opinion,
such financial statement schedule, when considered in relation to the basic consolidated financial statements
taken as a whole, presents fairly in all material respects the information set forth therein.

/s/ Deloitte & Touche LLP

San Jose, California
March 5, 2010

75

FORTINET, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS
(in thousands, except per share amounts)

December 31,
2009

December 28,
2008

ASSETS

CURRENT ASSETS:

Cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Short-term investments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accounts receivable, net of allowance for doubtful accounts of $367 and $318 at

December 31, 2009 and December 28, 2008, respectively . . . . . . . . . . . . . . . . . . . .
Inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred tax asset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prepaid expenses and other current assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred cost of revenues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$212,458
47,856

$ 56,571
67,619

54,551
10,649
9,652
3,100
3,951

46,043
11,419
69
3,270
3,470

Total current assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

342,217

188,461

PROPERTY AND EQUIPMENT—Net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DEFERRED COST OF REVENUES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DEFERRED TAX ASSET—Non-current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OTHER ASSETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6,387

5,743

31,671

1,195

3,425

5,161

—

2,058

TOTAL ASSETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$387,213

$ 199,105

LIABILITIES AND STOCKHOLDERS’ EQUITY (DEFICIT)

CURRENT LIABILITIES:

Accounts payable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued payroll and compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred revenue—current

$ 10,987
15,050
13,991
140,537

Total current liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

180,565

DEFERRED REVENUE—Non-current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OTHER NON-CURRENT LIABILITIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

61,393
2,803

$

7,004
12,128
12,839
118,297

150,268

53,320
746

Total liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

244,761

204,334

COMMITMENTS AND CONTINGENCIES (Note 9)

STOCKHOLDERS’ EQUITY (DEFICIT):

Convertible preferred stock, $0.001 par value — 40,500 shares authorized; 0 and
40,480 shares issued and outstanding at December 31, 2009 and December 28,
2008, respectively; liquidation preference of $0 and $95,400 at December 31,
2009 and December 28, 2008 , respectively . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Common stock, $0.001 par value — 300,000 and 82,000 shares authorized; 67,517

and 20,720 shares issued and 66,813 and 20,720 shares outstanding at
December 31, 2009 and December 28, 2008, respectively . . . . . . . . . . . . . . . . . . . .
Additional paid-in-capital
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Treasury stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accumulated other comprehensive income (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accumulated deficit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

—

94,368

67
204,268
(2,995)
1,084
(59,972)

21
20,833
—
(300)
(120,151)

Total stockholders’ equity (deficit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

142,452

(5,229)

TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY (DEFICIT) . . . . . . . . . . . . . .

$387,213

$ 199,105

See notes to consolidated financial statements.

76

FORTINET, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF OPERATIONS
(in thousands, except per share amounts)

Years Ended

December 31,
2009

December 28,
2008

December 30,
2007

REVENUE:
Product
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratable product and services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 98,686
139,172
14,257

$ 94,587
105,292
11,912

$ 70,131
74,152
11,083

Total revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

252,115

211,791

155,366

COST OF REVENUE:

Product
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratable product and services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total cost of revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

GROSS PROFIT:
Product
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratable product and services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

42,166
22,265
5,544

69,975

56,520
116,907
8,713

182,140

OPERATING EXPENSES:

Research and development
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sales and marketing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General and administrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

42,195
96,291
18,320

41,397
19,441
4,634

65,472

53,190
85,851
7,278

146,319

37,035
87,717
16,640

35,948
15,941
4,763

56,652

34,183
58,211
6,320

98,714

27,588
72,159
20,544

Total operating expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

156,806

141,392

120,291

OPERATING INCOME (LOSS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

25,334

INTEREST INCOME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OTHER INCOME (EXPENSE)—Net

. . . . . . . . . . . . . . . . . . . . . . . . . .

1,981

198

INCOME (LOSS) BEFORE INCOME TAXES . . . . . . . . . . . . . . . . . . .

27,513

PROVISION FOR (BENEFIT FROM) INCOME TAXES . . . . . . . . . .

(32,666)

4,927

2,614

1,710

9,251

1,888

(21,577)

3,507

(1,991)

(20,061)

1,781

NET INCOME (LOSS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 60,179

$

7,363

$ (21,842)

Net income (loss) per share attributable to common stockholders

(Note 7):

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

1.93

0.78

$

$

0.02

0.02

$

$

(1.13)

(1.13)

Weighted-average shares outstanding:

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

26,334

65,219

20,017

26,642

19,276

19,276

See notes to consolidated financial statements.

77

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FORTINET, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)

December 31,
2009

Years Ended
December 28,
2008

December 30,
2007

$ 60,179

$ 7,363

$(21,842)

CASH FLOWS FROM OPERATING ACTIVITIES:

Net income (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustments to reconcile net income (loss) to net cash provided by operating

activities:

Depreciation and amortization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Write-off of intangible assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Amortization of investment premiums . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stock-based compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Excess tax benefit from employee stock option plans . . . . . . . . . . . . . . . .
Income tax benefit from release of valuation allowance . . . . . . . . . . . . . .
Changes in operating assets and liabilities:

Accounts receivable—net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred tax assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prepaid expenses and other current assets . . . . . . . . . . . . . . . . . . . . .
Deferred cost of revenues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accounts payable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued payroll and compensation . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Income taxes payable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net cash provided by operating activities . . . . . . . . . . . . . . . . . .

CASH FLOWS FROM INVESTING ACTIVITIES:

Purchase of property and equipment
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Purchase of short-term investments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maturities and sales of short-term investments . . . . . . . . . . . . . . . . . . . . . . . . .
Payments made in connection with asset acquisition, net
. . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net cash provided by (used in) investing activities . . . . . . . . . .

CASH FLOWS FROM FINANCING ACTIVITIES:

Proceeds from exercise of stock options and warrants . . . . . . . . . . . . . . . . . . . .
Proceeds from initial public offering, net of offering costs . . . . . . . . . . . . . . . .
Repurchase of convertible preferred shares . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repurchase of common shares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Excess tax benefit from employee stock option plans . . . . . . . . . . . . . . . . . . . .
Net cash provided by financing activities . . . . . . . . . . . . . . . . . .

5,935
2,387
836
7,461
(1,574)
(30,211)

(8,508)
(2,012)
(9,578)
(190)
(1,063)
(419)
3,046
2,157
630
30,313
2,582
61,971

(4,589)
(137,231)
156,126
(549)
—
13,757

3,978
88,260
(12,768)
(2,995)
1,574
78,049

4,234
—
41
5,299
—
—

(18,350)
(189)
205
(214)
(1,231)
(80)
(1,864)
(780)
5,030
40,363
(2,141)
37,686

(2,798)
(80,588)
31,742
(2,000)
(62)
(53,706)

2,117
—
—
—
—
2,117

4,153
—
—
9,332
—
—

(2,268)
(6,597)
(286)
(1,226)
(1,800)
272
970
5,788
2,846
37,875
452
27,669

(2,028)
(30,050)
29,750
—
—
(2,328)

19
—
—
—
—
19

460

EFFECT OF EXCHANGE RATES ON CASH AND CASH EQUIVALENTS . . . .

2,110

(937)

NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS . . . . . . .

155,887

(14,840)

25,820

CASH AND CASH EQUIVALENTS—Beginning of period . . . . . . . . . . . . . . . . . .
CASH AND CASH EQUIVALENTS—End of period . . . . . . . . . . . . . . . . . . . . . . .

56,571
$ 212,458

71,411
$ 56,571

45,591
$ 71,411

SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:

Cash paid for taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

4,746

$ 3,615

$ 1,227

NON-CASH INVESTING AND FINANCING ACTIVITIES:

Purchase of property and equipment not yet paid . . . . . . . . . . . . . . . . . . . . . . .

Accrued offering costs not yet paid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

849

872

$

67

$

23

$ —

$ —

See notes to consolidated financial statements.

79

FORTINET, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Business—Fortinet, Inc. (“Fortinet”) was incorporated in Delaware in October 2000 and is a leading
provider of network security appliances and Unified Threat Management (UTM) network security solutions to
enterprises, service providers and government entities worldwide. Fortinet’s solutions are designed to integrate
multiple levels of security protection, including firewall, virtual private networking, antivirus, intrusion
prevention, web filtering, antispam and WAN acceleration.

Initial Public Offering—In November 2009, we completed our initial public offering, whereby
14,375,000 million shares of common stock were sold to the public at a price of $12.50 per share. We sold
7,656,683 shares of common stock and selling shareholders sold 6,718,317 common shares. We received $87.4
million in net proceeds, comprising of gross proceeds from shares issued by us in the initial public offering of
$95.7 million plus an administrative fee reimbursement of $1.7 million, offset by underwriting discount of $6.7
million and total offering costs of $3.3 million. Upon the closing of the initial public offering, all shares of
convertible preferred stock outstanding automatically converted into 37,476,035 shares of common stock.

Basis of Presentation and Preparation—The consolidated financial statements include the accounts of
Fortinet and its wholly owned subsidiaries (collectively, the “Company,” “we,” “us” or “our”). All intercompany
transactions and balances have been eliminated in consolidation. Beginning 2005 fiscal year, we adopted a 52- to
53-week year ending on the Sunday closest to December 31 of each year. Commencing in the third quarter of
fiscal 2009, we began operating and reporting financial results on a calendar quarter and year basis. Our 2009
fiscal year ends on December 31, 2009.

Certain prior year amounts in the consolidated financial statements and notes thereto have been reclassified
to conform to the current year’s presentation. We reclassified $3.5 million of long-term deferred cost of revenue
to short-term deferred cost of revenue in the December 31, 2008 Consolidated Balance Sheet. The
reclassification resulted from a change in accounting presentation such that deferred cost of revenue associated
with short-term deferred revenue is classified as short-term and deferred cost of revenue associated with long-
term deferred revenue is classified as long-term. There have been no changes in our revenue recognition policies
or practices associated with this change in classification.

Use of Estimates—The preparation of consolidated financial statements in conformity with accounting

principles generally accepted in the United States of America requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities at the date of the consolidated financial
statements and the reported amounts of revenues and expenses during the reporting period. Such management
estimates include implicit service periods for revenue recognition, litigation and settlement costs and other loss
contingencies, sales returns and allowances, reserve for bad debt, inventory write-offs, reserve for warranty costs,
valuation of deferred tax assets, and tangible and intangible assets. We base our estimates on historical
experience and also on assumptions that we believe are reasonable. Actual results could differ from those
estimates.

Certain Significant Risks and Uncertainties—We are subject to certain risks and uncertainties that could

have a material adverse effect on our future financial position or results of operations, such as the following:
changes in level of demand for our products and services, seasonality, the timing of new product introductions,
price and sales competition and our ability to adapt to changing market conditions and dynamics, changes in the
expenses caused, for example, by fluctuations in foreign currency exchange rates, management of inventory,
internal control over financial reporting, market acceptance of our new products and services, demand for UTM
products and services in general, failure of our channel partners to perform, the quality of our products and

80

FORTINET, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

services, general economic conditions, challenges in doing business outside of the United States of America,
changes in customer relationships, litigation, or claims against us based on intellectual property, patent, product
regulatory or other factors (Note 9), product obsolescence, and our ability to attract and retain qualified
employees.

We rely on sole suppliers and independent contract manufacturers for certain of our components and one

third-party logistics company for certain distribution of our products. The inability of any of these parties to
fulfill our supply and logistics requirements could negatively impact our future operating results.

Concentration of Credit Risk—Financial instruments that subject us to concentrations of credit risk
consist primarily of cash, cash equivalents, short-term investments, and accounts receivable. We maintain our
cash and cash equivalents in fixed income securities with major financial institutions, which our management
assesses to be of high credit quality, in order to limit the exposure of each investment. Deposits held with banks
may exceed the amount of insurance provided on such deposits.

Credit risk with respect to accounts receivable in general is diversified due to the number of different
entities comprising our customer base and their location throughout the world. We perform ongoing credit
evaluations of our customers and generally do not require collateral on accounts receivable. We maintain
reserves for estimated potential credit losses.

At December 31, 2009 and December 28, 2008, one distributor customer accounted for 15% and 18%,

respectively, of net accounts receivable.

During the years ended December 31, 2009, December 28, 2008 and December 30, 2007, one distributor

customer accounted for 12% of total net revenues for each fiscal year.

Fair Value of Financial Instruments—Accounting Standards Codification (ASC) 825 (formerly referred

to as Financial Accounting Standards Board Statement No. 107, Disclosures about Fair Value of Financial
Instruments), requires disclosure of fair value information about financial instruments, whether or not recognized
in the balance sheet, for which it is practicable to estimate that value. Due to their short-term nature, the carrying
amounts reported in the consolidated financial statements approximate the fair value for cash and cash
equivalents, accounts receivable, and accounts payable.

Comprehensive Income (Loss)—ASC 220 (formerly referred to as FASB Statement No. 130, Reporting
Comprehensive Income), establishes standards for the reporting and displaying of comprehensive income (loss)
and its components. Comprehensive income (loss) includes certain changes in equity from non-owner sources
that are excluded from net income (loss). Specifically, cumulative foreign currency translation adjustments and
unrealized gains and losses are included in comprehensive income (loss). Comprehensive income (loss) has been
reflected in the consolidated statements of stockholders’ equity (deficit) and comprehensive income (loss).

Foreign Currency Translation—Assets and liabilities of foreign subsidiaries are translated into U.S.
dollars using the exchange rates in effect at the balance sheet dates and revenue and expenses are translated using
average exchange rates during the period. The resulting foreign translation adjustments are recorded in
accumulated other comprehensive income (loss). Foreign currency transaction gains and (losses) of $0.1 million,
$1.4 million and $(2.0) million, are included in other income (expense), net for the years ended December 31,
2009, December 28, 2008 and December 30, 2007, respectively.

81

FORTINET, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

Cash, Cash Equivalents and Short-Term Investments—We consider all highly liquid investments,

purchased with original maturities of three months or less, to be cash equivalents. Cash and cash equivalents
consist of cash on-hand, balances with banks, and highly liquid investments in money market funds, commercial
paper, government securities, certificates of deposit, and corporate debt securities.

The Company classifies all of its investments as available-for-sale at the time of purchase since it is
management’s intent that these investments are available for current operations, and includes these investments
on its balance sheet as short-term investments. Investments with original maturities greater than 90 days that
mature less than one year from the consolidated balance sheet date are classified as short-term investments.

Short-term investments are considered to be impaired when a decline in fair value is judged to be other-
than-temporary. We consult with our investment managers and consider available quantitative and qualitative
evidence in evaluating potential impairment of our investments on a quarterly basis. If the cost of an investment
exceeds its fair value, we evaluate, among other factors, general market conditions, the duration and extent to
which the fair value is less than cost, and our intent and ability to hold the investment. Once a decline in fair
value is determined to be other-than-temporary, an impairment charge is recorded and a new cost basis in the
investment is established.

Inventory—Inventory is recorded at the lower of cost (using the first-in, first-out method) or market, after

we give appropriate consideration to obsolescence and inventory in excess of anticipated future demand. In
assessing the ultimate recoverability of inventory, we are required to make estimates regarding future customer
demand, the timing of new product introductions, economic trends and market conditions. If the actual product
demand is significantly lower than forecasted, we could be required to record additional inventory write-downs,
which could have an adverse impact on our gross margins and profitability.

Deferred Cost of Revenues—Deferred cost of revenues represent the unamortized cost of products
associated with ratable products and services revenue, which is based upon the actual cost of the hardware sold
and is recognized over the service periods of the arrangements. Deferred cost of revenue associated with short-
term deferred revenue is classified as short-term and deferred cost of revenue associated with long-term deferred
revenue is classified as long-term.

Property and Equipment—Property and equipment are stated at cost. Depreciation is computed using the

straight-line method over the estimated useful lives of the assets, generally one to three years. Evaluation units
are transferred from inventory at cost and are amortized over one year from the date of transfer. Leasehold
improvements are amortized over the shorter of the estimated useful lives of the improvements or the lease term.

Impairment of Long-Lived Assets—We evaluate events and changes in circumstances that could indicate
carrying amounts of long-lived assets, including intangible assets, may not be recoverable. When such events or
changes in circumstances occur, we assess the recoverability of long-lived assets by determining whether the
carrying value of such assets will be recovered through undiscounted expected future cash flows. If the total of
the future undiscounted cash flows is less than the carrying amount of those assets, we record an impairment
charge in the period in which we make the determination. If such assets are considered to be impaired, the
impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the
fair value of the assets.

Deferred Revenue—Deferred revenue consists of amounts that have been invoiced but that have not yet

been recognized as revenue.

82

FORTINET, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

Income Taxes—We record income taxes using the asset and liability method, which requires the

recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been
recognized in our financial statements or tax returns. In estimating future tax consequences, generally all
expected future events other than enactments or changes in the tax law or rates are considered. Valuation
allowances are provided when necessary to reduce deferred tax assets to the amount expected to be realized.

We operate in various tax jurisdictions and are subject to audit by various tax authorities. We provide for tax

contingencies whenever it is deemed probable that a tax asset has been impaired or a tax liability has been
incurred for events such as tax claims or changes in tax laws. Tax contingencies are based upon their technical
merits, relevant tax law and the specific facts and circumstances as of each reporting period. Changes in facts and
circumstances could result in material changes to the amounts recorded for such tax contingencies.

We assess the likelihood that some portion or all of our deferred tax assets will be recovered from future

taxable income within the respective jurisdictions, and to the extent we believe that recovery does not meet the
“more-likely-than-not” standard, based solely on its technical merits as of the reporting date, we establish a
valuation allowance. We consider many factors when evaluating and estimating our tax positions and tax
benefits, which may require periodic adjustments and which may not accurately anticipate actual outcomes.

Advertising Expense—Advertising costs are expensed when incurred and is included in operating expenses

in the accompanying consolidated statements of operations. Our advertising expenses were not significant for
any periods presented.

Stock-Based Compensation—Effective January 2, 2006, we adopted ASC 718 (formerly referred to as
SFAS 123R). For our stock option grants made subsequent to January 2, 2006, we have accounted for such stock-
based awards to employees in accordance with ASC 718, which requires compensation expense related to share-
based transactions, including employee stock options, to be measured and recognized in the financial statements
based on fair value. Under ASC 718, the fair value of each option award is estimated on the grant date using the
Black-Scholes option pricing model.

Research and Development Costs—Research and development costs are expensed as incurred.

Software Development Costs—The costs to develop software have not been capitalized as we believe our

current software development process is essentially completed concurrent with the establishment of technological
feasibility.

Revenue Recognition—We derive revenue from sales of products, including appliances and software, and

services, including subscription, support and other services. Our appliances include operating system software
that is integrated into the appliance hardware and is deemed essential to its functionality. As a result, we account
for revenue in accordance with ASC 985-605 (formerly referred to as Statement of Position 97-2 (SOP 97-2)
Software Revenue Recognition), and all related interpretations.

No revenue can be recognized until all of the following criteria have been met:

•

Persuasive evidence of an arrangement exists. Binding contracts or purchase orders are generally used
to determine the existence of an arrangement.

• Delivery has occurred. Delivery occurs when we fulfill an order and title and risk of loss has been

transferred or upon delivery of the service contract registration code.

83

FORTINET, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

• The fee is fixed or determinable. We assess whether the fee is fixed or determinable based on the

payment terms associated with the transaction. In the event payment terms differ from our standard
business practices, the fees are deemed to be not fixed or determinable and revenue is recognized when
the payments become due, provided the remaining criteria for revenue recognition have been met.

• Collectability is probable. We assess collectability based primarily on creditworthiness as determined
by credit checks and analysis, as well as payment history. Payment terms generally range from 30 to
90 days from invoice date.

For arrangements which include customer acceptance criteria, no revenue is recognized prior to acceptance.

We recognize product revenue on sales to distributors that have no right of return and end-customers upon
shipment of the appliance, once all other revenue recognition criteria have been met. We also make sales through
distributors under agreements that allow for rights of returns. We recognize product revenue on sales made
through such distributors upon sale by the distributor to the end-customer, at which time the rights of return
lapse. Substantially all of our products have been sold in combination with services which consist of
subscriptions and/or support. Subscription services provide access to our antivirus, intrusion prevention, web
filtering, and anti-spam functionality. Support services include rights to unspecified software upgrades,
maintenance releases and patches, telephone and internet access to technical support personnel, and hardware
support.

We commence our subscription and support services on the date the customer registers the appliance. The

customer is then entitled to service for the stated contractual period beginning on the registration date.

We use the residual method to recognize revenue when an arrangement includes one or more elements to be

delivered at a future date and vendor-specific objective evidence (VSOE) of the fair value of all undelivered
elements exists. Under the residual method, the fair value of the undelivered elements is deferred and the
remaining portion of the contract fee is recognized as product revenue. In cases where VSOE of fair value of the
undelivered elements does not exist, it is typically due to a lack of VSOE on the subscription and support
services for that specific arrangement, revenue for the entire arrangement is recognized ratably over the
performance period of the undelivered elements. Revenue related to these arrangements is included in ratable
product and services revenue in the accompanying consolidated statements of operations. VSOE of fair value for
elements of an arrangement is based upon the pricing for those services when sold separately. Revenue for
professional services and training is recognized upon completion of the related services.

We offer certain sales incentives to channel partners. We reduce revenue for estimates of sales returns and

allowances. Additionally, in limited circumstances we may permit end-customers, distributors and resellers to
return our products, subject to varying limitations, for a refund within a reasonably short period from the date of
purchase. We estimate and record reserves for sales incentives and sales returns based on historical experience.

Accounts Receivable—Trade accounts receivable are recorded at the invoiced amount, net of allowances

for doubtful accounts and sales returns and allowances. The allowance for doubtful accounts is based on our
assessment of the collectability of customer accounts. We regularly review the allowance by considering factors
such as historical experience, credit quality, age of the accounts receivable balances and current economic
conditions that may affect a customer’s ability to pay. The reserve for sales returns and allowances is based on
specific criteria including agreements to provide rebates and other factors known at the time, as well as estimates
of the amount of goods shipped that will be returned. To determine the adequacy of the sales returns and
allowances, we analyze historical experience of actual rebates and returns as well as current product return
information.

84

FORTINET, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

Warranties—We generally provide a one-year warranty on hardware products and a 90-day warranty on

software. A provision for estimated future costs related to warranty activities is recorded as a component of cost
of product revenues when the product revenues are recognized, based upon historical product failure rates and
historical costs incurred in correcting product failures. In the event we change our warranty reserve estimates, the
resulting charge against future cost of sales or reversal of previously recorded charges may materially affect our
gross margins and operating results.

Accrued warranty activities are summarized as follows (in thousands):

Accrued warranty balance—beginning of the

period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warranty costs incurred . . . . . . . . . . . . . . . . . .
Provision for warranty . . . . . . . . . . . . . . . . . . . .
Adjustments to previous estimates . . . . . . . . . .

Accrued warranty balance—end of the

Fiscal Year Ended

December 31,
2009

December 28,
2008

December 30,
2007

$ 2,882
(1,502)
1,169
(292)

$ 1,744
(1,030)
2,252
(84 )

$ 1,187
(1,158)
1,524
191

period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 2,257

$ 2,882

$ 1,744

Recent Accounting Pronouncements

In September 2009, the EITF reached a consensus on ASC 605-25 (formerly referred to as EITF 08-1,
Revenue Arrangements with Multiple Deliverables). ASC 605-25 eliminates the criterion for objective and
reliable evidence of fair value for the undelivered products or services. Instead, revenue arrangements with
multiple deliverables should be divided into separate units of accounting if the deliverables meet both of the
following criteria:

• The delivered items have value to the customer on a standalone basis

•

If the arrangement includes a general right of return relative to the delivered items, delivery or
performance of the undelivered items is considered probable and substantially in the control of the
vendor.

The Issue eliminates the use of the residual method of allocation and requires, instead, that arrangement
consideration be allocated, at the inception of the arrangement, to all deliverables based on their relative selling
price (i.e., the relative selling price method). When applying the relative selling price method, a hierarchy is used
for estimating the selling price for each of the deliverables. The hierarchy establishes that the method for
determining estimated selling price should be chosen in the following order of priority:

• VSOE of the selling price;

• Third-party evidence (TPE) of the selling price – prices of the vendor’s or any competitor’s largely

interchangeable products or services, in standalone sales to similarly situated customers; and

• Best estimate of the selling price.

In September 2009, the EITF reached a consensus on ASC 985-605 (formerly referred to as EITF 09-3,

Certain Revenue Arrangements That Include Software Elements). Arrangements to sell joint hardware and
software products where the software and non-software components function together to deliver the product’s

85

FORTINET, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

essential functionality will no longer be scoped into software accounting rules, but will be subject to
non-software multiple element accounting guidance (ASC 605-25). ASC 985-605 provides a list of items to
consider when determining whether the software and non-software components function together to deliver a
product’s essential functionality. ASC 985-605 must be adopted for arrangements entered into beginning
January 1, 2011, and may be early-adopted. We are currently evaluating the impact of adopting ASC 985-605
and ASC 605-25 on our consolidated financial statements.

In April 2009, the FASB issued ASC 320-10 (formerly referred to as FASB Staff Position (FSP) FAS

No. 115-2 and FAS No. 124-2, Recognition and Presentation of Other-Than-Temporary Impairments). ASC
320-10 establishes a new method for recognizing and reporting other-than-temporary impairment of debt
securities and also contains additional disclosure requirements for both debt and equity securities. ASC 320-10 is
effective for interim and annual periods ending after June 15, 2009. The adoption of ASC 320-10 did not have a
material impact on our consolidated financial statements.

In April 2009, the FASB issued ASC 820-10 (formerly referred to as FSP FAS No. 157-4, Determining Fair

Value When the Volume and Level of Activity for the Asset or Liability Have Significantly Decreased and
Identifying Transactions That Are Not Orderly). ASC 820-10 provides additional guidance for estimating fair
value when the market activity for an asset or liability has declined significantly. ASC 820-10 is effective for
interim and annual periods ending after June 15, 2009 and will be applied prospectively. The adoption of ASC
820-10 did not have a material impact on our consolidated financial statements.

In December 2007, the FASB issued ASC 805 (formerly referred to as SFAS No. 141 (Revised 2007),

Business Combinations). ASC 805 establishes principles and requirements for how the acquirer of a business
recognizes and measures in its financial statements the identifiable assets acquired, the liabilities assumed, and
any non-controlling interest in the acquiree. ASC 805 also provides guidance for recognizing and measuring the
goodwill acquired in the business combination and determines what information to disclose to enable users of the
financial statements to evaluate the nature and financial effects of the business combination. We adopted ASC
805 for the fiscal year beginning January 1, 2009. The adoption of ASC 805 did not have a material impact on
our consolidated financial statements at the time of adoption.

In December 2007, the FASB issued ASC 810 (formerly referred to as SFAS No. 160, Non-controlling

Interests in Consolidated Financial Statements which amends Accounting Research Bulletin No. 51,
Consolidated Financial Statements), to establish accounting and reporting standards for the non-controlling
interest in a subsidiary and for the deconsolidation of a subsidiary. It clarifies that a non-controlling interest in a
subsidiary is an ownership interest in the consolidated entity that should be reported as equity separate and apart
from the parent’s equity in the consolidated financial statements. In addition to the amendments to ASC 810, this
statement amends ASC 260, so that earnings per share data will continue to be calculated the same way those
data were calculated before this statement was issued. ASC 810 is effective for fiscal years, and interim periods
within those fiscal years, beginning on or after December 15, 2008. The adoption of ASC 810 did not have a
material impact on our consolidated financial statements at the time of adoption.

86

FORTINET, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

2. SHORT-TERM INVESTMENTS AND FAIR VALUE MEASUREMENTS

The following table summarizes our short-term investments in available-for-sale securities (in thousands):

December 31, 2009

Amortized
Cost

Unrealized
Gains

Unrealized
Loss

Estimated Fair
Value

Available-for-sale securities:

U.S. government and agency securities . . .
Corporate debt securities . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . .
Commercial paper

$ 2,000
41,840
3,983

Total available-for-sale securities . . .

$47,823

$—
35
—

$ 35

$ (2)
—
—

$ (2)

$ 1,998
41,875
3,983

$47,856

December 28, 2008

Amortized
Cost

Unrealized
Gains

Unrealized
Losses

Estimated Fair
Value

Available-for-sale securities:

U.S. government and agency securities . . .
Corporate debt securities . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . .
Commercial paper

$19,961
26,304
21,282

Total available-for-sale securities . . .

$67,547

$ 89
—
53

$142

$—

(70)
—

$ (70)

$20,050
26,234
21,335

$67,619

The contractual maturities of our short-term investments are as follows (in thousands):

Due within one year . . . . . . . . . . . . . . . . . . . . . . . . . .
Due after one year . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

December 31,
2009

December 28,
2008

$47,856
—

$47,856

$65,604
2,015

$67,619

Available-for-sale securities are reported at fair value, with unrealized gains and losses, net of tax, included

as a separate component of stockholders’ equity (deficit) and in total comprehensive income (loss). Realized
gains and losses on available-for-sale securities are included in other income in our consolidated statements of
operations.

Realized gains (losses) from the sale of available-for-sale securities were not significant in any period

presented.

87

FORTINET, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

Fair Value Accounting—We adopted ASC 820 (formerly referred to as FASB Statement No. 157, Fair

Value Measurement) effective January 1, 2008. ASC 820 establishes a valuation hierarchy for disclosure of the
inputs to fair value measurement. This hierarchy prioritizes the inputs into three broad levels as follows:

Level 1—Inputs are unadjusted quoted prices in active markets for identical assets or liabilities.

Level 2—Inputs are quoted prices for similar assets and liabilities in active markets or inputs that are
observable for the assets or liabilities, either directly or indirectly through market corroboration, for substantially
the full term of the financial instruments.

Level 3—Inputs are unobservable inputs based on our own assumptions used to measure assets and

liabilities at fair value. The inputs require significant management judgment or estimation.

The following table presents the fair value of our financial assets as of December 31, 2009 and

December 28, 2008 using the ASC 820 input categories:

December 31, 2009

December 28, 2008

Quoted
Prices in
Active
Markets For
Identical
Assets

Significant
Other
Observable
Remaining
Inputs

Aggregate
Fair
Value

Quoted
Prices in
Active
Markets For
Identical
Assets

Significant
Other
Observable
Remaining
Inputs

(Level 1)

(Level 2)

(Level 1)

(Level 2)

Aggregate
Fair
Value

Total cash, cash equivalents and
available-for-sale investments:
U.S. government and agency

securities . . . . . . . . . . . . . . . . .
Corporate debt securities . . . . . . .
Commercial paper . . . . . . . . . . . .
Money market funds . . . . . . . . . .

$

1,998
41,875
3,983
179,444

$ —

41,875
—
179,444

$1,998
—
3,983
—

$ 20,050
40,070
29,803
16,825

$ —

39,262
—
16,825

$20,050
808
29,803
—

Cash equivalents and

available-for-sale investments . . . . .

227,300

$221,319

$5,981

106,748

$56,087

$50,661

Cash . . . . . . . . . . . . . . . . . . . . . . . . . . .

33,014

17,442

Total cash, cash equivalents and

available-for-sale
investments . . . . . . . . . . . . . . .

$260,314

Reported as:

Cash and cash equivalents . . . . . .
Short-term investments . . . . . . . .

$212,458
47,856

$124,190

$ 56,571
67,619

Total cash, cash equivalents and

available-for-sale
investments . . . . . . . . . . . . . . .

$260,314

$124,190

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

We classify investments within Level 1 if quoted prices are available in active markets.

We classify items in Level 2 if the investments are valued using observable inputs to quoted market prices,
benchmark yields, reported trades, broker/dealer quotes or alternative pricing sources with reasonable levels of
price transparency.

We did not hold financial assets or liabilities which were recorded at fair value using inputs in the Level 3

category as of December 31, 2009 and December 28, 2008.

3. INVENTORY

Inventory consisted of the following (in thousands):

Raw materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Finished goods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

December 31,
2009

December 28,
2008

$ 1,904
8,745

$10,649

$ 1,135
10,284

$11,419

4. PROPERTY AND EQUIPMENT—Net

Property and equipment consisted of the following (in thousands):

December 31,
2009

December 28,
2008

Evaluation units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Computer equipment and software . . . . . . . . . . . . . . . . . . . . . .
Furniture and fixtures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leasehold improvements and tooling . . . . . . . . . . . . . . . . . . . .

Total property and equipment

. . . . . . . . . . . . . . . . . . . . . .
Less: accumulated depreciation and amortization . . . . . . . . . . .

$ 8,449
8,827
1,191
4,134

22,601
(16,214)

$ 9,282
6,407
975
1,661

18,325
(14,900)

Property and equipment—net

. . . . . . . . . . . . . . . . . . . . . . . . . .

$ 6,387

$ 3,425

Depreciation expense was $5.0 million, $4.3 million and $4.1 million in 2009, 2008 and 2007, respectively.

5. ACQUISITIONS

On June 10, 2008, we completed the acquisition of certain technology assets of IPLocks, Inc. (IPLocks), a

privately-held company that provides database security and compliance solutions, for a cash payment of $1.0
million. The total purchase of the transaction was allocated to IPLocks’ tangible and identifiable intangible assets
acquired and liabilities assumed based on their estimated fair market values as of the acquisition date. The
purchase price allocation resulted in purchased net tangible assets of approximately $153,000 and purchased
identifiable intangible assets of approximately $847,000. Identifiable intangible assets consist of purchased
software and technology. The fair value assigned to identifiable intangible assets acquired is determined using
the income approach, which discounts expected future cash flows to present value using estimates and
assumptions determined by us. Purchased identifiable intangible assets are amortized on a straight-line basis over

89

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

three years. In the third quarter of 2009, we performed an impairment analysis and determined that the purchased
technology assets were impaired. As a result, we wrote off the remaining net book value of $444,000 associated
with these assets. The write-off is included in cost of product revenue in our consolidated statements of
operations for fiscal 2009.

6. INTANGIBLE ASSETS

On July 7, 2009, we acquired certain technology and fixed assets for $0.9 million in cash. We allocated
$428,000 to tangible assets and $472,000 to purchased technology assets. The purchased technology assets were
being amortized on a straight-line basis over the estimated life of the technology. In the fourth quarter of 2009,
we performed an impairment analysis and determined that the purchased technology assets were impaired. As a
result, we wrote off the remaining net book value of $185,000 associated with these assets. The write-off is
included in cost of product revenue in our consolidated statements of operations for fiscal 2009.

On October 23, 2008, we acquired certain technology assets for a warrant to purchase 120,000 shares of our

common stock at an exercise price of $7.47 per share. The warrant expires on October 23, 2011, and was only
exercisable subsequent to the closing of an initial public offering of securities by us. Upon the completion of our
initial public offering in November 2009, we recognized the fair value of this warrant as consideration for the
purchase of the acquired technology. We allocated the entire purchase price of $723,000 to the purchased
technology assets. In the fourth quarter of fiscal 2009, we performed an impairment analysis and determined that
the purchased technology assets were impaired. As a result, we wrote off the net book value of $723,000
associated with these assets. The write-off is included in cost of product revenue in our consolidated statements
of operations for fiscal 2009. The warrant remained outstanding as of December 31, 2009.

On September 22, 2008, we acquired certain technology and fixed assets for a cash payment of $1.0 million

and the issuance of a warrant to purchase 150,000 shares of our common stock at an exercise price of $7.47 per
share. The warrant expires on September 22, 2011 and was only exercisable subsequent to the closing of an
initial public offering of securities by us. We allocated $119,000 to the tangible assets and $881,000 to the
purchased technology assets. The purchased technology assets were being amortized on a straight-line basis over
the estimated life of three years. In the second quarter of 2009, we performed an impairment analysis and
determined that the purchased technology assets were impaired. As a result, we wrote off the remaining net book
value of $280,000 associated with these assets, net of escrow reimbursement received of $351,000. The write-
off is included in cost of product revenue in our consolidated statements of operation for fiscal 2009. Upon the
completion of our initial public offering in November 2009, we recognized the fair value of this warrant of
$755,000 as additional expense in cost of product revenue. The warrant was exercised in connection with our
initial public offering.

As a result of amortization recognized and write-offs recorded, we did not have any intangible assets as of

December 31, 2009. The following table presents the detail of our purchased intangible assets with definite lives
included in other assets as of December 28, 2008 (in thousands):

Purchased intangibles . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$1,728

$322

$1,406

December 28, 2008

Gross

Accumulated
Amortization

Net

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

7. INCOME (LOSS) PER SHARE

Net income per share information for the year ended December 31, 2009 gives effect to the repurchase of
convertible preferred shares (Note 10). The excess of the fair value of the consideration paid for such preferred
stock over the carrying value of the preferred stock represents a return to the preferred shareholders and is treated
in a manner similar to the treatment of dividends paid to the holders of preferred stock in the computation of
earnings per share. As a result, the premium paid is subtracted from net income attributable to common
stockholders in determining earnings per share. Basic net income per share is computed by dividing net income
attributable to common stockholders by the weighted-average number of common shares outstanding during the
period. Diluted net income per share is computed by using the weighted-average number of common shares
outstanding, including the dilutive effects of convertible preferred stock on an if-converted basis plus the dilutive
effects of stock options.

In November 2009, all of our outstanding convertible preferred stock converted into common stock in
connection with our initial public offering. For periods that ended prior to such conversion, net income per share
information is computed using the two-class method. The convertible preferred shares were entitled to receive
annual non-cumulative dividends of $0.02, $0.05, $0.12, $0.12 and $0.30 per share for Series A, B, C, D, and E,
respectively, payable prior and in preference to holders of common stock. After the payment of such dividends,
convertible preferred shares were further entitled to receive a proportionate amount of any dividends paid on
common stock on an if-converted basis. As a result of such dividend rights, the convertible preferred shares are
considered to be participating securities. Under the two-class method of computing earnings per share, net
income attributable to common stockholders is computed by an adjustment to subtract from net income the
portion of current year earnings that the preferred shareholders would have been entitled to receive pursuant to
their dividend rights had all of the year’s earnings been distributed. No such adjustment to earnings is made
during periods with a net loss, as the holders of the convertible preferred shares had no obligation to fund losses.
Basic net income (loss) per share is computed by dividing net income attributable to common stockholders by the
weighted-average number of common shares outstanding during the period. Diluted net income (loss) per share is
computed by using the weighted-average number of common shares outstanding, plus, for periods with net
income attributable to common stock, the dilutive effects of stock options.

Subsequent to the issuance of our consolidated financial statements for the year ended December 28, 2008,
we identified an error, which we believe is immaterial, related to incorrectly computing our fiscal 2008 basic and
diluted net income per share by using the if-converted method rather than the two-class method. Accordingly,
corrections have been made herein to the previously reported net income per share amounts for fiscal 2008. Basic
and diluted net income per share amounts for fiscal 2008 were previously reported as $0.37 and $0.11,
respectively. Using the two-class method, our basic and diluted net income per share amounts for fiscal 2008 are
$0.02 and $0.02, respectively, a decrease in the per share amounts previously reported by $.35 and $.09,
respectively. The correction in the 2008 net income per share calculation did not impact the total net income
previously reported.

A similar correction will be made in the future filing of our Form 10-Q for the quarter ending September 30,

2010, to reflect a decrease in our basic and diluted EPS for the nine months ended September 30, 2009 from
$0.34 and $0.11, respectively, previously reported in our prospectus as part of our initial public offering to $0.04
and $0.04, respectively, as corrected.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

A reconciliation of the numerator and denominator used in the calculation of basic and diluted net income

(loss) per share follows:

Numerator:
Net income (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Premium paid on repurchase of convertible preferred

Years Ended

December 31,
2009

December 28,
2008

December 30,
2007

$60,179

$ 7,363

$(21,842)

shares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Income allocated to participating securities . . . . . . . . . .

(9,266)
—

—
(6,910)

—
—

Net income (loss) attributable to common stockholders-
basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Undistributed earnings reallocated to common stock . .

Net income (loss) attributable to common stockholders-
diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$50,913
—

$

453
90

$(21,842)

—

$50,913

$

543

$(21,842)

Denominator:
Basic shares:

Weighted-average common shares outstanding-

basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

26,334

20,017

19,276

Diluted shares:

Weighted-average common shares outstanding-

basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

26,334

20,017

19,276

Effect of potentially dilutive securities:

Employee stock options . . . . . . . . . . . . . . . . .
Warrants to purchase common stock . . . . . . .
Convertible preferred stock . . . . . . . . . . . . . .

5,871
19
32,995

6,613
12
—

—
—
—

Weighted-average shares used to compute diluted net

income (loss) per share . . . . . . . . . . . . . . . . . . . . . . . .

65,219

26,642

19,276

Net income (loss) per share attributable to common

stockholders:

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

1.93

0.78

$

$

0.02

0.02

$

$

(1.13)

(1.13)

Net income has been allocated to the common and preferred stock based on their respective rights to share

in dividends.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

The following outstanding options and convertible preferred stock were excluded from the computation of

diluted net income (loss) per common share applicable to common stockholders for the periods presented as their
effect would have been antidilutive (in thousands):

Options to purchase common stock . . . . . . . . .
Convertible preferred stock (as-converted

December 31,
2009

Years Ended

December 28,
2008

December 30,
2007

4,584

5,010

12,413

basis) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

—

—

40,480

8. DEFERRED REVENUES

Deferred revenues consisted of the following (in thousands):

December 31,
2009

December 28,
2008

Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratable products and services . . . . . . . . . . . . . . . . . .

$

4,141
168,314
29,475

Total deferred revenues . . . . . . . . . . . . . . . . . . . . . . .

$201,930

Reported As:

Short-term . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Long-term . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$140,537
61,393

Total deferred revenues . . . . . . . . . . . . . . . . . . . . . . .

$201,930

$

2,731
140,407
28,479

$171,617

$118,297
53,320

$171,617

9. COMMITMENTS AND CONTINGENCIES

Leases and Minimum Royalties—We lease our facilities under various noncancelable operating leases,

which expire through the year 2014. Rent expense was $6.1 million, $4.9 million and $2.9 million for the years
ended December 31, 2009, December 28, 2008 and December 30, 2007, respectively. Rent expense is recognized
using the straight-line method over the term of the lease.

We entered into a Settlement and Patent License Agreement with Trend Micro in January 2006 (see

Litigation section below). The aggregate future noncancelable minimum rental payments on operating leases and
minimum royalties payable if we continued paying under the Trend Micro Settlement and License Agreement as
of December 31, 2009 are as follows (in thousands):

Rental
Payment

Royalty

Fiscal Years:

2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2012 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2013 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2014 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thereafter

$ 6,220
4,957
3,414
2,479
872
480

$3,000
1,000
1,000
1,000
500
500

Total

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$18,422

$7,000

93

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

Contract Manufacturer Commitments—Our independent contract manufacturers procure components
and build our products based on our forecasts. These forecasts are based on estimates of future demand for our
products, which are in turn based on historical trends and an analysis from our sales and marketing organizations,
adjusted for overall market conditions. In order to reduce manufacturing lead times and plan for adequate
component supply, we may issue purchase orders to some of our independent contract manufacturers which may
not be cancelable. As of December 31, 2009, we had $11.8 million of open purchase orders with our independent
contract manufacturers that may not be cancelable.

Litigation—In May 2004, Trend Micro Incorporated (“Trend”) filed a complaint against us alleging patent

infringement. On January 26, 2006, we entered into a Settlement and Patent License Agreement with Trend
Micro pursuant to which Trend agreed to grant us a nonexclusive worldwide license to the Trend patents at issue.
Pursuant to the Settlement and License Agreement, we paid a one-time amount of $15.0 million in March 2006
and the Settlement and License Agreement included subsequent royalties based on the greater of minimum
royalty amounts and a percentage of certain of our revenue through 2015. In November 2008, we filed a
complaint against Trend Micro in the United States District Court for the Northern District of California alleging,
among other claims, that the patents that are the basis for the ongoing royalty payments are invalid and
consequently that we have no contractual obligation to pay the royalties. Trend Micro moved to dismiss the case,
and, in June 2009, the court dismissed the case without prejudice on procedural grounds, and we appealed the
dismissal in July 2009. On August 6, 2009, Trend Micro filed a complaint against us in the Superior Court of the
State of California for Santa Clara County alleging breach of contract and seeking a declaratory judgment that we
are obligated to make certain specified royalty payments to Trend Micro. In December 2009, we withdrew our
appeal of the prior dismissal without prejudice, and filed a new complaint against Trend Micro in the United
States District Court for the Northern District of California alleging, among other claims, that the patents that are
the basis for the ongoing royalty payments are invalid and consequently that we have no contractual obligation to
pay the royalties. We have continued to accrue expense based on the quarterly royalties provided for in the
settlement and license agreement.

In January 2009, we filed a complaint against Palo Alto Networks, Inc., in the United States District Court

for the Northern District of California alleging, among other claims, patent infringement. On September 4, 2009,
Palo Alto Networks filed a counterclaim against us alleging patent infringement. In May 2009, Enhanced
Security Research, LLC, or ESR, a non-practicing entity, filed a complaint in the United States District Court for
the District of Delaware alleging patent infringement by us and other defendants. On August 3, 2009, ESR filed a
substantially similar complaint against us in the same court alleging infringement of the same patents. In
September 2009, Deep Nines, Inc. filed, but did not serve us with, a complaint against us in the United States
District Court for the Eastern District of Texas alleging that our products infringe certain of their patents. The
Palo Alto Networks and ESR cases are currently at an early stage of the litigation process. The Deep Nines case
has not yet been served, and the deadline for service has been extended by the Court until March 8, 2010.

In addition to the above matters, we are subject to other litigation in the course of business. Although no
assurance may be given, we believe that we are not presently a party to any litigation the outcome of which will
individually or in the aggregate be reasonably expected to have a material adverse effect on our business,
operating results, cash flows, or financial condition.

Indemnification—Under the indemnification provisions of our standard sales contracts, we agree to defend
our customers against third-party claims asserting infringement of certain intellectual property rights, which may
include patents, copyrights, trademarks, or trade secrets, and to pay judgments entered on such claims. Our
exposure under these indemnification provisions is generally limited to the total amount paid by our customer

94

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

under the agreement. However, certain agreements include indemnification provisions that could potentially
expose us to losses in excess of the amount received under the agreement. To date, there have been no claims
under such indemnification provisions.

10. STOCKHOLDERS’ EQUITY

Common Shares Reserved for Issuance—At December 31, 2009, we had reserved shares of common

stock for issuance as follows (in thousands):

Reserved under stock option plans . . . . . . . . . . . . . . . . . . . . . . .
Warrants to purchase common stock . . . . . . . . . . . . . . . . . . . . .

26,255
141

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

26,396

Warrants—In conjunction with an agreement to purchase certain technology assets (Note 6), we issued a

warrant to purchase 120,000 shares of our common stock at an exercise price of $7.47 per share. The warrant
expires on October 23, 2011.

Convertible Preferred Stock—In connection with the initial public offering, our authorized and

outstanding convertible preferred stock was converted into common stock as of December 31, 2009. Authorized
and outstanding convertible preferred stock was as follows as of December 28, 2008 (in thousands):

Authorized
Shares

Outstanding
Shares

Series A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Series B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Series C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Series D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Series E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4,000
5,000
6,000
15,000
10,500

40,500

4,000
5,000
6,000
15,000
10,480

40,480

Amount

$

900
2,794
8,689
28,663
53,322

$94,368

Stock Repurchase—During the first six months of fiscal 2009, our Board of Directors approved a stock

repurchase authorization. This repurchase authorization allowed us to repurchase up to $20.0 million of our
convertible preferred and common stock at $4.25 per share through June 17, 2009. This repurchase authorization
expressly excluded our board members and senior management. During the first six months of fiscal 2009, we
repurchased 704,632 shares of common stock and 3,004,165 shares of convertible preferred stock for a total
consideration of $15.7 million.

11. STOCK PLANS

2000 Stock Plan—During 2000, we adopted the 2000 Stock Option Plan (the Plan), which includes both
incentive and non-statutory stock options. Under the Plan, we may grant options to purchase up to 21,500,000
shares of common stock to employees, directors and other service providers at prices not less than the fair market
value at date of grant for incentive stock options and not less than 85% of fair market value for non-statutory
options. Options granted to a person who, at the time of the grant, owns more than 10% of the voting power of all
classes of stock shall be at no less than 110% of the fair market value and expire five years from the date of
grant. All other options generally have a contractual term of 10 years. Options generally vest over four years.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

2008 Stock Plan—On January 28, 2008, our Board of Directors approved the 2008 Stock Plan (the 2008 Plan)

and French Sub-Plan, which includes both incentive and non-statutory stock options. The maximum aggregate
number of shares which may be subject to options and sold under the 2008 Plan and the French Sub-Plan is
5,000,000 shares, plus any shares that, as of the date of stockholder approval of the 2008 Plan, have been reserved
but not issued under the 2000 Plan or shares subject to stock options or similar awards granted under the 2000 Plan
that expire or otherwise terminate without having been exercised in full or that are forfeited to or repurchased by us.

Under the 2008 Plan and the French Sub-Plan, we may grant options to employees, directors and other
service providers. In the case of an incentive stock option granted to an employee, who at the time of grant, owns
stock representing more than 10% of the total combined voting power of all classes of stock, the exercise price
shall be no less than 110% of the fair market value per share on the date of grant and expire five years from the
date of grant, and options granted to any other employee, the per share exercise price shall be no less than 100%
of the fair market value per share on the date of grant. In the case of a nonstatutory stock option and options
granted to other service providers, the per share exercise price shall be no less than 100% of the fair market value
per share on the date of grant.

2009 Equity Incentive Plan—On November 17, 2009, our Board of Directors approved the 2009 Equity

Incentive Plan (the 2009 Plan) and French Sub-Plan, which includes awards of stock options, stock appreciation
rights, restricted stock, restricted stock units, and performance units or performance shares. The maximum
aggregate number of shares that may be issued under the Plan is 9,000,000 shares, plus any shares subject to
stock options or similar awards granted under the 2008 Stock Plan and the Amended and Restated 2000 Stock
Plan that expire or otherwise terminate without having been exercised in full and shares issued pursuant to
awards granted under the 2008 Stock Plan and the Amended and Restated 2000 Stock Plan that are forfeited to or
repurchased by the Company, with the maximum number of shares to be added to the Plan pursuant to such
terminations, forfeitures and repurchases not to exceed 21,000,000 shares. The shares may be authorized, but
unissued or reacquired common stock. The number of shares available for issuance under the 2009 Plan will be
increased on the first day of each fiscal year beginning with the 2011 fiscal year, in an amount equal to the lessor
of (i) 7,000,000 shares, (ii) five percent (5%) of the outstanding shares on the last day of the immediately
preceding fiscal year, or (iii) such number of shares determined by the Board.

Under the 2009 Plan and the French Sub-Plan, we may grant awards to employees, directors and other
service providers. In the case of an incentive stock option granted to an employee who, at the time of the grant,
owns stock representing more than 10% of the voting power of all classes of stock, the exercise price shall be no
less than 110% of the fair market value per share on the date of grant and expire five years from the date of grant,
and options granted to any other employee, the per share exercise price shall be no less than 100% of the fair
market value per share on the date of grant. In the case of a non statutory stock option and options granted to
other service providers, the per share exercise price shall be no less than 100% of the fair market value per share
on the date of grant. Options granted to individuals owning less than 10% of the total combined voting power of
all classes of stock generally have a contractual term of seven years and options generally vest over four years.

Stock-based compensation under ASC 718—Effective January 1, 2006, we adopted ASC 718, which

requires compensation costs related to share-based transactions, including employee stock options, to be
recognized in the financial statements based on fair value. Under ASC 718, the fair value of each option award is
estimated on the grant date using the Black-Scholes option pricing model. We determined weighted-average
valuation assumptions as follows:

Valuation method—We estimate the fair value of stock options granted using the Black-Scholes valuation

model.

96

FORTINET, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

Expected Term—The expected term represents the period that our stock-based awards are expected to be
outstanding. As we do not have sufficient historical experience for determining the expected term of the stock
option awards granted, we have based our expected term on the simplified method available under ASC 718-10
(formerly referred to as Staff Accounting Bulletin 110).

Expected Volatility—The computation of expected volatility for the years ended December 31, 2009, 2008
and 2007 is based on the historical and implied stock volatility of comparable companies from a representative
peer group selected based on industry and market capitalization data as we did not have a sufficient trading
history.

Fair Value of Common Stock—The fair value of the shares of common stock that underlie the stock options

we have granted has historically been determined by our board of directors. Because there has been no public
market for our common stock, prior to our initial public offering in November 2009, our board has determined
the fair value of our common stock at the time of grant of the option by considering a number of objective and
subjective factors, our sales of preferred stock to unrelated third parties, our operating and financial performance,
the lack of liquidity of our capital stock and trends in the broader network security and computer networking
market.

Risk-Free Interest Rate—We base the risk-free interest rate used in the Black-Scholes valuation model on

the implied yield available on U.S. Treasury zero-coupon issues with an equivalent remaining term.

Expected Dividend—The expected dividend weighted-average assumption is based on our current

expectations about our anticipated dividend policy.

The following table summarizes the weighted-average assumptions relating to our stock options as follows:

Dividend rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Risk-free interest rate . . . . . . . . . . . . . . . . . . . . . . . .
Expected term in years . . . . . . . . . . . . . . . . . . . . . . .
Volatility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

December 31,
2009

—
1.3-2.3%
4.5-4.6
43-52%

Years Ended

December 28,
2008

—
2.3-3.3%
4.5-4.6

44-47%

December 30,
2007

—
4.9%
6.1
49%

Stock-based compensation expense is included in costs and expenses as follows (in thousands):

December 31,
2009

Years Ended

December 28,
2008

December 30,
2007

Cost of product revenue . . . . . . . . . . . . . . . . . . . . . .
Cost of services revenue . . . . . . . . . . . . . . . . . . . . . .
Research and development
. . . . . . . . . . . . . . . . . . . .
Sales and marketing . . . . . . . . . . . . . . . . . . . . . . . . .
General and administrative . . . . . . . . . . . . . . . . . . . .

$

102
658
1,963
3,020
1,718

$

67
400
1,049
2,512
1,271

$ 7,461

$ 5,299

$ 553
416
1,452
3,928
2,983

$9,332

97

FORTINET, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

A summary of the option activity under our stock plans and changes during the reporting periods are

presented below (in thousands, except per share amounts):

Options Outstanding

Weighted-
Average
Exercise
Price

Weighted-
Average
Remaining
Contractual
Life (Years)

Aggregate
Intrinsic
Value

Shares
Available
for Grant

Number
of Shares

Balance—December 31, 2006 (6,198 shares were vested at a

weighted-average exercise price of $1.24 per share)

. . . . . . .

4,073 13,171

$1.62

Granted (weighted-average fair value of $3.62 per

(600)
share) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forfeited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1,172
Exercised (aggregate intrinsic value of $35) . . . . . . . . . . . . —

600
(1,172)
(19)

7.44
1.99
1.02

Balance—December 30, 2007 (9,111 shares were vested at a

weighted-average exercise price of $1.46 per share)

. . . . . . .

4,645 12,580

1.86

Additional shares authorized . . . . . . . . . . . . . . . . . . . . . . . .
Granted (weighted-average fair value of $2.46 per

5,000

—

7,232
share) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forfeited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(2,635)
Exercised (aggregate intrinsic value of $7,119) . . . . . . . . . — (1,444)

(7,232)
2,635

7.47
3.95
1.47

Balance—December 28, 2008 (9,125 shares were vested at a

weighted-average exercise price of $2.26 per share)

. . . . . . .

5,048 15,733

4.12

Additional shares authorized . . . . . . . . . . . . . . . . . . . . . . . .
Granted (weighted-average fair value of $2.86 per

6,887

—

4,203
share) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forfeited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(1,317)
Exercised (aggregate intrinsic value of $10,490) . . . . . . . . — (1,414)

(4,203)
1,317

7.99
6.71
1.91

Balance—December 31, 2009 . . . . . . . . . . . . . . . . . . . . . . . . . . .

9,049 17,205

Options vested and expected to vest—December 31, 2009 . . . .
Options exercisable—December 31, 2009 . . . . . . . . . . . . . . . . .

16,802
10,252

$4.99
$3.32

5.13
4.65

$211,427
$146,143

At December 31, 2009, total compensation cost related to unvested stock-based awards granted to

employees under our stock plans but not yet recognized was $17.5 million, net of estimated forfeitures. This cost
is expected to be amortized on a straight-line basis over a weighted-average period of 2.61 years. Future option
grants will increase the amount of compensation expense to be recorded in these periods.

The total fair value of awards vested under our stock plans was $5.5 million, $3.8 million and $2.5 million

for the fiscal years ended December 31, 2009, December 28, 2008 and December 30, 2007, respectively.

In January 2007 we determined that we were required under Section 12(g) of the Securities Exchange Act of

1934 to register our common stock and options to acquire our common stock. Upon such determination, our
board of directors suspended all further grants and exercises of options. In addition, in January 2007, our board of
directors extended the exercise period of vested stock options for certain terminated employees to April 30, 2008
to ensure compliance with securities laws. This extension was a modification under ASC 718, resulting in
incremental expense.

98

FORTINET, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

In accordance with ASC 718 and ASC 815-40 (formerly referred to as EITF 00-19, Accounting for

Derivative Financial Instruments Indexed to, and Potentially Settled in, a Company’s Own Stock), we classified
the options as liability awards at the time of modification as the option exercises would likely require the
issuance of registered shares. Accordingly, at the end of each quarter in the year ended December 30, 2007, we
determined the fair value of these options utilizing the Black-Scholes valuation model and changes in fair value
of the options are included in stock-based compensation. During the year ended December 30, 2007, we recorded
$7.6 million of stock-based compensation expense related to the modification.

Effective December 7, 2007, when the SEC amended Section 12(g) of the Securities Exchange Act of 1934,

the liability awards were reclassified into equity as we determined that we were no longer required to issue
registered shares to settle the awards. As a result of the reclassification, $6.1 million was reclassified from
current liabilities to additional paid-in capital.

Additional information regarding options outstanding as of December 31, 2009, is as follows (in thousands

except per share amounts):

Exercise Prices

Options Outstanding

Options Exercisable

Weighted-
Average
Remaining
Contractual
Life (Years)

Weighted-
Average
Exercise
Price

Number
Exercisable

Weighted-
Average
Exercise
Price

Number
Outstanding

$0.05–$0.95 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.95 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.15–7.44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2,775
2,775
2,381
8,350
279
267
278
100

$0.05–$12.50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17,205

3.17
5.24
5.65
5.48
6.04
6.44
6.66
6.88

5.14

$ 0.64
1.95
3.55
7.47
7.68
9.30
11.00
12.50

2,775
2,770
1,933
2,769
5

—
—
—

5.05

10,252

$0.64
1.95
3.14
7.47
7.68
—
—
—

3.32

Non-employees—During the years ended December 31, 2009 and December 28, 2008, we issued to non-

employees in exchange for services, options to purchase 13,000 and 29,000 shares of common stock,
respectively, at a range of exercise prices from $7.47 to $11.00 per share. No options were granted to non-
employees in exchange for services during the year ended December 30, 2007. These options vest over periods of
up to 48 months, and in accordance with ASC 505-50 (formerly referred to as Emerging Issues Task Force Issue
No. 96-18, Accounting for Equity Instruments that are Issued to Other Than Employees for Acquiring, or in
Conjunction with Selling Goods or Services), we accounted for these options as variable awards. The options
were valued using the Black-Scholes option pricing model with the following weighted-average assumptions:

Fiscal Year

2009

2008

2007

Dividend yield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Risk-free interest rate . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expected term, in years . . . . . . . . . . . . . . . . . . . . . . . . . . .
Volatility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

99

—

—
1.3 - 2.3% 2.3 - 3.6% 4.3 - 4.9%
5.2 - 7.5
6.0 - 8.5
43 - 52% 44 - 51% 49 - 56%

6.0 - 9.0

—

FORTINET, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

12. INCOME TAXES

The provision for income taxes for the periods ended is as follows (in thousands):

December 31,
2009

December 28,
2008

December 30,
2007

Current:

Federal . . . . . . . . . . . . . . . . . . . . . . . . . . . .
State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 4,882
1,003
1,173

Total current

. . . . . . . . . . . . . . . . . . .

7,058

Deferred:

Federal . . . . . . . . . . . . . . . . . . . . . . . . . . . .
State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total deferred . . . . . . . . . . . . . . . . . .

(35,331)
(3,850)
(543)

(39,724)

$1,332
589
(243)

1,678

—
—
210

210

$ 179
6
1,771

1,956

—
—
(175)

(175)

Provision for (benefit from) income taxes . . . .

$(32,666)

$1,888

$1,781

The provision for income taxes differs from the amount computed by applying the statutory federal income

tax rate as follows (in thousands):

December 31,
2009

December 28,
2008

December 30,
2007

Tax at federal statutory tax rate . . . . . . . . . . . . .
Stock-based compensation expense . . . . . . . . .
. . . . . . . . . .
State taxes—net of federal benefit
Research and development credit . . . . . . . . . . .
Foreign income taxed at different rates . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Change in valuation allowance . . . . . . . . . . . . .

$ 9,629
1,311
821
(356)
(1,064)
1,202
(44,209)

Total provision for income taxes . . . . . . . . . . . .

$(32,666)

$ 3,237
1,049
573
(199)
(3,047)
721
(446)

$ 1,888

$(7,021)
1,258
(432)
(179)
620
930
6,605

$ 1,781

The income tax benefits associated with dispositions from employee stock transactions of $1.3 million for

fiscal 2009 were recognized as additional paid-in capital. Amounts prior to fiscal 2009 were not material.

100

FORTINET, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

The tax effects of temporary differences that give rise to significant portions of the deferred tax assets as of

each of the years ended are presented below (in thousands):

Deferred tax assets:

Net operating loss carryforward . . . . . . . . . . . . .
Deferred revenue . . . . . . . . . . . . . . . . . . . . . . . .
Nondeductible reserves and accruals . . . . . . . . .
Depreciation and amortization . . . . . . . . . . . . . .
General business credit carryforward . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other

Total deferred tax assets . . . . . . . . . . . . . . .
Valuation allowance . . . . . . . . . . . . . . . . . . . . . . . . . .

December 31,
2009

December 28,
2008

$ 3,144
21,915
13,262
1,412
1,574
16

41,323
—

$ 18,327
9,276
11,651
768
2,137
101

42,260
(42,191)

Net deferred tax assets . . . . . . . . . . . . . . . . . . . . . . . .

$41,323

$

69

In assessing the realizability of deferred tax assets, we considered whether it is more likely than not that
some portion or all of our deferred tax assets will be realized. The ultimate realization of deferred tax assets is
dependent upon the generation of future taxable income during the periods in which those temporary differences
become deductible. During the fourth quarter of 2009 we concluded that it was more likely than not that we
would be able to realize the benefit of our deferred tax assets in the future. As a result, we released all of the
valuation allowance on our net deferred tax assets.

As of December 31, 2009, we had federal and state net operating loss carryforwards of approximately
$3.5 million and $33.4 million, respectively. The federal and state net operating loss carryforwards begin to
expire in the year 2021 and 2012, respectively. Internal Revenue Code (IRC) §382 imposes significant
restrictions on the utilization of net operating loss carryforwards. Our ability to use our net operating loss
carryforwards to offset any future taxable income will be subject to limitations attributable to equity transactions
that would result in a change of ownership as defined by Section 382 of the Internal Revenue Code of 1986, as
amended, or the Internal Revenue Code. As of December 31, 2009, we have tax credit carryforwards available to
offset our future federal and state taxes of approximately $0.4 million and $0.6, respectively. The federal tax
credits begin to expire in 2021. The state credits carry forward indefinitely.

We have not recorded U.S. income tax on approximately $14.2 million of foreign earnings that are deemed

to be permanently reinvested overseas. The unrecognized deferred tax liability is not material.

On January 1, 2007, we adopted the provisions of ASC 740-10. As a result of applying the provisions of

ASC 740-10, there were no additional liabilities for material unrecognized tax benefits and no reduction in
accumulated deficit as of January 1, 2007, and no additional accrued interest and penalties were recognized as of
January 1, 2007. At December 31, 2009, we had $3.4 million of unrecognized tax benefits, of which, if
recognized, $3.4 million would affect our effective tax rate. Our policy is to include accrued penalty and interest
related to uncertain tax benefits in income tax expense. As of December 31, 2009, accrued interest and penalties
were not significant.

101

FORTINET, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

The aggregate changes in the balance of unrecognized tax benefits are as follows:

December 31,
2009

Years Ended

December 28,
2008

December 30,
2007

Balance, beginning of year . . . . . . . . . . . . . . . .

$1,952

$1,928

$1,259

Increases for tax provisions related to the

current year . . . . . . . . . . . . . . . . . . . . . .

Increases for tax provisions related to the

prior year . . . . . . . . . . . . . . . . . . . . . . . .

440

995

24

—

669

—

Balance, end of year . . . . . . . . . . . . . . . . . . . . .

$3,387

$1,952

$1,928

As of December 31, 2009 and December 28, 2008, $2.5 million and $746,000 of the amounts reflected
above were recorded as a liability and included in other non-current liabilities in our consolidated balance sheet.
As of December 31, 2009, income tax payable of $139,000 was included in accrued liabilities.

As of December 31, 2009, there were no unrecognized tax benefits that we expect would change

significantly over the next 12 months.

We file income tax returns in the U.S. federal jurisdiction, and various U.S. state and foreign jurisdictions.
As we have net operating loss carryforwards for U.S. federal and state jurisdictions, the statute of limitations is
open for all tax years. Generally, we are no longer subject to non-U.S. income tax examinations by tax authorities
for tax years prior to 2004.

13. EMPLOYEE BENEFIT PLAN

We have established a 401(k) tax-deferred savings plan (the 401(k) Plan) which permits participants to

make contributions by salary deduction pursuant to Section 401(k) of the Internal Revenue Code. We are
responsible for administrative costs of the 401(k) Plan and have made no contributions to the 401(k) Plan since
inception.

14. CERTAIN RELATIONSHIPS AND RELATED PARTY TRANSACTIONS

During the years ended December 31, 2009, December 28, 2008 and December 30, 2007, we paid

compensation of $166,000, $142,000 and $148,000, respectively, to two employees who are directly related to a
former board member.

On January 31, 2008, we entered into a 23-month non-cancelable facility lease agreement with an entity
affiliated with one of our board members. Under the terms of the agreement, in 2008, we paid approximately
$284,000 for tenant improvements and $316,000 for a refundable deposit. For the years ended December 31,
2009 and December 28, 2008 we paid $917,000 and $757,000, respectively, for office rent and operating
expenses. The lease expired on December 31, 2009.

15. SEGMENT INFORMATION

ASC 280 (formerly referred to as SFAS No. 131, Disclosures about Segments of an Enterprise and Related
Information), establishes standards for reporting information about operating segments. Operating segments are
defined as components of an enterprise about which separate financial information is available that is evaluated

102

FORTINET, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)
YEARS ENDED DECEMBER 31, 2009, DECEMBER 28, 2008 AND DECEMBER 30, 2007

regularly by the chief operating decision maker in deciding how to allocate resources and in assessing
performance. Our chief operating decision maker is our chief executive officer. Our chief executive officer
reviews financial information presented on a consolidated basis, accompanied by information about revenue by
geographic region for purposes of allocating resources and evaluating financial performance. We have one
business activity, and there are no segment managers who are held accountable for operations, operating results
and plans for levels or components below the consolidated unit level. Accordingly, we are considered to be in a
single reporting segment and operating unit structure.

Revenue by geographic region is based on the billing address of the customer. The following tables set forth

revenue, interest income and property and equipment by geographic region (in thousands):

Revenue

Americas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Europe, Middle East and Africa . . . . . . . . . . . .
Asia Pacific and Japan . . . . . . . . . . . . . . . . . . . .

December 31,
2009

$ 92,621
95,886
63,608

Total revenue . . . . . . . . . . . . . . . . . . . . . . .

$252,115

Interest Income

Americas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Europe, Middle East and Africa . . . . . . . . . . . .
Asia Pacific and Japan . . . . . . . . . . . . . . . . . . . .

December 31,
2009

$

1,953
27
1

Years Ended

December 28,
2008

$ 75,367
79,755
56,669

$211,791

Years Ended

December 28,
2008

$

2,596
15
3

December 30,
2007

$ 55,461
54,722
45,183

$155,366

December 30,
2007

$

3,486
17
4

Total interest income . . . . . . . . . . . . . . . . .

$

1,981

$

2,614

$

3,507

Property and Equipment

December 31,
2009

December 30,
2008

Americas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Europe, Middle East and Africa . . . . . . . . . . . .
Asia Pacific and Japan . . . . . . . . . . . . . . . . . . . .

$

4,988
504
895

$

2,387
384
654

Total property and equipment—net

. . . . .

$

6,387

$

3,425

103

ITEM 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

None.

ITEM 9A. Controls and Procedures

Internal Control Over Financial Reporting

This Annual Report on Form 10-K does not include a report of management’s assessment regarding internal

control over financial reporting or an attestation report of the Company’s independent registered public
accounting firm, on the Company’s internal control over financial reporting due to a transition period established
by rules of the Securities and Exchange Commission for newly public companies.

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our chief executive officer and chief financial officer, evaluated

the effectiveness of our disclosure controls and procedures pursuant to Rule 13a-15 under the Securities
Exchange Act of 1934 as of the end of the period covered by this Annual Report on Form 10-K. The evaluation
included certain internal control areas in which we have made and are continuing to make changes to improve
and enhance controls. In designing and evaluating the disclosure controls and procedures, management
recognized that any controls and procedures, no matter how well designed and operated, can provide only
reasonable assurance of achieving the desired control objectives. In addition, the design of disclosure controls
and procedures must reflect the fact that there are resource constraints and that management is required to apply
its judgment in evaluating the benefits of possible controls and procedures relative to their costs.

Based on that evaluation, our chief executive officer and chief financial officer concluded that our

disclosure controls and procedures are effective to provide reasonable assurance that information we are required
to disclose in reports that we file or submit under the Exchange Act is recorded, processed, summarized and
reported within the time periods specified in Securities and Exchange Commission rules and forms, and that such
information is accumulated and communicated to our management, including our chief executive officer and
chief financial officer, as appropriate, to allow timely decisions regarding required disclosure.

Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting during our fourth fiscal quarter that

have materially affected, or are reasonably likely to materially affect, our internal control over financial
reporting.

Part III

ITEM 10. Directors, Executive Officers and Corporate Governance

Executive Officers and Directors

Information responsive to this item is incorporated herein by reference to Fortinet’s definitive proxy
statement with respect to our 2010 Annual Meeting of Stockholders to be filed with the SEC within 120 days
after the end of the fiscal year covered by this annual report on Form 10-K.

As part of our system of corporate governance, our board of directors has adopted a code of business
conduct and ethics. The code applies to all of our employees, officers (including our principal executive officer,
principal financial officer, principal accounting officer or controller, or persons performing similar functions),
agents and representatives, including our independent directors and consultants, who are not employees of the

104

Company, with regard to their Fortinet-related activities. Our code of business conduct and ethics is available on
our website at www.fortinet.com under “About Us—Investor Relations—Corporate Governance.” We will post
on this section of our website any amendment to our code of business conduct and ethics, as well as any waivers
of our code of business conduct and ethics, that are required to be disclosed by the rules of the SEC or the
NASDAQ Stock Market.

ITEM 11. Executive Compensation

Information responsive to this item is incorporated herein by reference to Fortinet’s definitive proxy
statement with respect to our 2010 Annual Meeting of Stockholders to be filed with the SEC within 120 days
after the end of the fiscal year covered by this annual report on Form 10-K.

ITEM 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder

Matters

Information responsive to this item is incorporated herein by reference to Fortinet’s definitive proxy
statement with respect to our 2010 Annual Meeting of Stockholders to be filed with the SEC within 120 days
after the end of the fiscal year covered by this annual report on Form 10-K.

ITEM 13. Certain Relationships and Related Transactions, and Director Independence

Information responsive to this item is incorporated herein by reference to Fortinet’s definitive proxy
statement with respect to our 2010 Annual Meeting of Stockholders to be filed with the SEC within 120 days
after the end of the fiscal year covered by this annual report on Form 10-K.

ITEM 14. Principal Accounting Fees and Services

Information responsive to this item is incorporated herein by reference to Fortinet’s definitive proxy
statement with respect to our 2010 Annual Meeting of Stockholders to be filed with the SEC within 120 days
after the end of the fiscal year covered by this annual report on Form 10-K.

ITEM 15. Exhibits and Financial Statement Schedules

(a) The following documents are filed as part of this Form 10-K:

Part IV

1. Financial Statements: The information concerning Fortinet’s financial statements and the Report of
Independent Registered Public Accounting Firm required by this Item 15(a)(1) is incorporated by reference
herein to the section of this Form 10-K in Item 8, titled “Financial Statements and Supplementary Data.”

2. Financial Statement Schedule: The following financial statement schedule of Fortinet, Inc., for the fiscal
years ended December 31, 2009, December 28, 2008 and December 30, 2007, is filed as part of this Form 10-K
and should be read in conjunction with the Consolidated Financial Statements of Fortinet, Inc.

105

SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS

December 31,
2009

Years Ended

December 30,
2008

(in thousands)

December 28,
2007

Allowance for Doubtful Accounts:

Beginning balance . . . . . . . . . . . . . . . . . .
Charged to costs and expenses . . . . . . . .
Bad debt write-offs . . . . . . . . . . . . . . . . .

$

318
161
(112)

$

384
191
(257)

$

90
319
(25)

Ending balance . . . . . . . . . . . . . . . . . . . . .

$

367

$

318

$

384

Sales Return Reserve:

Beginning balance . . . . . . . . . . . . . . . . . .
Charged to costs and expenses . . . . . . . .
Deductions—reserves utilized . . . . . . . . .

$ 2,671
3,774
(1,431)

Ending balance . . . . . . . . . . . . . . . . . . . . .

$ 5,014

$ 3,995
893
(2,217)

$ 2,671

$ 3,174
1,919
(1,098)

$ 3,995

Schedules not listed above have been omitted because they are not applicable or are not required or the
information required to be set forth therein is included in the Consolidated Financial Statements or Notes thereto.

3. Exhibits: See Item 15(b) below. We have filed, or incorporated into this 10-K by reference, the exhibits

listed on the accompanying Index to Exhibits immediately following the signature page of this Form 10-K.

(b) Exhibits:

The exhibit list in the Index to Exhibits immediately following the signature page of this Form 10-K is

incorporated herein by reference as the list of exhibits required by this Item 15(b).

(c) Financial Statement Schedules: See Item 15(a), above.

106

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant

has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, on March 5,
2010.

FORTINET, INC.

By:

/s/ Ken Goldman

Ken Goldman, Chief Financial Officer

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below

constitutes and appoints Ken Xie and Ken Goldman, jointly and severally, his attorney-in-fact, with the power of
substitution, for him in any and all capacities, to sign any amendments to this Annual Report on Form 10-K and
to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and
Exchange Commission, hereby ratifying and confirming all that each of said attorneys-in-fact, or his substitute or
substitutes, may do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by

the following persons on behalf of the registrant and in the capacities and on the dates indicated.

Signature

Title

Date

/s/ Ken Xie
Ken Xie

/s/ Ken Goldman
Ken Goldman

/s/ Michael Xie
Michael Xie

/s/ George Hara
George Hara

/s/ Hong Liang Lu
Hong Liang Lu

/s/ Greg Myers
Greg Myers

President, Chief Executive Officer
and Director
(Principal Executive Officer)

Chief Financial Officer
(Principal Financial and
Accounting Officer)

Chief Technical Officer and
Director

Director

Director

Director

March 5, 2010

March 5, 2010

March 5, 2010

March 5, 2010

March 5, 2010

March 5, 2010

/s/ Christopher B. Paisley

Director

March 5, 2010

Christopher B. Paisley

/s/

John Walecka
John Walecka

Non-Executive Chairman of the
Board and Director

March 5, 2010

107

Exhibit
Number

Description

Incorporated by reference herein

Form

Date

EXHIBIT INDEX

3.1

3.2

4.1

4.2

10.1†

10.2†

10.3†

10.4†

10.5†

10.6†

10.7†

10.8†

10.9†

10.10†

Amended and Restated Certificate of
Incorporation

Registration Statement on Form S-l, as
amended (File No. 333-161190)

August 10, 2009

Amended and Restated Bylaws

Registration Statement on Form S-l, as
amended (File No. 333-161190)

August 10, 2009

Specimen common stock certificate of
the Company

Registration Statement on Form S-l, as
amended (File No. 333-161190)

November 2, 2009

Third Amended and Restated
Investors Rights Agreement, dated as
of February 24, 2004, between the
Company and certain holders of the
Company’s capital stock named
therein

Forms of Indemnification Agreement
between the Company and its directors
and officers

Registration Statement on Form S-l, as
amended (File No. 333-161190)

August 10, 2009

Registration Statement on Form S-l, as
amended (File No. 333-161190)

August 10, 2009

2000 Stock Plan and forms of
agreement thereunder

2008 Stock Plan and forms of
agreement thereunder

Registration Statement on Form S-l, as
amended (File No. 333-161190)

Registration Statement on Form S-l, as
amended (File No. 333-161190)

August 10, 2009

August 10, 2009

2009 Equity Incentive Plan and forms
of agreement thereunder

Registration Statement on Form S-l, as
amended (File No. 333-161190)

August 10, 2009

Separation and Change of Control
Agreement, dated as of August 7,
2009, between the Company and Ken
Xie

Separation and Change of Control
Agreement, dated as of August 7,
2009, between the Company and
Michael Xie

Separation and Change of Control
Agreement, dated as of August 7,
2009, between the Company and Ken
Goldman

Separation and Change of Control
Agreement, dated as of August 7,
2009, between the Company and John
Whittle

Offer Letter, dated as of August 31,
2007, by and between the Company
and Ken Goldman

Offer Letter, dated as of August 31,
2007, by and between the Company
and John Whittle

Registration Statement on Form S-l, as
amended (File No. 333-161190)

August 10, 2009

Registration Statement on Form S-l, as
amended (File No. 333-161190)

August 10, 2009

Registration Statement on Form S-l, as
amended (File No. 333-161190)

August 10, 2009

Registration Statement on Form S-l, as
amended (File No. 333-161190)

August 10, 2009

Registration Statement on Form S-l, as
amended (File No. 333-161190)

August 10, 2009

Registration Statement on Form S-l, as
amended (File No. 333-161190)

August 10, 2009

108

10.11†

10.12

21.1

23.1*

24.1*

31.1*

31.2*

32.1*

Form of Change of Control Agreement
between the Company and its non-
executive officers

Registration Statement on Form S-l, as
amended (File No. 333-161190)

August 10, 2009

Fortinet, Inc. Bonus Plan

Current Report on Form 8-K

January 26, 2010

List of subsidiaries

Registration Statement on Form S-l, as
amended (File No. 001-34511)

August 10, 2009

Consent of Independent Registered
Public Accounting Firm

Power of Attorney (incorporated by
reference to the signature page of this
Annual Report on Form 10-K)

Certification of Chief Executive
Officer pursuant to Exchange Act
Rules 13a-14(a) and 15d-14(a), as
adopted pursuant to Section 302 of the
Sarbanes-Oxley Act of 2002

Certification of Chief Financial Officer
pursuant to Exchange Act Rules 13a-
14(a) and 15d-14(a), as adopted
pursuant to Section 302 of the
Sarbanes-Oxley Act of 2002

Certifications of Chief Executive
Officer and Chief Financial Officer
pursuant to 18 U.S.C. Section 1350, as
adopted pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002

†

*

Indicates management compensatory plan, contract or arrangement.
Filed herewith.

109

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Exhibit 31.1

CERTIFICATION

I, Ken Xie, certify that:

1.

I have reviewed this Annual Report on Form 10-K of Fortinet, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to
state a material fact necessary to make the statements made, in light of the circumstances under which
such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this
report, fairly present in all material respects the financial condition, results of operations and cash
flows of the registrant as of, and for, the periods presented in this report;

4.

The registrant’s other certifying officers and I are responsible for establishing and maintaining
disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and
internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for
the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and

procedures to be designed under our supervision to ensure that material information relating to the
registrant, including its consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this annual report is being prepared;

(b) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in
this report our conclusions about the effectiveness of the disclosure controls and procedures, as of
the end of the period covered by this report based on such evaluation; and

(c) Disclosed in this report any change in the registrant’s internal control over financial reporting that
occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in
the case of an annual report) that has materially affected, or is reasonably likely to materially
affect, the registrant’s internal control over financial reporting; and

5.

The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of
internal control over financial reporting, to the registrant’s auditors and the audit committee of the
registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control
over financial reporting which are reasonably likely to adversely affect the registrant’s ability to
record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a

significant role in the registrant’s internal control over financial reporting.

Date: March 5, 2010

/s/ Ken Xie

Ken Xie
President, Chief Executive Officer and Director
(Principal Executive Officer)

CERTIFICATION

I, Ken Goldman, certify that:

1.

I have reviewed this Annual Report on Form 10-K of Fortinet, Inc.;

Exhibit 31. 2

2. Based on my knowledge, this annual report does not contain any untrue statement of a material fact or
omit to state a material fact necessary to make the statements made, in light of the circumstances under
which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this
report, fairly present in all material respects the financial condition, results of operations and cash
flows of the registrant as of, and for, the periods presented in this report;

4.

The registrant’s other certifying officers and I are responsible for establishing and maintaining
disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and
internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for
the registrant and have:

(a) Designed such disclosure controls and procedures or caused such disclosure controls and

procedures to be designed under our supervision, to ensure that material information relating to
the registrant, including its consolidated subsidiaries, is made known to us by others within those
entities, particularly during the period in which this annual report is being prepared;

(b) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in
this report our conclusions about the effectiveness of the disclosure controls and procedures, as of
the end of the period covered by this report based on such evaluation; and

(c) Disclosed in this report any change in the registrant’s internal control over financial reporting that
occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in
the case of an annual report) that has materially affected, or is reasonably likely to materially
affect, the registrant’s internal control over financial reporting; and

5.

The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of
internal control over financial reporting, to the registrant’s auditors and the audit committee of the
registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control
over financial reporting which are reasonably likely to adversely affect the registrant’s ability to
record, process, summarize and report financial information; and

(c) Any fraud, whether or not material, that involves management or other employees who have a

significant role in the registrant’s internal control over financial reporting.

Date: March 5, 2010

/s/ Ken Goldman

Ken Goldman
Chief Financial Officer
(Principal Financial Officer)

CERTIFICATIONS OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER

Exhibit 32.1

PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Ken Xie, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-
Oxley Act of 2002, that the Annual Report on Form 10-K of Fortinet, Inc. for the fiscal year ended December 31,
2009 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and
that information contained in this Annual Report on Form 10-K fairly presents in all material respects the
financial condition and results of operations of Fortinet, Inc.

Date: March 5, 2010

/s/ Ken Xie

By:
Name: Ken Xie
Title: President, Chief Executive Officer and Director

(Principal Executive Officer)

I, Ken Goldman, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002, that the Annual Report on Form 10-K of Fortinet, Inc. for the fiscal year ended
December 31, 2009 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange
Act of 1934 and that information contained in this Annual Report on Form 10-K fairly presents in all material
respects the financial condition and results of operations of Fortinet, Inc.

Date: March 5, 2010

/s/ Ken Goldman

By:
Name: Ken Goldman
Title: Chief Financial Officer

(Principal Financial Officer)

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