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Zix

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FY2013 Annual Report · Zix
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2013 Annual Report 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Statements  in  this  document  that  are  not  purely  historical  facts  or  that  necessarily 
depend  upon  future  events,  including  statements  about  forecasts  of  sales,  revenue  or 
earnings,  or  other  statements  about  anticipations,  beliefs,  expectations,  hopes, 
intentions  or  strategies  for  the  future,  may  be  forward-looking  statements  within  the 
meaning of Section 21E of the Securities Exchange Act of 1934, as amended. Readers 
are  cautioned  not  to  place  undue  reliance  on  forward-looking  statements.  All  forward-
looking  statements  are  based  upon  information  available  to  ZixCorp  on  the  date  this 
document was printed. ZixCorp undertakes no obligation to publicly update or revise any 
forward-looking  statements,  whether  as  a  result  of  new  information,  future  events  or 
otherwise.  Any  forward-looking  statements  involve  risks  and  uncertainties  that  could 
cause actual events or results to differ materially from the events or results described in 
the  forward-looking  statements,  including  risks  or  uncertainties  related  to  market 
acceptance of new ZixCorp solutions and how privacy and data security laws may affect 
demand  for  ZixCorp  email  data  protection  solutions.  ZixCorp  may  not  succeed  in 
addressing these and other risks. Further information regarding factors that could affect 
ZixCorp  financial  and  other  results  can  be  found  in  the  risk  factors  section  of  the 
accompanying annual report on Form 10-K. 

April 30, 2014 

To Our Shareholders, 

ZixCorp delivered another solid year for our investors in 2013. 

Our decade of leadership in email encryption, our strong financial performance and our spirit of 
technology innovation gave us the confidence, opportunity and ideas to launch two new products 
in 2013. Our new offerings in Bring-Your-Own-Device (BYOD) and Data Loss Prevention (DLP) 
broaden our email data protection portfolio and provide us with exciting new revenue growth 
opportunities. 

As we delivered those new products, we continued to enhance our email encryption offerings and 
grow that core business. We reached new records in revenue and backlog in 2013, which was 
our fifth consecutive year of positive earnings. Our Software-as-a-Service (SaaS) subscription 
model drove 11 percent revenue growth and a 14 percent increase in our subscription backlog. 
We won $9.0 million in new first year orders (NFYO) despite what we currently believe to be a 
temporary slow-down of new sales from our largest OEM partner, Google. Our revenue growth 
and largely fixed-cost structure enabled ZixCorp to end 2013 with a cash balance of $27.5 million, 
even after returning $8.8 million to our shareholders through share repurchases. 

BYOD, or the use of personal mobile devices for work, has challenged IT to find a solution that 
enables work productivity without compromising either corporate data protection or employee 
demands for control and privacy. Before our ZixOne solution came to market, companies were 
forced to choose between data protection and employee demands, and many ultimately found the 
available solutions did not provide adequate data security. Adding to the dilemma were corporate 
liability concerns resulting from solutions that gave employers excessive levels of control over 
employees’ personal devices. 

With the ZixOne launch in September 2013, companies no longer had to choose between those 
competing needs. ZixOne provides a BYOD solution with unrivaled data security which does not 
compromise employee privacy or create employment concerns. ZixOne allows employees secure 
access to corporate email without ever allowing that data to reside on the device. Employees can 
interact with confidential email without downloading it. If a smartphone or tablet is lost or stolen, 
the employer can simply disable email access from that device, and the corporate information 
remains protected. It’s a simple BYOD approach that solves the corporate data security problem 
without jeopardizing employee control or privacy of their personally owned devices. 

We also successfully launched our DLP solution last year. ZixDLP leverages our expertise to 
deliver an email data protection solution that reduces the typical DLP implementation timeline 
from months to mere hours and with minimal impact on end users. Combining our proven policy 
and content scanning capabilities with an intuitive quarantine interface, ZixDLP is easy to 
implement, use and administer. By focusing on email – the most used communication tool and 
greatest source of business information leakage – businesses can cost effectively address the 
loss of customer information, intellectual property and other sensitive data. 

Our email encryption business continues to deliver the innovation and service our loyal customers 
deserve and expect, while our new products allow us to leverage our reputation as a leader and 
innovator in email data security with both new and existing customers. 

Our investments and expansion of customer reach have also added confidence and growth 
opportunities for our valuable partner channel. We increased by 57 percent the number of 
partnerships with value added resellers (VARs) and managed security service providers 
(MSSPs). More than 320 VARs and MSSPs combined to contribute 48 percent of our NFYOs in 

 
 
2013. Our OEM partnership with Symantec increased NFYO contributions 40%. Although the 
temporary slow-down of Google sales impacted the total flow of new sales from our OEM 
business, we continue to see progress as Google works toward announcing a new version of 
Google Message Encryption, now called Google Apps Message Encryption (GAME), which is 
more tightly integrated with Google Apps. 

With energized partner and sales channels, new solutions to increase our revenue potential and 
our leading presence in email encryption, ZixCorp is positioned for a strong 2014 and long-term 
success. 

We are extremely pleased to have increased our ZixDirectory email encryption community to 
more than 40 million members. We appreciate our customers’ continued loyalty and their 
interests in exploring our latest innovations in email data protection. We are thankful for the 
continued integrity, dedication and professionalism that our employees bring to the office every 
day. And, on behalf of our entire company, let me express our appreciation for our shareholders 
for their enthusiasm as we expand our reach into new markets and for their ongoing support of 
the company. 

Sincerely, 

Richard D. Spurr 
Chairman of the Board and Chief Executive Officer 

 
 
United States  
SECURITIES AND EXCHANGE COMMISSION  
Washington, D.C. 20549  
Form 10-K  

(Mark One)  
(cid:95)  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE 

ACT OF 1934  

For the fiscal year ended December 31, 2013  

(cid:133)  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES 

EXCHANGE ACT OF 1934  

For the transition period from                      to                       
Commission File Number: 0-17995  

Zix Corporation  

(Exact Name of Registrant as Specified in its Charter)  

Texas
(State or Other Jurisdiction of 
Incorporation or Organization) 

75-2216818 
(I.R.S. Employer 
Identification Number) 

2711 N. Haskell Avenue, Suite 2200, LB 36, Dallas, Texas 75204-2960  
(Address of Principal Executive Offices)  
(214) 370-2000  
(Registrant’s Telephone Number, Including Area Code)  
Securities Registered Pursuant to Section 12(b) of the Act:  

Title of each class of stock 
Common Stock $0.01 Par Value 

Name of each exchange on which registered 
NASDAQ 

Securities Registered Pursuant to Section 12(b) of the Act: None  

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

Act.    Yes  (cid:133)    No  (cid:95)  

Indicate by check mark whether the Registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. 

    Yes  (cid:133)    No   (cid:95)  

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  (cid:95)    No  (cid:133)  

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 (§232.405 of this chapter) during the preceding 12 months (or for 
such shorter period that the registrant was required to submit and post such reports)    Yes  (cid:95)    No  (cid:133)  

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405 of this chapter) is not contained 
herein, and will not be contained, to the best of 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.  (cid:133)  

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 definitions of “large accelerated filer”, “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check 
one):  
Large accelerated filer  (cid:133) 
Non-accelerated filer  (cid:133) (Do not check if a smaller reporting company) 

Accelerated filer 
(cid:95)
Smaller reporting company  (cid:133)
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  (cid:133)    No   (cid:95)  
As of March 7, 2014, there were 59,606,164 shares of Zix Corporation $0.01 par value common stock outstanding. As of June 30, 2013, the 

aggregate market value of the shares of Zix Corporation common stock held by non-affiliates was $257,542,205.  

Portions of the Registrant’s 2014 Proxy Statement are incorporated by reference into Part III of this Form 10-K.  

DOCUMENTS INCORPORATED BY REFERENCE  

  
  
  
  
  
  
 
  
  
 
  
 
  
  
  
  
 
 
 
 
 
 
 
  
  
  
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TABLE OF CONTENTS  

PART I 
  Business 

Item 1. 
Item 1A.   Risk Factors 
Item 1B.   Unresolved Staff Comments 
Item 2. 
Item 3. 
Item 4. 

  Properties 
  Legal Proceedings 
  Mine Safety Disclosures 

PART II 

  Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities 
  Selected Financial Data 
  Management’s Discussion and Analysis of Financial Condition and Results of Operations 

Item 5. 
Item 6. 
Item 7. 
Item 7A.   Quantitative and Qualitative Disclosures About Market Risk 
Item 8. 
Item 9. 
Item 9A.   Controls and Procedures 
Item 9B.   Other Information 
PART III 

  Financial Statements and Supplementary Data 
  Changes in and Disagreements with Accountants on Accounting and Financial Disclosure 

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 Accountant Fees and Services 

PART IV 

Item 15.   Exhibits and Financial Statement Schedules 

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Item 1. Business  

PART I  

Zix Corporation (“ZixCorp®,” the “Company,” “we,” “our,” or “us”) offers email encryption data loss prevention and Bring-

Your-Own-Device (“BYOD”) security to meet business data protection and compliance needs. We primarily serve organizations in 
the healthcare, financial services, insurance and government sectors, including significant federal financial regulators—such as the 
Federal Financial Institutions Examination Council (“FFIEC”), divisions of the U.S. Treasury, the U.S. Securities and Exchange 
Commission (SEC), the Financial Industry Regulatory Agency (“FINRA”)—one in every five U.S. banks, more than 30 Blue Cross 
Blue Shield organizations and one in every five U.S. hospitals.  

Zix TM Email Encryption enables the secure exchange of email that include sensitive information through a comprehensive secure 
messaging service, which allows an enterprise to use policy-driven rules to determine which email messages should be sent securely to 
comply with regulations or company-defined policies. It is a Software-as-a-Service (“SaaS”) solution, for which customers pay an 
annual service subscription fee.  

The main differentiator for Zix Email Encryption in the marketplace is our exceptional ease of use. The best example of this is 

our ability to provide transparent delivery of secure, encrypted email. Most email encryption solutions are focused on the sender. They 
typically introduce an added burden on receivers, often requiring additional user authentication with creation of a new user identity 
and password. We designed our solution to alleviate the receiver’s burden by enabling the delivery of encrypted email automatically 
and transparently. ZixCorp enables transparent delivery by (1) ZixDirectory®, the world’s largest email encryption community which 
is designed to share identities of our tens of millions of members (growing by approximately 100,000 members per week), 
(2) ZixCorp’s Best Method of Delivery®, which is designed to deliver email according to the sender’s encryption policy, and 
(3) ZixGateway®, which is an enterprise gateway that automatically decrypts the message. The result is the industry’s only transparent 
encrypted email, such that secure email can be exchanged without extra steps or passwords for both senders and receivers.  

On March 29, 2013, ZixCorp launched ZixDLPTM, an email-specific data loss prevention (“DLP”) solution. By focusing strictly 

on email, ZixDLP addresses business’s greatest source of data loss – corporate email. The straightforward DLP approach decreases 
the complexity and cost often associated with other DLP solutions. ZixDLP is also designed to reduce deployment time from months 
to hours and minimize impact on customer resources and workflow. In addition, ZixDLP offers a convenient experience for both 
employees interacting with the solution and administrators managing the system.  

Leveraging the company’s leadership and expertise in email encryption, ZixDLP uses ZixCorp’s proven policy and content 
scanning capabilities with new quarantine functionality. The quarantine system and its intuitive interface allow administrators to 
(1) easily define policies and create custom lexicons for quarantining email messages, (2) conveniently manage quarantined messages 
using flexible searching and filtering options, (3) release or delete individual or multiple quarantined messages with one click, 
(4) review reports that monitor quarantine activities and trends and (5) automate custom notifications informing employees of 
quarantined messages.  

ZixDLP is available as an add-on for existing ZixCorp customers or as a bundle with ZixCorp Email Encryption for new 
customers. ZixDLP is also available as a standalone solution that can easily integrate with most email systems and email encryption 
solutions.  

On September 3, 2013, ZixCorp launched ZixOneTM, a unique mobile email app that solves the key IT challenge created by the 

BYOD trend in the workplace. BYOD describes the increasing trend of employees using their personal devices to conduct work. 
ZixOne provides access to corporate email while never allowing that data to be persistently stored on the device where it is vulnerable 
to loss or theft. If the device is lost or stolen, an administrator can simply disable access to corporate email from that device 
through ZixOne.  

Unlike other BYOD solutions, ZixOne meets employee demands of convenience, control and privacy while giving companies 

the ability to secure corporate data and meet compliance needs. With seamless access to work email in a secure, simple-to-use 
environment, employees can stay productive while preserving device independence. A BYOD solution that is acceptable to employees 
and yet provides strong data protection for corporate data solves one of today’s greatest IT management challenges.  

Our business operations and service offerings are supported by the ZixData Center, a SysTrust/SOC3 certified, SOC2 
accredited, PCI, DSS V2.0 certified facility. The operations of the ZixData Center are independently audited annually to maintain 
AICPA SysTrust/SOC3 certification in the areas of security, confidentiality, integrity and availability. Auditors also produce a SOC2 

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(formerly SAS70 Type II) report on the effectiveness of operational controls used over the audit period. The ZixData Center is staffed 
24 hours a day with a track record that exceeds 99.99% availability.  

Our company was incorporated in Texas in 1988. Originally named Amtech Corporation, we changed our name to ZixIt® 

Corporation in 1999 when we entered the encrypted email market. In 2002, we became Zix Corporation. Our executive offices are 
located at 2711 North Haskell Avenue, Suite 2200, LB 36, Dallas, Texas 75204-2960, (214) 370-2000.  

Overview  

Email is a mission-critical means of communication for enterprises. However, if email leaves a secure network environment in 

clear text, it can be intercepted along the path between a sender and a recipient, which permits theft, redirection, manipulation or 
exposure to unauthorized parties. Failure to control and manage such risks can result in enforcement penalties for noncompliance 
under numerous different regulations, in addition to damaged reputation, competitive disadvantage, a loss of intellectual property or 
other corporate assets, exposure to negligence or liability claims, and diversion of resources to repair such damage. For example, 
healthcare organizations, business associates and sub-contractors are subject to the Final Privacy, Security, and Enforcement Rules of 
Health Information Portability Accountability Act (“HIPAA”) as amended by the Health Information Technology for Economic and 
Clinical Health Act (the “HITECH Act”). Financial institutions are subject to data privacy laws included in the Gramm-Leach-Bliley 
Act (“GLBA”). In addition, individual states such as Massachusetts and Nevada have enacted state laws requiring encryption of 
certain email messages and information.  

Corporations require easy to use, cost-effective email protection that can be used on an enterprise-wide basis. They need it to be 

quickly deployed and regularly updated to evolve with innovative technology practices and meet changing regulatory standards. To 
satisfy these needs, our Email Encryption Service provides a comprehensive solution that analyzes and encrypts email 
communications.  

Our Email Encryption Service allows a user to send encrypted email to any email user, anywhere and on any internet enabled 

device. Encrypted email is delivered through the ZixCorp Best Method of Delivery protocol which automatically determines the most 
direct and appropriate means of delivery, based on the sender’s and recipient’s communications environment and preferences. The 
protocol supports a number of encrypted email delivery mechanisms, including S/MIME, TLS, OpenPGP, “push” delivery and secure 
portal “pull” delivery. These last two mechanisms enable users to send messages securely to anyone with an email address, including 
those who do not have an encryption tool. Our Best Method of Delivery makes the technology simple for end users and provides 
flexibility and ease of implementation for information technology professionals. We believe the ability to send messages through 
different modes of delivery is one of many differentiators making our Email Encryption Service superior to competitive offerings.  

The deployment of our Email Encryption Service at the periphery of the customer’s network means our Email Encryption 

Service encrypts outbound email for an enterprise without the need to create, deploy or manage end user encryption keys or deploy 
desktop software. Our technology solutions are easy to use, easy to deploy, and can be made operational quickly.  

Our service has an integrated policy management capability. This policy engine can inspect the contents of emails and apply 

policies matching specific industry criteria such as HIPAA, the HITECH Act and GLBA. Customers can also build their own custom 
policies. This policy driven email encryption for regulatory compliance means customers can reduce the training required of their staff 
and significantly reduce the risk of inadvertently sending sensitive content by regulating the method of delivery through preset 
policies.  

Competition  

The most significant differentiator for ZixCorp’s Email Encryption Service as compared with our competition is ease of use. 
The best example of our unequalled ease of use is transparent delivery of encrypted email messages. We are able to deliver transparent 
email encryption as a result of our SaaS architecture, ZixDirectory, Best Method of Delivery and ZixGateway. The most critical and 
highly differentiated component of our solution is the ZixDirectory which provides the ability to share user identities for encryption, 
which in turn provides interoperability between users in a community of interest such as healthcare, finance or government.  

In addition, our service differs from the products and services of most of our competitors because we offer a SaaS architecture, 

while most of our competitors offer primarily a product-based approach that the customer builds and runs themselves. Some of our 
competitors have substantial information technology security and email protection products, however, our competitors’ customers tend 
to build and operate their own systems, and the directory of user identities each competitor creates is not shared. This practice is less 
desirable as different companies’ encrypted email systems are not easily made interoperable.  

Our capability to offer interoperability is particularly important when it is necessary to communicate with external networks, as 
is the case with the healthcare and financial services markets. Our customers become part of the ZixDirectory, a global “white pages” 

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enabling transparent secure communications with other ZixGateway customers using our centralized key management system and 
overall unique approach to implementing secure e-mail. We enable secure communications with other users via TLS, Open PGP, 
“push” delivery and secure portal “pull” delivery mechanisms. However, we believe our unique transparent delivery is the more 
preferred delivery model.  

Zix Email Encryption and Zix DLP focus on the secure (i.e, encrypted) delivery and data loss prevention sub-segments of the e-

mail security market. We view our primary competitors as Cisco Systems Inc., Proofpoint Inc., Microsoft, Barracuda Networks, 
Sophos Inc, and McAfee, Inc. Technically, while these companies offer “send-to-anyone” encrypted email, we believe they are unable 
to offer the benefits that come from access to the ZixDirectory, use of our Best Method of Delivery protocol, and the industry’s only 
transparent email encryption. Nevertheless, some of these competitors are large enterprises with substantial financial and technical 
resources that exceed those we possess.  

As discussed above, with the introduction of ZixOne the Company entered the BYOD mobile device security market. In the 
BYOD market, we view our primary competitors as companies that provide mobile device management (“MDM”) or containerization 
approaches (also called data wrapping) that are premised on storing business data on an employee’s personally-owned device. In order 
to secure business data on personal devices, MDM and containerization approaches require individual users to permit their employer 
access to and control over personally-owned smartphones and tablet computers. Those approaches therefore can create user concerns 
about loss of control and privacy of their devices. In contrast, ZixOne enables Android® or IOS® mobile devices to view remotely-
stored corporate email, calendar and contacts, and to interact with that data. ZixOne more effectively protects that business data by 
never allowing it to be stored on the device, where it might be subjected to exposure from theft or loss of the device. Moreover, 
ZixOne does not require employees to relinquish device control or personal privacy to their employer. We believe these differentiators 
to make ZixOne an attractive BYOD solution. Nevertheless, Zix is new to BYOD and enterprise mobility management (“EMM”) 
space, whereas competitors have an established brand in the market with substantial financial and technical resources that exceed 
those we possess. We view our primary competitors as AirWatch/VMware, Citrix (with XenMobile), Good Technology, 
IBM/Fiberlinke (with MaaS360), Microsoft (with Activesync), and MobileIron.  

Regulatory Drivers  

We have been successful in securing additional market penetration for Zix Email Encryption in our target vertical markets of 
healthcare, finance services and government. There was a significant increase in demand in the healthcare sector leading up to the 
April 2005 HIPAA Security Rule deadline and sales in this sector have remained generally strong since that time. The HITECH Act 
expanded the scope of HIPAA. Key elements of the HITECH ACT relating to HIPAA include increased penalties for violations, 
stricter and more onerous breach notification requirements, an expanded reach of the law to include previously uncovered business 
associates (“BAs”), and the ability for states to pursue HIPAA violations in addition to the U.S Department of Health and Human 
Services (“HHS”). Pursuant to the HITECH Act, the Office for Civil Rights conducted 115 audits of covered entities during 2012 to 
assess privacy and security compliance. In January 2013, HHS released the Final “Omnibus” Privacy, Security, and Enforcement 
Rules of HIPAA and the HITECH Act. These Final Rules expanded liability for BAs, extended regulatory compliance to BA sub-
contractors and removed the previous “Harm Threshold” for breach notifications. The Final Rules took effect March 26, 2013, and 
compliance was required by September 23, 2013. The Company believes these changes will increase demand for email encryption by 
broadening the potential market and providing further incentive for potential customers to adopt email encryption technology.  

Additional federal regulations promulgated under GLBA, HIPAA and the HITECH Act and state laws and regulations across 
the country, along with highly publicized breaches, have enhanced security awareness in vertical markets outside of healthcare and 
have prompted affected organizations to consider adopting systems that ensure data security and privacy.  

Even where there are no specific regulations, corporations may require email protection to adhere to evolving industry best 
practices for protecting sensitive information. We target the relevant regulators who themselves have placed an increased emphasis on 
the secure transmission of sensitive information, data loss prevention, and BYOD security. Our customers include all of the federal 
regulators who comprise the FFIEC as well as the state banking regulators in more than twenty states. Our service is also a 
recommended solution of the Conference of State Bank Supervisors, whose members regulate the more than 6,000 state-chartered 
banks in the U.S.  

Sales and Marketing  

We sell our Email Encryption and DLP and ZixOne Services through a direct sales force that focuses on larger businesses and a 

telesales force that focuses on small to medium-sized accounts. We also use a network of resellers and other distribution partners, 
including other service providers seeking an encryption offering in an original equipment manufacturing (“OEM”)-like relationship. 
New first year orders (“NFYOs”, defined as the twelve month value of orders received from new customers), derived from our value-

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added resellers, OEM and third party distribution channels for 2013 were 59% of the total new first year orders compared to 63% in 
2012. Google, Inc. continues to be our largest third party reseller representing approximately 6% of new first year orders in 2013. We 
now have more than 200 value-added resellers and an additional 100 managed security service providers across the U.S.  

Employees  

We had 162 employees as of December 31, 2013. The majority of our employees are located in Dallas, Texas; we also have a 

large sales office in Burlington, Massachusetts; and a smaller office located in Ottawa, Ontario, Canada.  

Research and Development — Patents and Trademarks  

We incurred research and development expenses of $9.6 million, $7.4 million, and $5.2 million for the twelve-month periods 

ended December 31, 2013, 2012, and 2011, respectively.  

Over the course of 2013 we continued to make investments toward both delivery of new services and to strengthen and expand 
our core Email Encryption portfolio. ZixOne, our new BYOD offering, and the new ZixDLP service were both successfully launched 
and investment in added features development continued in response to customer feedback. In the Email Encryption area, we 
strengthened our distributed ZixDirectory data management and distribution architecture in order to enable scalable delivery of 
differentiating system functionality such as universal opportunistic encryption between ZixGateway customers. We also invested in 
stronger encryption standards and market-driven features for our ZixPort service and added support for 64-bit computing platforms 
with upgrades of our desktop client portfolio. In addition, new management and reporting capabilities were added to support our major 
OEM channels and Managed Service Providers.  

The following are registered trademarks of ours and certain of our subsidiaries: “ZixCorp,” “ZixGateway,” “ZixDirectory,” 

ZixIt, “ZixPort,” and PocketScript.  

Compliance with Environmental Regulations  

We have not incurred, and do not expect to incur, any material expenditures or obligations related to environmental compliance 

issues.  

Governmental Contracts  

We have contracts with many local, state and federal agencies and regulators, which in aggregate contribute approximately six 

percent of our annual revenue.  

Significant Customers  

In each of 2013, 2012, and 2011, no single customer accounted for 10% or more of our total revenues. Our accounts receivable 
balance at December 31, 2012, included receivables from one customer comprising 12% of the net total. These receivables were paid 
to the Company in the first quarter 2013.  

Backlog  

Our backlog is comprised of contractual commitments that we expect to recognize as revenue in the future. Our backlog was 

$65.7 million at December 31, 2013, compared to $57.7 million at December 31, 2012.  

As of December 31, 2013, our backlog is comprised of the following elements: $20.3 million of deferred revenue that has been 

billed and paid, $6.0 million billed but unpaid, and approximately $39.4 million of unbilled contracts.  

The backlog is recognized into revenue ratably as the services are performed. Approximately 54% of our total backlog at 

December 31, 2013, is expected to be recognized as revenue during 2014.  

Seasonality  

Our business is not materially impacted by seasonality.  

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Geographic Information  

Our operations are primarily based in the U.S., with approximately 6% of our employees located in Canada. Except for a United 

Kingdom based data center, we do not operate in, or have dependencies on, any other foreign countries. Our revenues and orders to-
date are almost entirely sourced in the U.S. and all significant corporate assets at December 31, 2013, were located in the U.S.  

Available Information  

Our Internet address is www.zixcorp.com. Our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports 
on Form 8-K, and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 
1934, as amended (the “Exchange Act”), are available on our website, without charge, as soon as reasonably practicable after we 
electronically file such material with, or furnish it to, the SEC. The information found on our website shall not be considered to be part 
of this or any other report filed with or furnished to the SEC.  

In addition to our website, you may read and copy any materials we file with the SEC at the SEC’s Public Reference Room at 
450 Fifth Street, N.W., Washington, D.C. 20549. You may obtain information on the operation of the SEC’s Public Reference Room 
by calling the SEC at 1-800-SEC-0330. The SEC maintains a website that contains reports, proxy and other information statements, 
and other information regarding issuers, including us, that file electronically with the SEC. The address of the website is www.sec.gov.  

NOTE ON FORWARD-LOOKING STATEMENTS AND RISK FACTORS  

This document contains “forward-looking statements” (including the discussion appearing under the caption “Liquidity 

Summary” in “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations,” within the 
meaning of Section 27A of the Securities Act of 1933, as amended (the “Act”) and Section 21E of the Exchange Act. All statements 
other than statements of historical fact are “forward-looking statements” for purposes of federal and state securities laws, including: 
any projections of future business, market share, earnings, revenues, recognition of revenues from backlog, cash receipts, or other 
financial items; any statements of the plans, strategies, and objectives of management for future operations; any statements concerning 
proposed new products, services, or developments; any statements regarding future economic conditions or performance; any 
statements of belief; and any statements of assumptions underlying any of the foregoing. Forward-looking statements may include the 
words “may,” “will,” “predict,” “project,” “forecast,” “plan,” “should,” “could,” “goal,” “estimate,” “intend,” “continue,” “believe,” 
“expect,” “outlook,” “anticipate,” “hope,” and other similar expressions. Any forward-looking statements involve risks and 
uncertainties that could cause actual events or results to differ materially from the events or results described in the forward-looking 
statements, including, but not limited to, the risks and uncertainties described in the “Item 1A Risk Factors” section.  

Although we believe that expectations reflected in any of our forward-looking statements are reasonable, actual results could 

differ materially from those projected or assumed in any of our forward-looking statements. Our future financial condition and results 
of operations, as well as any forward-looking statements, are subject to change and to inherent risks and uncertainties, such as those 
disclosed in this document. We do not intend, and undertake no obligation, to update any forward-looking statement.  

Item 1A. Risk Factors  

The following is a cautionary discussion of risks, uncertainties and assumptions that we believe are significant to our business, 

financial condition and financial results. In addition to the factors discussed elsewhere in this Annual Report on Form 10-K, the 
following are some of the important factors that, individually or in the aggregate, we believe could make our results differ materially 
from those described in any forward-looking statements. It is impossible to predict or identify all such factors and, as a result, you 
should not consider the following factors to be a complete discussion of risks, uncertainties and assumptions.  

Our business depends upon customers using email to exchange confidential information, and a significant shift of those 
messages to other communication channels could impair our growth prospects and negatively affect our business, financial 
condition and financial results.  

Our customers deploy and use our products and services to easily, securely and confidentially send and receive email messages. 

Our business and revenue substantially depend on our current and potential customers using email to exchange sensitive information 
electronically. New technologies, products, or business models that could support secure communications could be disruptive to our 
business. If prospective or current customers were to send and receive sensitive information using technology or communication 
channels other than email, our growth prospects and our business, financial condition and financial results could be materially 
adversely affected.  

7 

 
 
Public key cryptography technology used in our businesses is subject to technology integrity risks that could reduce demand 
for our products and services and could negatively affect our business, financial condition and financial results.  

Our business employs public key cryptography technology and other encryption technologies to encrypt and decrypt messages. 
The security afforded by encryption depends on the integrity of the private key, which is predicated on the assumption that it is very 
difficult to mathematically derive the private key from the related public key. Successful decryption of encrypted information, or 
public reports of successful decryption, whether or not true, could reduce demand for our products and services. If new methods or 
technologies, such as quantum computing, make it easier to derive the private key from the related public key, the security of 
encryption services using public key cryptography technology could be impaired and our products and services could become 
unmarketable. That could require us to make significant changes to our services, which could increase our costs, damage our 
reputation, or otherwise harm our business. Any of these events could reduce our revenues, increase our expenses and materially 
adversely affect our business, financial condition and financial results.  

The growth of our business may require significant investment in systems and infrastructure and these investments may 
achieve delayed, or lower than expected benefits, which could impair our profitability and negatively affect our business, 
financial condition and financial results.  

As our operations grow in size and scope, we continually need to improve and upgrade our technology offerings, systems and 
infrastructure to offer an increasing number of customers enhanced products, services, features and functionality, while maintaining 
the reliability and integrity of our systems and infrastructure and pursuing reduced costs per transaction. Expanding our technology 
offerings, systems and infrastructure may require us to commit substantial financial, operational and technical resources, with no 
assurance that the volume of our business will increase, which could reduce our net income, deplete our cash, and materially adversely 
affect our business, financial condition and financial results.  

We face strong competition, which could negatively affect our business, financial condition and financial results.  

The markets in which we compete are characterized by rapid change and converging technologies and are very competitive. 

With rising demand for private and secure email communications, there is strong competition for email encryption products and 
services. Our Email Encryption and data loss prevention business competes with products and services offered by companies such as 
Microsoft, Barracuda Networks, Inc., Cisco Systems Inc., McAfee, Inc., Proofpoint, and Sophos Inc. Our ZixOne business completes 
with products and services offered by companies such as AirWatch/VMWare, Citrix (with XenMobile), Good Technology, 
IBM/Fiberlink (with MaaS360), MicroSoft (with Activesync), and MobileIron. Strong competition requires us to develop new 
technology solutions and service offerings to expand the functionality and value that we offer to our customers. Some of our 
competitors bundle their competing products and services with products and services that we do not offer, which could make our 
offering less attractive by comparison. As a result of the bundling by these competitors, it can be difficult for our customers to 
compare the cost of our offerings with competing offerings. In some instances, competing products and services may seem to be 
offered by our competitors at little to no additional cost to the customer. In addition, our competitors may develop products and 
services that are perceived by customers as equivalent to, or having advantages over, our products and services. Competitors could 
capture a significant share in our markets, causing our sales and revenue to decline or grow more slowly. Barriers to entry are 
relatively low, and new ventures are often formed that create products competitive with our products. Competitive pressures could 
lead to price discounting or to increases in expenses such as advertising and marketing costs. Increased competition could also 
decrease demand for our products and services. Competition could reduce our revenues and net income and materially adversely affect 
our business, financial condition and financial results.  

Industry consolidation may lead to increased competition and may harm our operating results.  

There has been a trend toward industry consolidation in our industry for several years. We expect this trend to continue as 
companies attempt to strengthen or hold their market positions in an evolving industry and as companies are acquired or are unable to 
continue operations. For example, some of our current and potential competitors have made acquisitions, or announced new strategic 
alliances. Companies that are strategic alliance partners in some areas of our business may acquire or form alliances with our 
competitors, thereby reducing their business with us. We believe that industry consolidation may result in stronger competitors that are 
better able to compete as sole-source vendors for customers. This could have a material adverse effect on our business, financial 
condition and financial results.  

Some competitors have advantages that may allow them to compete more effectively than us, which could negatively affect our 
business, financial condition and financial results.  

Some of our competitors have longer operating histories, more extensive operations, greater name recognition, larger technical 

staffs, bigger product development and acquisition budgets, established relationships with more distributors and hardware vendors, 

8 

 
 
  
and greater financial and marketing resources than we do. These advantages might enable them (independently or through alliances) to 
develop and expand functionality of products and services faster than we can, to spend more money to market and distribute products 
and services than we can, or to offer their products and services at prices lower than ours. These advantages could reduce our revenues 
and net income and materially adversely affect our business, financial condition and financial results.  

We increasingly rely on third party distributors to help us market our products and services, and our failure to succeed in 
those relationships could negatively affect our business, financial condition and financial results.  

We distribute and increasing percentage of our products and services by entering into alliances with third parties who can offer 
our products and services along with their own or our competitors’ products and services. Increased reliance on third parties to market 
and distribute our products and services exposes us to a variety of risks. For example, we have limited control over the sales cycles of 
third party distributors, which could increase the length of our sales cycle, cause our revenue to fluctuate unpredictably and make it 
difficult to accurately forecast our revenue. In addition, we may not succeed in developing or maintaining marketing alliances. 
Companies with which we have marketing alliances may in the future discontinue their relationships with us, form marketing alliances 
with our competitors, or develop and market their own products and services that compete with ours. If a significant distributor were 
to discontinue its relationship with us, we could experience an interruption in the distribution of our products and services and our 
revenues could decline. Our failure to develop, maintain and expand strategic distribution relationships could reduce our revenues and 
net income and materially adversely affect our business, financial condition and financial results.  

Our business depends on market acceptance of our products and services, and our failure to achieve and maintain influential 
customers could negatively affect our business, financial condition and financial results.  

In order to continue to operate profitably and grow, we must achieve and maintain broad market acceptance of our products and 
services at a price that provides us with an acceptable rate of return relative to our costs. We have been successful in selling our Email 
Encryption products and services to high-profile customers in the healthcare, financial services and government segments of the 
market. The acceptance and use of our products and services by those significant customers facilitates our sales to potential customers, 
and an expanding base of users in the Zix Directory aids in our market penetration and expansion. The loss of an influential customer 
of our existing products and services, or the failure to achieve sufficient market adoption of new products including ZixDLP and 
ZixOne, could impair our ability to expand the market penetration of our products and services, or cause us to reduce or increase 
prices, which could reduce our revenues and net income and materially adversely affect our business, financial condition and financial 
results.  

Unfavorable economic environments could negatively affect our business, financial condition and financial results.  

Challenging economic conditions worldwide have from time to time contributed, and may continue to contribute, to slowdowns 

in technology and networking industries at large, as well as in the specific markets in which we operate. If economic growth in those 
markets is slow, or credit is unavailable at a reasonable cost, current and potential customers may delay or reduce technology 
purchases, including the deployment or expansion of our products and services. This could result in reduced sales of our products and 
services, longer sales cycles, slower adoption of new technologies and increased price competition. In addition, adverse economic 
conditions could negatively affect the cash flow of our customers and distributors, which might result in failures or delays in payments 
to us. This could increase our credit risk exposure and delay our recognition of revenue. Specific economic trends, such as declines in 
the demand for cloud computing services and computing devices, or softness in corporate information technology spending, could 
have a more direct impact on our business. If these conditions persist, spread or deteriorate further, our business, financial condition 
and financial results could be materially adversely affected.  

Our failure to keep pace with rapid technology changes could have a negative impact on our business, financial condition and 
financial results.  

The markets for our products and services are characterized by rapid technological developments and frequent changes in 

customer requirements. We must continually improve the performance, features and reliability of our products and services, 
particularly in response to competitive offerings, to keep pace with these developments. We must ensure that our products and 
services address evolving operating environments, devices, industry trends, certifications and standards. For example, we have been 
required to expand our offerings for virtual computer environments and mobile environments to support a broader range of mobile 
devices. We also may need to develop products that are compatible with new operating systems while remaining compatible with 
existing, popular operating systems. Our business could be harmed by our competitors announcing or introducing new products and 
services that could be perceived by customers as superior to ours. We spend considerable resources on technology research and 
development, but our research and development resources are more limited than many of our competitors. Our failure to introduce 
new or enhanced products on a timely basis, to keep pace with rapid industry, technological or market changes or to gain customer 

9 

 
 
 
  
acceptance for our new and existing products and services, such as mobile device data protection, could have a material adverse effect 
on our business, financial condition and financial results.  

If our products do not work properly, our business, financial condition and financial results could be negatively affected and 
we could experience negative publicity, declining sales and legal liability.  

We produce complex products that incorporate leading-edge technology, including both hardware and software, that must 

operate in a wide variety of technology environments. Software may contain defects or “bugs” that can interfere with expected 
operations. There can be no assurance that our testing programs will be adequate to detect all defects prior to the product being 
introduced, which might decrease customer satisfaction with our products and services. The product reengineering cost to remedy a 
product defect could be material to our operating results. Our inability to cure a product defect could result in the temporary or 
permanent withdrawal of a product or service, negative publicity, damage to our reputation, failure to achieve market acceptance, lost 
revenue and increased expense, any of which could have a material adverse effect on our business, financial condition and financial 
results.  

The infrastructure supporting our business may suffer capacity constraints and business interruptions that could cause us to 
lose customers, increase our operating costs and could negatively affect our business, financial condition and financial results.  

Our business depends on our providing our customers reliable, real-time access to our data centers and networks. Customers will 

not tolerate a service hampered by slow delivery times, unreliable service levels, service outages, or insufficient capacity. System 
capacity limits or constraints arising from unexpected increases in our volume of business or network traffic could cause interruptions, 
outages or delays in our services, or deterioration in their performance, or could impair our ability to process transactions. We may not 
be able to accurately project the rate of increase in usage of our systems or to timely increase capacity to accommodate increased 
traffic on our systems. System delays or interruptions may prevent us from efficiently providing services to our customers or other 
third parties, which could result in our losing customers and revenues, or incurring liabilities that could have a material adverse effect 
on our business, financial condition and financial results.  

Our business depends substantially on our data center facilities, and their unreliability or unavailability for a significant 
period could cause us to lose customers and could negatively affect our business, financial condition and financial results.  

Much of the computer and communications hardware upon which our businesses depend is located in our data center facilities 
in Dallas and Austin, Texas and in the United Kingdom. Our data centers might be damaged or interrupted by fire, flood, power loss, 
telecommunications failure, break-ins, cyber attacks, earthquakes, terrorist attacks, hostilities or war or other events. Computer 
viruses, equipment failure, denial of service attacks, and similar disruptions affecting the internet or our systems might cause service 
interruptions, delays and loss of critical data, and could prevent us from providing our services. Problems affecting our data center 
operations or the networks on which we rely could result in loss of revenues, increased expenses, failure to achieve market acceptance, 
diversion of resources, injury to our reputation, liability and increased costs. We do not carry sufficient insurance to compensate us for 
all losses that may occur as a result of any of these events. The occurrence of any of these events could materially adversely affect our 
business, financial condition and financial results.  

Outages or problems with systems and infrastructure supplied by third parties could negatively affect our business, financial 
condition and financial results.  

Our business relies on third-party suppliers of the telecommunications infrastructure. We use various communications service 
suppliers and the global internet to provide network access between our data centers, our customers and end-users of our services. If 
those suppliers do not enable us to provide our customers with reliable, real-time access to our systems, we may be unable to gain or 
retain customers. These suppliers periodically experience outages or other operational problems as a result of internal system failures 
or external third party actions. Though our products generally tolerate isolated supplier failures, multiple supplier outages or problems 
could materially adversely affect our business, financial condition and financial results.  

The security of our networks and data centers is critical to our business and a breach of security through a cyber-attack or 
otherwise could cause us to lose customers and could negatively affect our business, financial condition and financial results.  

We are dependent on our networks and datacenters to provide our products and services. Due to the nature of the products and 

services we provide and the sensitive nature of the information we collect, process, store, use and transmit, we may face cyber attacks 
that attempt to penetrate our networks and datacenters. To reduce the risk of a successful cyber attack, we have implemented 
significant physical and logical security measures to detect, identify and mitigate threats as well as to monitor for and respond to 
potential breaches and incidents. Despite these security measures, our networks and datacenters may remain vulnerable to cyber 

10 

 
 
 
  
attack. Cyber attacks and other breaches of security at our datacenters and networks could cause negative publicity, interruption of our 
services, damage to our reputation, unauthorized disclosure of our customers’ confidential or proprietary information (including 
personally identifiable information), disclosure of our intellectual property, loss of customers, lost revenue and increased expense 
(including potentially indemnification or warranty costs), any of which could have a material adverse effect on our business, financial 
condition and financial results.  

Our usage of personal information, and inadvertent exposure of confidential or personal information, could cause us to violate 
data privacy laws or lose customers and could negatively affect our business, financial condition and financial results.  

We transmit large amounts of encrypted personally identifiable information about individuals, such as personal healthcare or 

financial information. Our processing and storage of these types of data incident to transmission is subject to confidentiality 
agreements with our clients and handling of this data is increasingly subject to regulation around the world. These regulations may 
result in conflicting requirements and may change over time. Our business could be materially adversely affected if our contractual 
obligations or legal restrictions on the processing of personally identifiable information are expanded or are interpreted in ways that 
conflict with our business practices or increase our costs. Unauthorized disclosure of personal or other confidential information 
(including due to a cyber-attack) or other failure by us to comply with data privacy requirements could subject us to significant 
penalties, damages, remediation and other expenses, and damage to our reputation, any of which could have a material adverse effect 
on our business, financial condition and financial results  

Problems with enforcing our intellectual property rights or using third party intellectual property could negatively affect our 
business, financial condition and financial results.  

We rely on a combination of contractual rights, trademarks, trade secrets, patents and copyrights to establish and protect 
intellectual property rights and other proprietary rights in our products and services. These intellectual property rights or other 
proprietary rights might be challenged, invalidated or circumvented. The steps we have taken to protect our proprietary information 
may not prevent its misuse, theft or misappropriation. Competitors may independently develop technologies or products that are 
substantially equivalent or superior to our products or that inappropriately incorporate our intellectual property rights or other 
proprietary technology into their products. Competitors may hire our former employees who may misappropriate our intellectual 
property rights or other proprietary technology. Some jurisdictions may not provide adequate legal protection of our intellectual 
property rights or other proprietary technology.  

We may have to defend our rights in intellectual property that we use in our services, and we could be found to infringe the 
intellectual property rights of others, which could be disruptive and expensive to our business.  

We may have to defend against claims that we or our customers are infringing the rights of third parties in patents, copyrights, 

trademarks and other intellectual property. If we acquire technology to include in our products from third parties, our exposure to 
infringement actions may increase because we must rely upon these third parties to verify the origin and ownership of such 
technology. Intellectual property litigation and controversies are disruptive and expensive. Even unmeritorious claims brought against 
us or our customers may harm our reputation and customer relationships, may cause us to incur significant legal and other fees to 
defend, and may have to be settled for significant amounts. Infringement claims could require us to develop non-infringing services or 
enter into expensive royalty or licensing arrangements. Our business, financial condition and financial results could be materially 
adversely affected if we are not able to develop non-infringing technology or license technology on commercially reasonable terms.  

We may face risks from using “open source” software that could negatively affect our business, financial condition and 
financial results.  

Like many other software companies, we use “open source” software in order to take advantage of common industry building 
blocks and to add functionality to our products quickly and inexpensively. Open source software license terms could adversely affect 
our intellectual property rights in our products that include open source software. We could lose the right to use the open source code 
if we fail to comply with the license obligations. Using open source code could also cause us to inadvertently infringe third-party 
intellectual property rights or require us to publicly disclose proprietary information. We have processes and controls in place that are 
designed to address these risks and concerns, but we cannot be sure that all open source software is submitted for approval prior to use 
in our products nor that our process or controls will be sufficient to mitigate all risk in this regard.  

We may fail to recruit and retain key personnel, which could impair our ability to meet key objectives.  

Our success depends on our ability to attract and retain highly-skilled technical, managerial, sales, and marketing personnel. 

Changes in key personnel may be disruptive to our business. It could be difficult, time consuming and expensive to replace key 

11 

 
 
  
personnel. Integrating new key personnel may be difficult and costly. Volatility, lack of positive performance in our stock price or 
changes to our overall compensation program including our stock incentive program may adversely affect our ability to retain key 
employees, many of whom are compensated, in part, based on the performance of our stock price. The loss of services of any of our 
key personnel, the inability to retain and attract qualified personnel in the future or delays in hiring required personnel could make it 
difficult to meet key objectives. Any of these impairments related to our key personnel could negatively affect our business, financial 
condition and financial results.  

Governmental restrictions on the sale of our products and services in non-U.S. markets could negatively affect our business, 
financial condition and financial results.  

Exports of software solutions and services using encryption technology such as ours are generally restricted by the U.S. 

government. Although we have obtained U.S. government approval to export our service to almost all countries, the list of countries to 
which we (and our distributors) cannot export our products and services could be expanded in the future. In addition, some countries 
impose restrictions on the use of encryption solutions and services such as ours. The cost of compliance with U.S. and other export 
laws, or our failure to obtain governmental approvals to offer our products and services in non-U.S. markets, could affect our ability to 
sell our products and services and could impair our international expansion. We face a variety of other legal and compliance risks. If 
we or our distributors fail to comply with applicable law and regulations, we may become subject to penalties, fines or restrictions that 
could materially adversely affect our business, financial condition and financial results.  

Exercises of options for our common stock would dilute the ownership interests of existing shareholders and could negatively 
affect the value of our securities.  

We have a significant number of outstanding options, including options held by our employees. The exercise of options, and the 
resulting issuance of additional shares of our common stock, would substantially dilute the ownership interests and voting rights of our 
current shareholders. Issuance or sales of those additional shares could cause our securities to decline in value.  

Item 1B. Unresolved Staff Comments  

None.  

Item 2. Properties  

We leased properties during 2013 that are considered significant to the operations of the business in the following locations: 

Burlington, Massachusetts; Ottawa, Ontario, Canada; the United Kingdom; and Dallas and Austin, Texas. Our Burlington employees 
perform sales and marketing activities. Our Ottawa employees perform both client services and sales support activities. The United 
Kingdom facility provides data center support for our European customers. The Dallas office is our headquarters, which includes 
research and development, marketing, sales and all general administrative services, and the ZixData Center. Our Austin location is 
used primarily for fail-over and business continuity services and is used to some extent to support normal ongoing operations. Our 
facilities are suitable for our current needs and are considered adequate to support expected near term growth.  

Item 3. Legal Proceedings  

We are subject to legal proceedings, claims, and litigation against our business. While the outcome of these matters is currently 

not determinable, and the costs and expenses of defending these matters may be significant, we currently do not expect that the 
ultimate costs to resolve these matters will have a material adverse effect on our consolidated financial statements.  

Item 4. Mine Safety Disclosures  

Not applicable.  

12 

 
 
  
  
PART II  

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

Our common stock trades on The Nasdaq Stock Market under the symbol ZIXI. The table below shows the high and low sales 

prices by quarter for fiscal 2013 and 2012.  

Quarter Ended 
March 31 ............................................................................................................ $ 
June 30 ............................................................................................................... $ 
September 30 ...................................................................................................... $ 
December 31 ...................................................................................................... $ 

2013  

2012  

High  

Low  

High  

Low  

3.90  $ 
4.32  $ 
5.03  $ 
4.97  $ 

2.84  $ 
3.37  $ 
4.09  $ 
3.90  $ 

3.41  $ 
3.05  $ 
2.99  $ 
3.10  $ 

2.82 
2.38 
2.40 
2.50 

At March 7, 2014, there were 59,606,164 shares of common stock outstanding held by 447 stockholders of record. On that date, 

the last reported sales price of the common stock was $4.61.  

We have not paid any cash dividends on our common stock and do not anticipate doing so in the foreseeable future.  

For information regarding options and stock-based compensation awards outstanding and available for future grants, see “Item 

12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.”  

Performance Graph  

The following graph compares the cumulative total return of an investment in our common stock over the five-year period 
ended December 31, 2013, as compared with the cumulative total return of an investment in (i) the Center for Research in Securities 
Prices (“CRSP”) Total Return Index for Nasdaq Stock Market (U.S. companies) and (ii) the CRSP Total Return Index for Nasdaq 
Computer and Data Processing Stocks. The comparison assumes $100 was invested on December 31, 2008, in our common stock and 
in each of the two indices and assumes reinvestment of dividends, if any. The stock price performance on the following graph is not 
necessarily indicative of future stock performance. A listing of the companies comprising each of the CRSP- NASDAQ indices used 
in the following graph is available, without charge, upon written request.  

Comparison of 5 Year Cumulative Total Return
Assumes Initial Investment of $100
December 2013

450.00

400.00

350.00

300.00

250.00

200.00

150.00

100.00

50.00

0.00

2008

2009

2010

2011

2012

2013

Zix Corp.

NASDAQ Stock Market (US Companies)

NASDAQ Computer and Data Processing Index

Sale of Unregistered Securities  

None.  

13 

 
 
  
 
 
  
  
  
  
  
Purchases of Equity Securities by the Issuer  

Total Number 
of Shares 
Purchased

Average Price 
Paid per Share

Total Number 
of Shares 
Purchased as part 
of Publicly 
Announced 
Plans or  Programs1 

Maximum Number (or 
Approximate Dollar Value) 
of Shares (or Units) that 
May Yet Be 
Purchased Under the Plans 
or Programs

Period 
October 1, 2013 to October 31, 

2013 ...........................................

November 1, 2013 to 

0 

November 30, 2013 ...................

1,505,900  $ 

December 1, 2013 to 

December 31, 2013 ....................
Total ...............................................

471,000  $ 
1,976,900  $ 

—   

4.43 

4.43 
4.43 

0    

1,505,900   $ 

471,000   $ 
1,976,900   $ 

—   

8,326,000 

6,240,000 
6,240,000 

1   The shares were repurchased under the $15 million stock repurchase program announced November 6, 2013 that expires June 30, 

2014. No shares were purchased other than through publicly announced programs during the periods shown.  

Item 6. Selected Financial Data  

The following selected financial data should be read in conjunction with “Item 7. Management’s Discussion and Analysis of 

Financial Condition and Results of Operations,” the consolidated financial statements and notes thereto. No cash dividends were 
declared in any of the five years shown below:  

Year Ended December 31,  

2013  

2012  

2011  

2010  

2009  

(In thousands, except per share data)

7,609 
35,747 
7,419 
19,385 
(1,949)
11,003 

7,614 
40,524 
9,563 
21,646 
(1,006)
10,453 

Statement of Operations Data: 
Revenues ............................................................................................ $  48,138  $  43,356  $ 
Cost of revenues .................................................................................
Gross margin ......................................................................................
Research and development expenses .................................................
Selling, general and administrative expenses .....................................
Income tax (benefit) expense to continuing operations (1) ..................
Income from continuing operations ...................................................
Basic income per common share from continuing operations ........... $ 
Diluted income per common share from continuing operations ........ $ 
Shares used in computing basic income per common share ..............
Shares used in computing diluted income per common share ...........
Statements of Cash Flows Data: 
Net cash flows provided by (used for): 
Operating activities ............................................................................ $  13,298  $  12,533  $ 
Investing activities .............................................................................
Financing activities ............................................................................
Balance Sheet Data: 
Cash, Cash Equivalents and Marketable Securities ........................... $  27,518  $  22,988  $ 
Working capital (deficit)(2) .................................................................
Total assets .........................................................................................
Debt obligations .................................................................................
Stockholders’ equity (deficit).............................................................

12,127 
90,702 
—   
66,234 

6,626 
82,849 
—   
61,245 

0.17  $ 
0.17  $ 

0.18  $ 
0.17  $ 

62,211 
62,875 

61,139 
62,527 

(1,593)
(7,175)

(1,533)
(8,692)

38,145   $ 
7,211  
30,934  
5,229  
15,128  
(11,889)
22,554  

0.34   $ 
0.34   $ 

65,439  
67,262  

33,066  $  26,407 
4,576 
6,468 
21,831 
26,598 
3,619 
5,089 
15,927 
16,363 
(35,500)
67 
2,411 
40,720 
0.04 
0.04 
63,422 
64,051 

0.63  $ 
0.61  $ 

64,401 
66,742 

13,219   $ 
(1,471)
(15,687)

7,190  $ 
(1,467)
5,609 

603 
(1,138)
577 

20,680   $ 
5,497  
77,552  
—    
57,757  

24,619  $  13,312 
(3,283)
9,822 
19,748 
66,852 
312 
186 
(1,989)
46,887 

Operations Data in the preceding table excludes all activity of the discontinued operations.  

(1)  The $1.0 million, $1.9 million, $11.9 million and $35.5 million tax benefits in 2013, 2012, 2011 and 2010 resulted from the 
release of a portion of our deferred tax asset valuation allowance. Based on analysis of both projected and current earnings 
excluding discontinued operations, we have estimated these tax assets as likely to be utilized prior to expiration. See “Income 
Taxes” in “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.”  

14 

 
 
  
 
 
 
 
 
 
 
 
 
 
  
  
 
 
  
  
  
  
  
  
  
 
 
  
  
  
  
  
  
 
 
 
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
(2)  Working capital includes deferred revenue totaling $19.1 million, $17.5 million, $16.6 million, $15.3 million, and $14.5 million 

as of December 31, 2013, 2012, 2011, 2010 and 2009 respectively.  

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations  
Forward-Looking Statements  

The following discussion and analysis contains forward-looking statements about trends, uncertainties and our plans and 

expectations of what may happen in the future. Forward-looking statements involve risks and uncertainties that could cause actual 
events or results to differ materially from the events or results described in the forward-looking statements, including risks and 
uncertainties described above in “Item 1A. Risk Factors.” Readers are cautioned not to place undue reliance on forward-looking 
statements. The forward-looking statements are based upon information available to us on the date of this report. We undertake no 
obligation to publicly update or revise any forward-looking statements.  

Overview  

We are a leader in providing secure email encryption in a SaaS model. We provide email encryption, DLP and BYOD solutions 

to meet the data protection and compliance needs of organizations primarily in the healthcare, finance, insurance, and government 
sectors. A core competency is our ability to deliver this complex service offering with a high level of availability, reliability, integrity 
and security.  

We are encouraged by 2013 results which included record revenues and the successful introduction of two new service 
offerings, ZixDLP and ZixOne. We attribute our success to continuing efforts to build a solid and predictable business based on our 
successful recurring revenue subscription business model. For 2013 we continued to benefit from growing concerns for data security 
and integrity issues which continue to make headline news as well as the growing acceptance of cloud-based offerings along with the 
growing need for regulatory compliance.  

For 2013, we reported record revenue of $48.1 million driven by continued growth in our Email Encryption business. The 

Company’s operating income for 2013 was $9.3 million, an increase of $0.4 million over prior year, resulting from 11% growth in 
revenue that was partially offset by increases in selling and marketing expenses and additional investments in R&D.  

Our net income in 2013 included a tax benefit of $1.4 million resulting from a decrease in our deferred tax valuation allowance. 

The overall decrease to our valuation allowance was $4.1 million, of which $2.7 million was due to operations and offset current tax 
expense. The remaining $1.4 million was due to a partial reversal of the remaining valuation allowance and recorded as tax benefit. 
This compares to a decrease in our deferred tax asset valuation allowance and resulting tax benefit of $2.3 million in 2012. Net income 
for 2013 and 2012 excluding the impact of this tax benefit was $9.1 million and $8.7 million, respectively.  

Our services are sold on a subscription basis with contract terms generally ranging from one to five years. We provide a 
financial incentive to our customers and sales force to contract for three to five years. Historically, most of our customers contract for 
three year terms, except for our large partner orders (i.e. “OEM” orders) which are one year terms. At the end of the contract term we 
attempt to renew the subscription, again attempting to secure a three to five year term. Our customers pay us annually at the start of 
the subscription term and each succeeding year on the anniversary of the commencement of the service. We recognize revenue ratably 
on a monthly basis over the term of the subscription.  

We attempt to grow the business by signing new customers to subscription services and/or selling new or higher volume 

services to existing customers (i.e. “upsell”) while retaining existing customers through renewal of their services.  

Our total orders consist of both orders from new customers and upsell to existing customers plus renewal orders. Total orders 

may vary from quarter to quarter due to the timing of renewal orders which will fluctuate in amount due to timing and length of 
expiring subscription terms. Similarly, total new orders and upsell orders will fluctuate in amount due to term length.  

To better understand new orders, management tracks the first year value of new orders as well as the total order value for the 

subscription term because total order value will exceed the first year value on multi-year orders. By segregating the first year value of 
new orders, we eliminate the fluctuation in total order amount caused by the dollar impact of multi-year contracts. We refer to this 
metric as, New First Year Orders (“NFYO”).  

Our backlog consists of the order value of contracted business that has not yet been recognized into revenue. Backlog is 
calculated by adding to existing deferred revenue the total value of all orders booked in the period (i.e. quarterly) less the value of 

15 

 
 
  
revenue recognized for the period. Although orders are non-cancellable, occasionally we adjust backlog for customer bankruptcy or 
change of term, but these instances are rare and do not materially impact the backlog amount. The backlog amount will grow if the 
value of total orders exceeds the value of revenue recognized in the period. Conversely, the backlog amount will decline if revenue 
recognized exceeds the total order value for the period. Although rare, a decline in backlog may result from fluctuations in total orders 
caused by timing of renewal orders described above.  

We retain approximately 90% of our recurring revenue on an annual basis. We calculate this percentage by comparing the 
annual recurring revenue to the annual recurring revenue plus annual revenue lost from cancelled subscriptions. Deferred revenue is 
the value of contracted business that has been paid but has not been recognized as revenue. See description of the components of the 
backlog following in Item 7 of this Form 10-K under the heading, “Backlog and Orders.”  

Our revenue growth is dependent on our ability to sell subscription services to new customers, upsell new services or increase 

volume with existing customers and retain existing customers by renewing their subscription services. Generally, if NFYO exceed the 
annual value of cancelled subscriptions, revenue should grow. However, revenue growth may fluctuate due to timing of deployment of 
new services and subscription cancellations. For example, a NFYO reported in one quarter may not be deployed until the following 
quarter and therefore delay commencement of revenue recognition. Similarly, a cancellation of a contract with an expiration in the 
first month of a quarter will have a higher negative impact on revenue in the quarter than a contract of the same amount with an 
expiration in the last month of a quarter. The impact of these quarter to quarter fluctuations tends to diminish over annual periods 
making year over year quarterly revenue comparisons more indicative of revenue growth than sequential quarterly revenue 
comparisons.  

Our operations and future prospects are further discussed throughout this “Management’s Discussion and Analysis of Financial 

Condition and Results of Operations” (“MD&A”).  

There are no assurances we will be successful in our efforts to achieve continued growth. Our continued growth depends on the 

timely development and market acceptance of our products and services. See “Item 1A. Risk Factors” for more information on the 
risks relative to our operations and future prospects.  

Revenue  

Revenue increased by 11% in 2013 compared with 2012. Our revenue growth was driven by our successful subscription model 

that continues to yield steady additions to the subscriber base coupled with a high rate of renewing existing customers.  

Operating Margins  

For the year ended December 31, 2013, our gross profit of $40.5 million increased 13% compared to 2012. This increase was 
primarily driven by increased revenue and flat cost of sales. Our 2013 operating income of $9.3 million increased $0.4 million over 
the prior year, as the gross profit increase was largely offset by increased R&D and Selling and Marketing expenses. Net income for 
2013 included a tax benefit of $1.4 million resulting from a decrease in our deferred tax asset valuation allowance. The overall 
decrease to our valuation allowance was $4.1 million, of which $2.7 million was due to 2013 operations and offset current tax 
expense. Net income for 2012 included a tax benefit of $2.3 million resulting from a decrease in our deferred tax asset valuation 
allowance. The overall decrease to our valuation allowance was $5.2 million, of which $2.9 million was due to 2012 operations and 
offset current tax expense. The remaining $2.3 million was due to a partial reversal of the remaining valuation allowance and recorded 
as a tax benefit in 2012. Net income for 2013 and 2012 excluding the impact of this tax benefit was $9.1 million and $8.7 million, 
respectively.  

Other Financial Highlights  

• 

• 

• 

Backlog was $65.7 million at the end of 2013, compared with $57.7 million at the end of 2012  
Total orders for 2013 were $56.6 million, an increase of 17% from the 2012 total orders of $48.2 million  
Our deferred revenue at the end of 2013 was $20.4 million, compared with $18.4 million at the end of 2012  

•  We generated cash flows from operations of $13.3 million during fiscal 2013. Our cash and cash equivalents were $27.5 

million at the end of 2013, compared with $23.0 million at the end of 2012.  

• 

Our shared, cloud-based ZixDirectory now has approximately 40 million members including some of the most respected 
institutions in the country.  

16 

 
 
  
  
Critical Accounting Policies and Estimates  

In preparing our consolidated financial statements, we make estimates, assumptions and judgments that can have a significant 
impact on revenue, income from operations and net income, as well as the value of certain assets and liabilities on our consolidated 
balance sheet. The application of our critical accounting policies requires an evaluation of a number of complex criteria and significant 
accounting judgments by us. Management bases its estimates on historical experience and on various other assumptions that are 
believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values 
of assets and liabilities. We evaluate our estimates on a regular basis and make changes accordingly. Senior management has 
discussed the development, selection and disclosure of these estimates with the Audit Committee of our Board of Directors. Actual 
results may materially differ from these estimates under different assumptions or conditions. If actual results were to differ from these 
estimates materially, the resulting changes could have a material adverse effect on our consolidated financial statements.  

We consider accounting policies to be critical when they require us to make assumptions about matters that are highly uncertain 

at the time the accounting estimate is made and when different estimates that our management reasonably has used have a material 
effect on the presentation of our financial condition, changes in financial condition or results of operations. Management believes the 
following critical accounting policies reflect our more significant estimates and assumptions used in the preparation of the 
consolidated financial statements.  

Our critical accounting policies included the following:  

• 

• 

• 

• 

Revenue recognition  
Income taxes  
Valuation of goodwill and other intangible assets  
Stock-based compensation costs  

For additional discussion of the Company’s significant accounting policies, refer to Note 2 to our consolidated financial 

statements.  

Revenue Recognition  

We develop, market, and support applications that connect, protect and deliver information in a secure manner. Our services can 
be placed into several key revenue categories where each category has similar revenue recognition traits: Email Encryption, DLP, and 
BYOD email subscription-based services, various transaction fees and related professional services. The majority of our revenues are 
generated through a combination of direct sales and a network of resellers and other distribution partners.  

Under all product categories and distribution models, we recognize revenue after all of the following occur:  

• 

• 

• 

• 

persuasive evidence of an arrangement exists,  
delivery has occurred or services have been rendered,  
the price is fixed and determinable, and  
collectability is reasonably assured.  

Discounts provided to customers are recorded as reductions in revenue.  

Our Email Encryption, DLP, and BYOD email services are subscription-based. Providing these services includes delivering 
subscribed-for software and providing secure electronic communications and customer support throughout the subscription period. 
Our subscribers generally execute multiple-year contracts that are irrevocable and non-refundable in nature and require annual, up-
front payments. Subscription fees received from customers are initially recorded as deferred revenue and then recognized as revenue 
ratably over the subscription period. We do not offer stand alone services. Further, our services primarily include manufacturer 
provided warranty provisions. We recorded no warranty expense in any of the presented periods.  

Income Taxes  

Deferred tax assets are recognized if it is “more likely than not” that the benefit of the deferred tax asset will be realized on 
future federal or state income tax returns. At December 31, 2013, we provided a valuation allowance against a significant portion, 
$46.2 million, of our accumulated U.S. deferred tax assets. This significant valuation allowance reflects our historical losses and the 

17 

 
 
uncertainty of future taxable income sufficient to utilize net operating loss carryforwards prior to their expiration. Our total deferred 
tax asset not subject to a valuation allowance is valued at $54.1 million, and consists of $45.3 million for federal net operating loss 
carryforwards, $5.7 million relating to temporary timing differences between GAAP and tax-related expense, $2.0 million relating to 
U.S. state income tax credits, and $1.1 million related to Alternative Minimum Tax credits. If U.S. taxable income increases from its 
current level in a future period or if the facts and circumstances on which our estimates and assumptions are based were to change, 
thereby impacting the likelihood of realizing the deferred tax assets, judgment would have to be applied in determining the amount of 
valuation allowance no longer required. Reversal of all or a part of this valuation allowance could have a significant positive impact 
on operating results in the period that it becomes more likely than not that certain of the Company’s deferred tax assets will be 
realized. Alternatively, should our future income decrease from current levels, a resulting increase to all or a part of this valuation 
allowance could also have a significant negative impact on our operating results.  

The Company previously recorded a $327 thousand tax contingency liability related to tax year 2004, and that amount and the 

specifics therein have remained unchanged except for currency translation adjustments. As of December 31, 2010, the gross amount of 
our unrecognized tax benefits, inclusive of the $327 thousand tax liability and $50 thousand in other uncertain positions in 2008, was 
approximately $461 thousand. Because the statute of limitations expired on the returns associated with these uncertain positions, this 
contingency was reversed in 2011, creating a positive impact on our operating results.  

Valuation of Goodwill and Other Intangible Assets  

We account for the valuation of goodwill and other intangible assets after classifying intangible assets into three categories: 
(1) intangible assets with finite lives subject to amortization; (2) intangible assets with indefinite lives not subject to amortization; and 
(3) goodwill. For intangible assets with finite lives, tests for impairment must be performed if conditions exist that indicate that the 
carrying value may not be recoverable. For intangible assets with indefinite lives and goodwill, tests for impairment must be 
performed at least annually or more frequently if events or circumstances indicate that assets might be impaired.  

Goodwill was $2.2 million, or 2% and 3% of total assets for the years ended December 31, 2013 and 2012, respectively.  

Our goodwill is not being amortized, but we do evaluate the goodwill for impairment annually in the fourth quarter, or when 

there is reason to believe that the value has been diminished or impaired. Evaluations for possible impairment are based upon a 
comparison of the estimated fair value of the reporting unit to which the goodwill has been assigned, versus the sum of the carrying 
value of the assets and liabilities of that unit including the assigned goodwill value. The fair values used in this evaluation are 
estimated based on the Company’s market capitalization, which is based on the outstanding stock and market price of the stock. 
Impairment is deemed to exist if the net book value of the unit exceeds its estimated fair value. We have evaluated our goodwill and 
determined no impairment is required.  

Stock-based Compensation  

We have non-qualified stock options outstanding to employees, directors, and third parties under various stock option plans. The 

plans require the exercise price of options granted under these plans to equal or exceed the fair market value of the Company’s 
common stock on the date of grant. The options, subject to termination of employment, generally expire ten years from the date of 
grant. Employee options typically vest pro-rata and quarterly over three or four years. Option grants to employees, officers and 
directors frequently contain accelerated vesting provisions upon the occurrence of a change of control, as defined in the applicable 
option agreements. We use the straight-line amortization method for recognizing stock option compensation costs. Our share-based 
awards include stock options, restricted stock and restricted stock units (“RSU’s”). The weighted average grant-date fair value of 
awards of restricted stock and RSU’s is based on quoted market price of the Company’s common stock on the date of grant.  

Full Year 2013 Summary of Operations  
Financial  

• 

• 

• 

Revenue for 2013 was $48.1 million compared with $43.4 million in 2012 and $38.1 million in 2011.  

Gross margin for 2013 was $40.5 million or 84% of revenues compared to $35.7 million or 82% of revenues in 2012 and 
$30.9 million or 81% of revenues in 2011.  

Net income for the year 2013 was $10.5 million compared with net income of $11.0 million in 2012 and net income of 
$22.6 million in 2011. Net income for 2013 included a tax benefit of $1.4 million resulting from a decrease in our deferred 
tax valuation allowance. The overall decrease to our valuation allowance was $4.1 million, of which $2.7 million was due 
to operations and offset current tax expense. The remaining $1.4 million was due to a partial reversal of the remaining 
valuation allowance and was recorded as a tax benefit. The tax benefit recorded on the reduction of our deferred tax 
valuation allowance in 2012 and 2011 was $2.3 million and $11.8 million, respectively.  

18 

 
 
  
• 

Unrestricted cash was $27.5 million on December 31, 2013.  

Results of Operations  
Revenue  

The following table sets forth a year-over-year comparison of our total revenues:  

Year Ended December 31,  

Variance 
2013 vs. 2012  

Variance 
2012 vs. 2011  

(In thousands) 
Revenues ......................................................................... $  48,138  $  43,356  $  38,145  $  4,782 

2013  

2012  

2011  

$  

%  

$  

%  

  11% $  5,211 

  14%

Our growth model seeks to continually add new users to the subscriber base, while at the same time retaining a high percentage 
of existing subscribers whose subscriptions are up for renewal. Across all periods presented, revenue increases were driven primarily 
by strong performances in our three core vertical sales markets: healthcare, finance and government and other non-core markets. 
Additionally, sales continued from a wide base of distributors – new first year orders derived from our value-added resellers, OEM 
and third party distribution channels for 2013 was 59% of the total NFYOs compared to 63% in 2012 and 52% in 2011. We measure 
additions to the subscriber base by NFYO, which is defined as the portion of new orders that are expected to be recognized into 
revenue in the first twelve months of the contract. NFYOs are summarized in the table below:  

(In thousands) 
New first year order value ............................................................................. $ 

Year Ended December 31,  

2013  

2012  

2011  

9,020  $ 

8,993   $ 

7,081 

Our go-to-market selling strategy promotes multiple-year subscription contracts with the fees paid annually at the inception of 

each year of service. As a result, a high percentage of customers subscribe for a three-year term versus a one-year term. We expect this 
preference for a longer contract term by a high percentage of our customers to continue in 2014, as we have priced our services in a 
manner that encourages longer-term contractual commitments from customers.  

Our list pricing has remained generally consistent during the periods shown above. We have continued to experience some 

market pricing pressure resulting in additional discount percentages off our list price during this period. There are no assurances that 
potential increased competition in this market or other factors will not result in future price erosion. Price erosion, should it occur, 
could have a dampening effect on the revenue derived from our new orders.  

Revenue Outlook:  

We expect continued growth in our core Email Encryption offering combined with our new products, along with increased sales 

from our indirect OEM distribution and value-added reseller channels. We plan to increase investment in sales and marketing 
resources which, if successful, are expected to increase our new first year orders in 2014 and fuel an acceleration of growth in our 
year-over-year revenue.  

Backlog and Orders  

Backlog — Our backlog was $65.7 million at December 31, 2013 compared to $57.7 million at December 31, 2012. The 

backlog is comprised of contractually bound agreements that we expect to amortize into revenue. As of December 31, 2013, the 
backlog was comprised of the following elements: $20.3 million of deferred revenue that has been billed and paid, $6.0 million billed 
but unpaid, and approximately $39.4 million of unbilled contracts.  

The backlog is recognized into revenue ratably as the services are performed. Approximately 54% of the total backlog is 

expected to be recognized as revenue during the next twelve months.  

Orders — Total orders in 2013 were $56.6 million compared with $48.2 million in 2012. Total orders are comprised of contract 

renewals, NFYOs, and in the case of new multi-year contracts, the years beyond the first year of service.  

19 

 
 
  
 
 
  
  
  
  
  
 
 
 
  
  
  
  
Cost of Revenues  

The following table sets forth a year-over-year comparison of the cost of revenues.  

Year Ended December 31,  

Variance 
2013 vs. 2012  

Variance 
2012 vs. 2011  

(In thousands) 
Cost of revenues .......................................................................... $  7,614  $  7,609  $  7,211  $  5 

2013  

2012  

2011  

$  

%  

$  

0% $  398 

%  

6%

Cost of revenues is comprised of costs related to operating and maintaining the ZixData Center, a field deployment team, 
customer service and support and the amortization of Company-owned, customer-based computer appliances. A significant portion of 
the total cost of revenues relates to the ZixData Center, which currently has excess capacity. Accordingly, cost of revenues is 
relatively fixed and is therefore expected to grow at a slower pace than revenue.  

Cost of revenues for 2013 were flat compared to 2012 as increases in depreciation expense relating primarily to ZixOne 
hardware plus higher salaries and other employment related expenses for existing staff were offset by lower cost of bandwidth and 
lower software license fees. Although we expect cost of revenue to grow at a slower pace than revenue, we do not, however, expect it 
to be flat going forward and consider the year over year performance in 2013 compared to 2012 an anomaly due primarily to timing of 
cost reductions. The 6% increase in 2012 compared to 2011 resulted primarily from increases in average headcount.  

Research and Development Expenses  

The following table sets forth a year-over-year comparison of our research and development expenses from continuing 

operations:  

Year Ended December 31,  

Variance 
2013 vs. 2012  

Variance 
2012 vs. 2011  

(In thousands) 
Research and development expenses .................................... $  9,563  $  7,419  $  5,229  $  2,144 

2013  

2012  

2011  

$  

%  

$  

%  

  29% $  2,190 

  42%

Research and development expenses consist primarily of salary, benefits and stock-based compensation for our development 

staff, and other costs associated with improving our existing products and services and developing new products and services.  

The 29% increase in expenses in 2013 compared to 2012 resulted primarily from the full year cost impact in 2013 of headcount 
increases made primarily in the second half of 2012. Similarly, the 42% increase in expenses in 2012 compared to 2011 resulted from 
additional headcount added in the second half of 2012. The headcount increases described in this paragraph related primarily to new 
product development.  

Selling and Marketing Expenses  

The following table sets forth a year-over-year comparison of our selling and marketing expenses from continuing operations:  

Year Ended December 31,  

Variance 
2013 vs. 2012  

Variance 
2012 vs. 2011  

(In thousands) 
Selling and marketing expenses ........................................ $  13,416  $  10,984  $  9,196  $  2,432 

2013  

2012  

2011  

$  

%  

$  

%  

  22% $  1,788 

  19%

Selling and marketing expenses consist primarily of salary, commissions, travel, stock-based compensation and employee 

benefits for selling and marketing personnel as well as costs associated with promotional activities and advertising.  

The 22% increase in 2013 compared to 2012 resulted primarily from increases in average headcount including salaries and 

benefits and travel ($2.0 million). The remaining year over year variance ($0.4 million) resulted primarily from increases in 
advertising expenses.  

The 19% increase in 2012 compared to 2011 resulted primarily from higher sales commissions and bonuses resulting primarily 

from higher NFYOs and increase in average headcount ($1.0 million). We also acquired new sales and marketing tools and invested in 
marketing and advertising programs ($0.5 million). Stock-based compensation expense also increased by $0.2 million year-over-year. 

20 

 
 
  
 
 
  
  
  
  
 
 
  
 
 
  
  
  
  
  
  
 
 
  
  
  
  
The remaining variance consisted of relatively minor increases across various selling and marketing activities none of which were 
significant.  

General and Administrative Expenses  

The following table sets forth a year-over-year comparison of our general and administrative expenses from continuing 

operations:  

(In thousands) 
General and administrative expenses ...................................  $  8,230  $  8,401  $  5,932  $ 

2013  

2012  

2011  

Year Ended December 31,  

Variance 
2013 vs. 2012  

Variance 
2012 vs. 2011  

$  

%  

$  

%  

(171)   

(2%) $  2,469 

  42%

General and administrative expenses consist primarily of salary and bonuses, travel, stock-based compensation and benefits for 

administrative and executive personnel as well as fees for professional services and other general corporate activities and corporate 
governance.  

For the year 2013 compared to the same period in 2012, general and administrative costs decreased by 2%. This decrease 

resulted from lower outside legal counsel fees associated with litigation ($0.4 million), lower sales tax expense ($0.3 million), and 
lower utility expense resulting from lower electrical usage ($0.1 million). These cost reductions were partially offset by higher stock 
based compensation expense ($0.3 million), salary expense resulting from increased average headcount ($0.2 million) and other 
miscellaneous increases netting to $0.1 million.  

The increase in 2012 compared to 2011 resulted primarily from year-over-year increases in outside legal counsel fees associated 

with litigation ($1.7 million), stock-based compensation expense ($0.2 million), and salary and benefits expense resulting from 
increases in average headcount ($0.4 million). The remaining variance resulted primarily from normal increases in other 
administrative expenses none of which were significant.  

Income Taxes  

Our Company or one of our subsidiaries files income tax returns in the U.S. federal jurisdiction and various states and in the 

Canadian federal and provincial jurisdictions. We recognize and measure uncertain tax positions using a two-step approach. The first 
step is to evaluate the tax position for recognition by determining if the weight of available evidence indicates that it is more likely 
than not that the position will be sustained on audit, including resolution of related appeals or litigation processes, if any. The second 
step is to measure the tax benefit as the largest amount that is more than 50% likely of being realized upon settlement.  

The Company’s income tax benefit for 2013, 2012, and 2011 of $1.0 million, $1.9 million, and $11.9 million, respectively, 

represents refundable U.S. Alternative Minimum Tax, U.S. research and development credits, non-U.S. taxes payable related to the 
operations of the Company’s Canadian subsidiary established in late 2002, state income taxes, and reversals of a portion of the 
Company’s historical valuation allowance.  

Significant judgment is required in determining any valuation allowance recorded against deferred tax assets. In assessing the 
need for a valuation allowance, we consider available evidence, including past earnings, estimates of future taxable income, and the 
feasibility of tax planning strategies. At December 31, 2013, the Company partially reserved its U.S. net deferred tax assets due to the 
uncertainty of future taxable income sufficient to utilize net loss carryforwards prior to their expiration. The portion of the Company’s 
deferred tax asset not reserved was $54.1 million. The majority of this unreserved portion related to $45.3 million U.S. net operating 
losses (“NOLs”) because we believe the Company will generate sufficient taxable income in future years to utilize these NOLs prior 
to their expiration. The remaining balance consists of $5.7 million relating to temporary timing differences between GAAP and tax-
related expense, $2.0 million relating to U.S. state tax income credits, and $1.1 million related to Alternative Minimum Tax credits.  

We have determined that utilization of existing net operating losses against future taxable income is not limited by Section 382 

of the Internal Revenue Code. Future ownership changes, however, may limit the company’s ability to fully utilize its existing net 
operating loss carryforwards against any future taxable income.  

If we begin to generate additional U.S. taxable income in a future period or if the facts and circumstances on which our current 

estimates and assumptions are based were to change, thereby impacting the likelihood of realizing a greater or lesser amount of our 
deferred tax assets, judgment would have to be applied in determining the amount of valuation allowance required. Adjusting our 

21 

 
 
  
 
 
  
  
  
  
  
valuation allowance could have a significant impact on operating results in the period that it becomes more likely than not that an 
additional portion of our deferred tax assets will or will not be realized.  

Our provision for income taxes is subject to volatility and could be adversely impacted by earnings being lower or higher than 
anticipated; by tax effects of nondeductible compensation; or by changes in tax laws, regulations, or accounting principles, including 
accounting for uncertain tax positions or interpretations. Significant judgment is required to determine the recognition and 
measurement applicable to all income tax positions. This includes the potential recovery of previously paid taxes, which if settled 
unfavorably could adversely affect our provision for income taxes or additional paid-in capital. In addition, our income tax returns are 
subject to examination 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.  

Net Income  

Net Income – The Company generated net income of $10.5 million in 2013 compared to $11 million in 2012 and net income of 
$22.6 million in 2011. The net income in 2013 included a tax benefit of $1.4 million resulting from decrease in our deferred tax asset 
valuation allowance. The overall decrease to our valuation allowance was $4.1 million, of which $2.7 million was due to 2013 
operations and offset current tax expense. The remaining $1.4 million was due to a partial reversal of the remaining valuation 
allowance and recorded as a tax benefit. The decrease in the deferred tax valuation allowance in 2012 and 2011 resulted in a tax 
benefit of $2.3 million and $11.8 million, respectively. The following table summarizes this and other components included in the net 
income for these three years.  

(In thousands) 
Other Components included in Net Income: 

Year Ended December 31,  

2013  

2012  

2011  

Tax benefit due to decrease in the deferred tax asset valuation 

allowance .................................................................................. $ 

Decrease in Canadian uncertain tax position liability ...................

(1,400) $ 
—   

(2,300)  $ 
—    

(11,800)
(450)

Total ........................................................................................................ $ 

(1,400) $ 

(2,300)  $ 

(12,250)

Liquidity and Capital Resources  
Overview  

Based on our 2013 financial results and current expectations, we believe our cash and cash equivalents, and cash generated from 

operations, will satisfy our working capital needs, capital expenditures, investment requirements, contractual obligations, 
commitments, future customer financings, and other liquidity requirements associated with our operations through at least the next 
twelve months. We plan for and measure our liquidity and capital resources through an annual budgeting process. At December 31, 
2013, our cash and cash equivalents totaled $27.5 million and we held no debt.  

For the year ended December 31, 2013, we achieved an 11% growth in revenue, 84% gross margin and strong cash collections. 

We expect this trend to continue in the foreseeable future, and believe a significant portion of our spending is discretionary and 
flexible and that we have the ability to adjust overall cash spending to react, as needed, to any shortfalls in projected cash.  

Sources and Uses of Cash  

(In thousands) 
Net cash provided by operations ........................................................... $ 
Net cash used in investing activities ..................................................... $ 
Net cash used in financing activities ..................................................... $ 

Years Ended December 31,  

2013  

2012  

2011  

13,298  $ 
(1,593) $ 
(7,175) $ 

12,533   $ 
(1,533)  $ 
(8,692)  $ 

13,219 
(1,471)
(15,687)

Our primary source of liquidity from operations was the collection of revenue in advance from our customers, accounts 

receivable from our customers, and the management of the timing of payments to our vendors and service providers.  

Cash used in our investing activities in 2013 related to purchases of various computing equipment primarily to satisfy customer 

contracts. Approximately 30% of these capital purchases were for computer servers, which are required to deliver our services.  

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Cash used in financing activities in 2013 included $8.8 million used to repurchase our common stock, offset by $1.7 million 

received from the exercise of stock options. Our 2012 cash usage included $9.0 million used to repurchase our common stock offset 
by $300 thousand received from the exercise of stock options and warrants.  

Options of ZixCorp Common Stock  

We have significant options outstanding that are currently vested. There is no assurance that any of these options will be 
exercised; therefore the extent of future cash inflow and related dilution from additional option activity is not certain. The following 
table summarizes the options that were outstanding as of December 31, 2013. The vested options are a subset of the outstanding 
options. The value of the options is the number of options exercisable into shares multiplied by the exercise price for each share.  

Exercise Price Range 

$1.11 - $1.99 .................................................................
$2.00 - $3.49 .................................................................
$3.50 - $4.99 .................................................................
$5.00 - $5.99 .................................................................
$6.00 - $8.99 .................................................................
$9.00 - $11.00................................................................

Outstanding 
Options  

711,697  $ 

1,923,433 
2,578,652 
286,500 
455,300 
792,792 

Total ..............................................................................

6,748,374  $ 

Summary of Outstanding Options  

Total Value of 
Outstanding 
Options 
(In thousands)  

Vested 
Options 
(included in 
outstanding 
options)  

Total Value of 
Vested 
Options 
(In thousands)  

1,082 
5,241 
11,198 
1,432 
2,936 
8,496 

30,385 

711,697  $ 

1,198,070 
2,464,139 
286,500 
455,300 
792,792 

5,908,498  $ 

1,082 
3,252 
10,756 
1,432 
2,936 
8,496 

27,954 

Liquidity Summary  

Based on our current 2013 budget plans, we believe we have adequate resources and liquidity to sustain operations for the next 

twelve months.  

Off-Balance Sheet Arrangements  

None.  

Contractual Obligations and Contingent Liabilities and Commitments  

We have total contractual obligations over the next year of $1.0 million and $3.4 million over the next three years primarily 
consisting of various operating office lease agreements. The term of the lease of our headquarter facility in Dallas was extended to 
2024.  

A summary of our fixed contractual obligations and commitments at December 31, 2013, is as follows:  

Payments Due by Period  

(In thousands) 
Operating leases ........................................................................................ $  11,695  $  1,009  $ 

Total  

1 Year  

2-3 Years  

4-5 Years  

2,424  $ 

2,072  $ 

> 5 Years  
6,190 

We have severance agreements with certain employees which would require us to pay approximately $2.8 million if all such 
employees separated from employment with our Company following a change of control, as defined in the severance agreements.  

New Accounting Standards  
Presentation of Other Comprehensive Income  

In February 2013, the Financial Accounting Standards Board (“FASB”) issued guidance that requires entities to provide 
information about the amounts reclassified out of accumulated other comprehensive income by component and to present, either on 
the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other 

23 

 
 
  
 
 
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
 
 
  
  
  
  
 
 
  
  
  
comprehensive income by the respective items of net income. This new guidance did not have an impact on our consolidated financial 
statements.  

Unrecognized Tax Benefit  

In July 2013, the FASB issued guidance that requires entities to present unrecognized tax benefits (UTB) in the financial 
statements as a reduction to a deferred tax asset (DTA) for a net operating loss (NOL) carryforward when NOL’s exist. Entities whose 
NOL carryforwards are not available to settle taxes that would result from the disallowance of the tax position, or who do not intend to 
use their DTA for that purpose, should present their UTB as a liability and should not net the UTB with the DTA. The guidance 
becomes effective for us fiscal year 2014. We do not anticipate that this new guidance will have an impact on our consolidated 
financial statements.  

Item 7A. Quantitative and Qualitative Disclosures About Market Risk  

We do not believe that we face exposure to material market risk with respect to our cash, cash equivalents and restricted cash 

investments, which totaled $27.5 million and $23.0 million at December 31, 2013 and 2012, respectively. We held no marketable 
securities as of December 31, 2013 and 2012.  

Item 8. Financial Statements and Supplementary Data  

The information required by this Item 8 begins on page F-1 of this Annual Report.  

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure  

None.  

Item 9A. Controls and Procedures  
Effectiveness of Disclosure Controls and Procedure  

In accordance with Rule 13a-15(b) of the Exchange Act, as of the end of the period covered by this Annual Report on Form 10-
K, management evaluated, with the participation of our principal executive officer and principal accounting officer, the effectiveness 
of the design and operation of the Company’s disclosure controls and procedures (as defined in Rule 13a-15(e) under the Exchange 
Act). Based on their evaluation of these disclosure controls and procedures, they have concluded that our disclosure controls and 
procedures were effective as of the date of such evaluation.  

Certifications of our principal executive officer and our principal accounting officer, which are required in accordance with Rule 

13a- 14 of the Exchange Act, are attached as exhibits to this Annual Report. This “Controls and Procedures” section includes the 
information concerning controls evaluation referred to in the certifications, and it should be read in conjunction with the certifications 
for a more complete understanding of the topics presented.  

Management’s Annual Report on Internal Control Over Financial Reporting  

Management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is 
defined in Exchange Act Rule 13a-15(f). Because of its inherent limitations, internal control over financial reporting may not prevent 
or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to risk that controls may 
become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.  

Management assessed the effectiveness of our internal control over financial reporting as of December 31, 2013. In making this 

assessment, management used the criteria set forth in 2013 by the Committee of Sponsoring Organizations of the Treadway 
Commission in “Internal Control—Integrated Framework”. Based on this assessment, our management concluded that, as of 
December 31, 2013, our internal control over financial reporting was effective based on those criteria.  

The effectiveness of our internal control over financial reporting as of December 31, 2013, has been audited by Whitley Penn 

LLP, an independent registered public accounting firm, as stated in their report which is included herein.  

24 

 
 
  
Changes in Internal Controls over Financial Reporting  

During the three months ended December 31, 2013, there have been no changes in our internal control over financial reporting 
identified in connection with the evaluation described above that have materially affected or are reasonably likely to materially affect 
internal control over financial reporting.  

25 

 
 
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM  

To the Board of Directors and Stockholders of  
Zix Corporation  

We have audited Zix Corporation and subsidiaries’ (the “Company”) internal control over financial reporting as of December 31, 2013 
based on criteria established in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations 
of the Treadway Commission (COSO). The Company’s management is responsible for maintaining effective internal control over 
financial reporting and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying 
Management’s Annual Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the 
Company’s internal control over financial reporting based on our audit.  

We conducted our audit 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 effective internal control over 
financial reporting was maintained in all material respects. Our audit of internal control over financial reporting included obtaining an 
understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating 
the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other 
procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.  

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of 
financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting 
principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the 
maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the 
company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in 
accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in 
accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding 
prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect 
on the financial statements.  

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections 
of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in 
conditions, or that the degree of compliance with the policies or procedures may deteriorate.  

In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 
2013, based on criteria established in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring 
Organizations of the Treadway Commission.  

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the 
consolidated balance sheets of the Company as of December 31, 2013 and 2012, and the related consolidated statements of income, 
stockholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2013, and our report dated 
March 12, 2014, expressed an unqualified opinion on those consolidated financial statements.  

/s/ WHITLEY PENN LLP  

Dallas, Texas  
March 12, 2014  

26 

 
 
Item 9B. Other Information  

None.  

27 

 
 
  
  
Item 10. Directors, Executive Officers and Corporate Governance  

PART III  

Certain information required by this Item 10 is incorporated by reference from our Proxy Statement related to the 2014 Annual 

Meeting of Stockholders under the sections “OTHER INFORMATION YOU NEED TO MAKE AN INFORMED DECISION — 
Directors, Executive Officers and Significant Employees” and “Section 16(a) Beneficial Ownership Reporting Compliance,” and 
“CORPORATE GOVERNANCE — Code of Ethics,” and “Nominating and Corporate Governance Committee, Selection of Director 
Nominees,” and “Audit Committee.”  

The board of directors has adopted a Code of Conduct and Code of Ethics that applies to all directors, officers and employees of 

the Company. A copy of this document is available on our website at www.zixcorp.com under “Corporate Governance.” Any waiver 
or amendment of the Code of Ethics with respect to our chief executive officer and senior financial officers will be publicly disclosed 
as required by applicable law and regulation, including by posting the waiver on our website.  

Item 11. Executive Compensation  

The information required by this Item 11, including certain information pertaining to Company securities authorized for 
issuance under equity compensation plans, is incorporated by reference from our Proxy Statement related to the 2014 Annual Meeting 
of Stockholders under the section “COMPENSATION OF DIRECTORS AND EXECUTIVE OFFICERS.”  

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters  

The information required by this Item 12 is incorporated by reference from our Proxy Statement related to the 2014 Annual 

Meeting of Stockholders under the section “SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND 
MANAGEMENT” and “COMPENSATION OF DIRECTORS AND EXECUTIVE OFFICERS — Equity Compensation Plan 
Information.”  

Item 13. Certain Relationships and Related Transactions, and Director Independence  

The information required by this Item 13 is incorporated by reference from our Proxy Statement related to the 2014 Annual 

Meeting of Stockholders under the section “COMPENSATION OF DIRECTORS AND EXECUTIVE OFFICERS — Certain 
Relationships and Related Transactions” and “CORPORATE GOVERNANCE — Corporate Governance Requirements and Board 
Member Independence.”  

Item 14. Principal Accountant Fees and Services  

The information required by this Item 14 is incorporated by reference from our Proxy Statement related to the 2014 Annual 

Meeting of Stockholders under the section “INDEPENDENT REGISTERED PUBLIC ACCOUNTANTS.”  

PART IV  

Item 15. Exhibits and Financial Statement Schedules  

(a)(1) Financial Statements  

See Index to Consolidated Financial Statements on page F-1 hereof.  
(a)(2) Financial Statement Schedules  

All schedules for which provision is made in the applicable accounting regulations of the SEC have been omitted because of the 

absence of the conditions under which they are required or because the information required is included in the consolidated financial 
statements or notes thereto.  

28 

 
 
  
(a)(3) Exhibits  

Exhibit 
Number 

Description 

3.1 

—  Restated Articles of Incorporation of Zix Corporation, as filed with the Texas Secretary of State on November 10, 

2005. Filed as Exhibit 3.1 to Zix Corporation’s Annual Report on Form 10-K for the year ended December 31, 2005, 
and incorporated herein by reference. 

3.2*  —  Amended and Restated Bylaws of Zix Corporation, dated March 12, 2014. 

10.1†  —  1995 Long-Term Incentive Plan of Zix Corporation (Amended and Restated as of September 20, 2000). Filed as 

Exhibit 10.3 to Zix Corporation’s Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2000, 
and incorporated herein by reference. 

10.2†  —  Zix Corporation 1999 Directors’ Stock Option Plan (Amended and Restated as of August 1, 2002). Filed as Exhibit 

10.1 to Zix Corporation’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2002, and 
incorporated herein by reference. 

10.3†  —  Zix Corporation 2001 Employee Stock Option Plan (Amended and Restated as of June 7, 2007). Filed as Exhibit 10.6 

to Zix Corporation’s Report on Form 8-K, filed June 12, 2007, and incorporated herein by reference. 

10.4†  —  Zix Corporation’s 2001 Stock Option Plan (Amended and Restated as of June 7, 2007). Filed as Exhibit 10.5 to Zix 

Corporation’s Report on Form 8-K, filed June 12, 2007, and incorporated herein by reference. 

10.5†  —  Zix Corporation’s 2003 New Employee Stock Option Plan (Amended and Restated as of June 7, 2007). Filed as 

Exhibit 10.4 to Zix Corporation’s Report on Form 8-K, filed June 12, 2007, and incorporated herein by reference. 

10.6†  —  Zix Corporation 2004 Stock Option Plan (Amended and Restated as of June 7, 2007). Filed as Exhibit 10.3 to Zix 

Corporation’s Report on Form 8-K, filed June 12, 2007, and incorporated herein by reference. 

10.7†  —  Zix Corporation 2004 Stock Option Plan (Amended and Restated as of May 25, 2005). Filed as Exhibit 10.1 to Zix 

Corporation’s Registration Statement on Form S-8 (Registration No. 333-126576), dated July 13, 2005, and 
incorporated herein by reference. 

10.8†  —  Zix Corporation 2004 Directors’ Stock Option Plan, dated May 6, 2004. Filed as Exhibit 10.2 to Zix Corporation’s 

Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2004, and incorporated herein by reference. 

10.9†  —  Zix Corporation 2006 Directors’ Stock Option Plan (Amended and Restated as of June 7, 2007) Filed as Exhibit 10.1 

to Zix Corporation’s Current Report on Form 8-K, filed June 12, 2007, and incorporated herein by reference. 

10.10†  —  Form of Stock Option Agreement (with no “change in control” provision) for Zix Corporation Stock Option Plans. 

Filed as Exhibit 10.2 to Zix Corporation’s Registration Statement on Form S-8 (Registration No. 333-126576), dated 
July 13, 2005, and incorporated herein by reference. 

10.11†  —  Form of Stock Option Agreement (with “change in control” provision) for Zix Corporation Stock Option Plans. Filed 

as Exhibit 10.3 to Zix Corporation’s Registration Statement on Form S-8 (Registration No. 333-126576), dated July 
13, 2005, and incorporated herein by reference. 

10.12†  —  Form of Stock Option Agreement (with “acceleration event” provision) for Zix Corporation Stock Option Plans and 

applicable to option agreements held by the Company’s chief executive officer and direct reports. Filed as Exhibit 
10.17 to Zix Corporation’s Annual Report on Form 10-K for the year ended December 31, 2007, and incorporated 
herein by reference. 

10.13  —  Zix Corporation 401(k) Retirement Plan. Filed as Exhibit 10.10 to Zix Corporation’s Annual Report on Form 10-K for 

the year ended December 31, 2003, and incorporated herein by reference. 

10.14  —  Adoption Agreement relating to Zix Corporation 401(k) Retirement Plan. Filed as Exhibit 10.11 to Zix Corporation’s 

Annual Report on Form 10-K for the year ended December 31, 2003, and incorporated herein by reference. 

10.15†  —  Form of Zix Corporation Outside Director Stock Option Agreement. Filed as Exhibit 10.3 to Zix Corporation’s 

Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2004, and incorporated herein by reference. 

10.16†  —  Form of Zix Corporation Outside Director Stock Option Agreement. Filed as Exhibit 10.1 to Zix Corporation’s 

Quarterly Report on Form 10-Q for the period ended June 30, 2010, and incorporated herein by reference. 

29 

 
 
  
 
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Exhibit 
Number 

Description 

10.17†  —  Form of Zix Corporation Employee Stock Option Agreement. Filed as Exhibit 10.2 to Zix Corporation’s Quarterly 

Report on Form 10-Q for the period ended June 30, 2010, and incorporated herein by reference. 

10.18†  —  Form of Director Indemnification Agreement. Filed as Exhibit 10.1 to Zix Corporation’s Current Report on Form 8-K 

dated December 20, 2010, and incorporated herein by reference. 

10.19†  —  Form of Executive Termination Benefits Agreement. Filed as Exhibit 10.1 to Zix Corporation’s Quarterly Report on 

Form 10-Q for the period ended June 30, 2011, and incorporated herein by reference. 

10.20†  —  Zix Corporation 2012 Incentive Plan. Filed as Appendix A of Schedule 14A on April 27, 2012, and incorporated 

herein by reference. 

10.21†  —  Form of Executive Termination Benefits Agreement. Filed as Exhibit 10.1 to Zix Corporation’s Quarterly Report on 

Form 10-Q for the period ended September 30, 2012, and incorporated herein by reference. 

10.22  —  Shareholder’s Agreement dated December 28, 2012, among Zix Corporation, and Rockall Emerging Markets Master 
Fund Limited, Meldrum Asset Management, LLC, Fulvio Dobrich, Con Egan, Conor O’Driscoll, Michael E. Dailey, 
and Mark J. Bonney. Filed as Exhibit 10.1 to Zix Corporation’s Current Report on Form 8-K dated December 31, 
2012, and incorporated herein by reference. 

21.1  —  Subsidiaries of Zix Corporation. Filed as Exhibit 21.1 to Zix Corporation’s Annual Report on Form 10-K dated 

December 31, 2009, and incorporated herein by reference. 

23.1*  —  Consent of Independent Registered Public Accounting Firm (Whitley Penn LLP). 

31.1*  —  Certification of Richard D. Spurr, President and Chief Executive Officer of the Company, pursuant to Section 302 of 

the Sarbanes-Oxley Act of 2002. 

31.2*  —  Certification of Michael W. English, Chief Financial Officer (Principal Financial Officer and Principal Accounting 

Officer) of the Company, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. 

32.1**  —  Certification of Richard D. Spurr and Michael W. English, pursuant to 18 U.S.C. Section 1350, as adopted, pursuant 

to Section 906 of the Sarbanes-Oxley Act of 2002. 

101.1*  —  101. INS (XBRL Instance Document) 

101. SCH (XBRL Taxonomy Extension Schema Document) 

101. CAL (XBRL Calculation Linkbase Document) 

101. LAB (XBRL Taxonomy Label Linkbase Document) 

101. DEF (XBRL Taxonomy Linkbase Document) 

101. PRE (XBRL Taxonomy Presentation Linkbase Document) 

Filed herewith.  
Furnished herewith.  

* 
** 
†  Management contract or compensatory plan or arrangement.  

30 

 
 
 
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
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, in the city of Dallas, state of Texas, on March 12, 
2014.  

SIGNATURES  

ZIX CORPORATION 

By:  /s/ MICHAEL W. ENGLISH 

Michael W. English 
Chief Financial Officer (Principal Financial 
Officer and Principal Accounting Officer) 

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 indicated on March 12, 2014.  

Signature 

Title 

/s/ RICHARD D. SPURR 

(Richard D. Spurr) 

/s/ MICHAEL W. ENGLISH 

(Michael W. English) 

/s/ MARK J. BONNEY 

(Mark J. Bonney) 

/s/ MICHAEL E. DAILEY 

(Michael E. Dailey) 

/s/ TAHER A. ELGAMAL 

(Taher A. Elgamal) 

/s/ ROBERT C. HAUSMANN 

(Robert C. Hausmann) 

/s/ MARIBESS L. MILLER 

(Maribess L. Miller) 

/s/ ANTONIO R. SANCHEZ III 

(Antonio R. Sanchez III) 

Chairman, Chief Executive Officer, President and Director 

(Principal Executive Officer) 

Chief Financial Officer 

(Principal Financial Officer and Principal Accounting 
Officer) 

Director 

Director 

Director 

Director 

Director 

Director 

` 

31 

 
 
  
 
 
  
 
  
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
  
INDEX TO CONSOLIDATED FINANCIAL STATEMENTS  

Report of Independent Registered Public Accounting Firm ............................................................................................................
Consolidated Balance Sheets at December 31, 2013 and 2012 .......................................................................................................
Consolidated Statements of Income for the years ended December 31, 2013, 2012 and 2011 ........................................................
Consolidated Statements of Stockholders’ Equity for the years ended December 31, 2013, 2012 and 2011 ..................................
Consolidated Statements of Cash Flows for the years ended December 31, 2013, 2011 and 2011 .................................................
Notes to Consolidated Financial Statements ....................................................................................................................................

  F-2 
  F-3 
  F-4 
  F-5 
  F-6 
  F-7 

 
 
 
  
 
  
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM  

To the Board of Directors and Stockholders of  
Zix Corporation  

We have audited the accompanying consolidated balance sheets of Zix Corporation and subsidiaries ( the “Company”), as of 
December 31, 2013 and 2012, and the related consolidated statements of income, stockholders’ equity, and cash flows for each of the 
years in the three-year period ended December 31, 2013. The Company’s management is responsible for these financial statements. 
Our responsibility is to express an opinion on these financial statements 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. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial 
statements. An audit also includes 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, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of 
the Company, as of December 31, 2013 and 2012, and the results of their operations and their cash flows for each of the years in the 
three-year period ended December 31, 2013 in conformity with accounting principles generally accepted in the United States of 
America.  

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the 
Company’s internal control over financial reporting as of December 31, 2013, based on criteria established in Internal Control—
Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission, and our report 
dated March 12, 2014 expressed an unqualified opinion.  

/s/ WHITLEY PENN LLP  

Dallas, Texas  
March 12, 2014  

F-2 

 
  
ZIX CORPORATION  
CONSOLIDATED BALANCE SHEETS  

(In thousands, except share and par value data) 

Current assets: 

ASSETS

December 31,  

2013  

2012  

Cash and cash equivalents ................................................................................................................... $ 
Receivables, net ...................................................................................................................................
Prepaid and other current assets ..........................................................................................................
Deferred tax assets...............................................................................................................................

27,518  $ 
2,324 
2,038 
1,814 

Total current assets ....................................................................................................................
Property and equipment, net .........................................................................................................................
Goodwill .......................................................................................................................................................
Deferred tax assets ........................................................................................................................................

33,694 
2,608 
2,161 
52,239 

22,988 
967 
1,697 
1,600 

27,252 
2,384 
2,161 
51,052 

Total assets ................................................................................................................................. $ 

90,702  $ 

82,849 

Current liabilities: 

LIABILITIES AND STOCKHOLDERS’ EQUITY

Accounts payable ................................................................................................................................ $ 
Accrued expenses ................................................................................................................................
Deferred revenue .................................................................................................................................

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

Long-term liabilities: 

Deferred revenue .................................................................................................................................
Deferred rent .......................................................................................................................................

Total long-term liabilities ..........................................................................................................

495  $ 

1,992 
19,080 

21,567 

1,278 
1,623 

2,901 

501 
2,655 
17,470 

20,626 

902 
76 

978 

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

24,468 

21,604 

Commitments and contingencies (Note 13) 
Stockholders’ equity: 

Preferred stock, $1 par value, 10,000,000 shares authorized; none issued and outstanding ................
Common stock, $0.01 par value, 175,000,000 shares authorized; 74,417,946 issued and 

60,513,287 outstanding in 2013 and 73,165,433 issued and 61,264,533 outstanding in 2012 .......
Additional paid-in capital ....................................................................................................................
Treasury stock, at cost; 13,904,659 common shares in 2013 and 11,900,900 common shares in 

2012 ................................................................................................................................................
Accumulated deficit ............................................................................................................................

—   

—   

737 
359,154 

728 
355,747 

(50,386)
(243,271)

(41,506)
(253,724)

Total stockholders’ equity ..........................................................................................................

66,234 

61,245 

Total liabilities and stockholders’ equity ................................................................................... $ 

90,702  $ 

82,849 

See notes to consolidated financial statements.  

F-3 

 
  
 
 
  
  
  
  
 
 
 
 
 
 
  
  
  
 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
  
 
 
 
 
  
  
  
 
 
  
 
 
 
 
  
  
  
 
 
  
  
  
 
 
  
  
  
  
  
 
 
 
 
 
 
 
 
 
 
  
  
 
 
  
  
  
  
  
ZIX CORPORATION  
CONSOLIDATED STATEMENTS OF INCOME  

Year Ended December 31,  

2013  

2012  

2011  

(In thousands, except share and per share data) 
Revenues ................................................................................................................... $ 
Cost of revenues ..............................................................................................

Gross margin .............................................................................................................
Research and development expenses ...............................................................
Selling, general and administrative expenses ..................................................

Operating income ......................................................................................................
Other income (expense): 

Investment and other income ...........................................................................
Interest expense ...............................................................................................

Total other income .................................................................................

Income before income taxes .....................................................................................
Income tax benefit ....................................................................................................

48,138  $ 
7,614 

43,356  $ 
7,609 

40,524 
9,563 
21,646 

9,315 

132 
—   

132 

9,447 
1,006 

35,747 
7,419 
19,385 

8,943 

112 
(1)

111 

9,054 
1,949 

Net income ................................................................................................................ $ 

10,453  $ 

11,003  $ 

Basic income per common share .............................................................................. $ 

Diluted income per common share ........................................................................... $ 

0.17  $ 

0.17  $ 

0.18  $ 

0.17  $ 

38,145 
7,211 

30,934 
5,229 
15,128 

10,577 

95 
(7)

88 

10,665 
11,889 

22,554 

0.34 

0.34 

Weighted average shares outstanding 
Basic common shares outstanding ............................................................................

61,139,035 

62,211,228 

65,439,078 

Diluted common shares outstanding .........................................................................

62,526,507 

62,875,347 

67,261,514 

See notes to consolidated financial statements.  

F-4 

 
  
 
 
  
  
  
 
 
 
  
  
  
  
 
 
 
 
 
 
 
 
 
  
  
  
  
 
 
 
  
 
 
 
 
 
 
  
  
  
  
 
 
 
  
  
  
  
 
 
 
 
 
 
  
  
  
  
  
  
  
  
  
  
  
  
  
 
 
 
  
  
 
 
 
  
  
  
ZIX CORPORATION  
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY  

(In thousands, except share data) 
Balance, December 31, 2010 ..........................
Issuance of common stock upon exercise of 

stock options ..............................................

Issuance of common stock upon exercise of 

warrants ......................................................
Employee stock-based compensation costs ....
Non-employee stock-based compensation ......
Stock option exercise excess tax benefit .........
Treasury repurchase program..........................
Net income ......................................................

Balance, December 31, 2011 ..........................
Issuance of common stock upon exercise of 

stock options ..............................................
Issuance of restricted common stock ..............
Employee stock-based compensation costs ....
Non-employee stock-based compensation ......
Treasury repurchase program..........................
Net income ......................................................

Balance, December 31, 2012 ..........................
Issuance of common stock upon exercise of 

stock options ..............................................

Issuance of common stock upon vesting of 

restricted stock units ...................................
Issuance of restricted common stock ..............
Employee stock-based compensation costs ....
Treasury repurchase program..........................
Net income ......................................................

Stockholders’ Equity  

Common Stock  

Shares  

Amount  

Additional 
Paid-In 
Capital  

Treasury 
Stock  

Accumulated
Deficit  

Total 
Stockholders’ 
Equity  

  69,505,919  $ 

695  $  344,981  $ 

(11,507)  $ 

(287,282)

46,887 

725,936 

7 

1,784 

—    

—   

1,791 

2,407,610 
—   
—   
—   
—   
—   

  72,639,465 

174,968 
351,000 
—   
—   
—   
—   

  73,165,433 

24 
—   
—   
—   
—   
—   

726 

2 
—   
—   
—   
—   
—   

728 

3,683 
569 
48 
3,200 
—   
—   

—    
—    
—    
—    
(20,999)   
—    

—   
—   
—   
—   
—   
22,554 

354,265 

(32,506)   

(264,728)

306 
—   
1,166 
10 
—   
—   

—    
—    
—    
—    
(9,000)   
—    

—   
—   
—   
—   
—   
11,003 

355,747 

(41,506)   

(253,724)

3,707 
569 
48 
3,200 
(20,999)
22,554 

57,757 

308 
—   
1,166 
10 
(9,000)
11,003 

61,245 

839,263 

9 

1,696 

—    

—   

1,705 

28,250 
385,000 
—   
—   
—   

—   
—   
—   
—   
—   

—   
—   
1,711 
—   
—   

—    
—    
(120)   
(8,760)   
—    

—   
—   
—   
—   
10,453 

—   
—   
1,591 
(8,760)
10,453 

66,234 

Balance, December 31, 2013 ..........................

  74,417,946  $ 

737  $  359,154  $ 

(50,386)  $ 

(243,271) $ 

See notes to consolidated financial statements.  

F-5 

 
  
 
 
 
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
ZIX CORPORATION  
CONSOLIDATED STATEMENTS OF CASH FLOWS  

(In thousands) 
Operating activities: 

Year Ended December 31,  

2013  

2012  

2011  

Net income .......................................................................................................................... $  10,453   $  11,003  $ 
Non-cash items in net income: ............................................................................................
Depreciation and amortization ...................................................................................
Employee stock-based compensation expense ...........................................................
Non-employee stock-based compensation .................................................................
Changes in deferred taxes ..........................................................................................

1,466  
1,711  
—    
(1,401)

1,343 
1,166 
10 
(2,295)

Changes in operating assets and liabilities: 

Receivables ................................................................................................................
Prepaid and other assets .............................................................................................
Accounts payable .......................................................................................................
Deferred revenue ........................................................................................................
Accrued and other liabilities ......................................................................................

(1,357)
(341)
(103)
1,986  
884  

(263)
(275)
140 
1,009 
695 

22,554 

1,373 
569 
48 
(11,796)

640 
(264)
(87)
593 
(411)

Net cash provided by operating activities .........................................................

13,298  

12,533 

13,219 

Investing activities: 

Purchases of property and equipment ..................................................................................

Net cash used in investing activities .................................................................

Financing activities: 

Proceeds from exercise of stock options .............................................................................
Proceeds from exercise of warrants .....................................................................................
Payment of license subscription note payable .....................................................................
Treasury stock .....................................................................................................................

Net cash used in financing activities ................................................................

Increase (decrease) in cash and cash equivalents ..........................................................................
Cash and cash equivalents, beginning of year ..............................................................................

(1,593)

(1,593)

1,705  
—    
—    
(8,880)

(7,175)

4,530  
22,988  

(1,533)

(1,533)

308 
—   
—   
(9,000)

(8,692)

2,308 
20,680 

(1,471)

(1,471)

1,791 
3,707 
(186)
(20,999)

(15,687)

(3,939)
24,619 

Cash and cash equivalents, end of year ......................................................................................... $  27,518   $  22,988  $ 

20,680 

See notes to consolidated financial statements.  

F-6 

 
  
 
 
  
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
 
 
 
  
 
 
 
  
  
  
  
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
 
 
  
  
 
 
 
 
 
 
  
  
  
  
  
  
  
  
  
ZIX CORPORATION  
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS  

1. Company Overview  

Zix Corporation (“ZixCorp,” the “Company,” “we,” “our,” “us”) provides email encryption, data loss prevention (“DLP”) and 

Bring-Your-Own-Device (“BYOD”) solutions to meet the data protection and compliance needs of organizations primarily in the 
healthcare, financial services, insurance and government sectors.  

2. Summary of Significant Accounting Policies  

Basis of Presentation — The accompanying consolidated financial statements include the accounts of all our wholly-owned 

subsidiaries and are prepared in accordance with accounting principles generally accepted in the United States of America. All inter-
company accounts and transactions have been eliminated in consolidation.  

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 amount of 
assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the 
reported amounts of revenue and expenses during the reported period. Our significant estimates include primarily those required in the 
valuation or impairment analysis of goodwill and property and equipment, revenue recognition, allowances for doubtful accounts, 
stock-based compensation, litigation accruals, valuation allowances for deferred tax assets and tax accruals. Although we believe that 
adequate accruals have been made for unsettled issues, additional gains or losses could occur in future years from resolutions of 
outstanding matters. Actual results could differ materially from original estimates.  

Cash Equivalents — Cash investments with maturities of three months or less when purchased are considered cash equivalents.  

Fair Value of Financial Instruments —The Company does not measure the fair value of any financial instrument other than cash 

equivalents, options, restricted stock, restricted stock units, and warrants. The carrying values of other financial instruments 
(receivables and accounts payable) are not recorded at fair value but approximate fair values primarily due to their short-term 
nature. The carrying values of other current assets and accrued expenses are also not recorded at fair value, but approximate fair 
values primarily due to their short-term nature. 

Valuation of Property and Equipment — The accounting policies and estimates relating to property and equipment are 

considered significant because of the potential impact that impairment, obsolescence, or change in an asset’s useful life could have on 
the Company’s operating results.  

We record an impairment charge on the assets to be held and used when we determine based upon certain triggering events that 
the carrying value of property and equipment may not be recoverable based on expected undiscounted cash flows attributable to such 
assets. The amount of a potential impairment is determined by comparing the carrying amount of the asset to either the value 
determined from a projected discounted cash flow method, using a discount rate that is considered to be commensurate with the risk 
inherent in the Company’s current business model or the estimated fair market value. Assumptions are made with respect to future net 
cash flows expected to be generated by the related asset. An impairment charge would be recorded for an amount by which the 
carrying value of the asset exceeded the discounted projected net cash flows or estimated fair market value. Also, even where a current 
impairment charge is not necessary, the remaining useful lives are evaluated. No impairment was recorded for any of the periods 
presented.  

Property and equipment are recorded at cost and depreciated or amortized using the straight-line method over their estimated 
useful lives as follows: computer and office equipment and software — three years; leasehold improvements — the shorter of five 
years or the lease term; and furniture and fixtures — five years.  

Goodwill — We account for the valuation of goodwill and other intangible assets after classifying intangible assets into three 

categories: (1) intangible assets with finite lives subject to amortization; (2) intangible assets with indefinite lives not subject to 
amortization; and (3) goodwill. For intangible assets with finite lives, tests for impairment must be performed if conditions exist that 
indicate the carrying value may not be recoverable. For intangible assets with indefinite lives and goodwill, tests for impairment must 
be performed at least annually or more frequently if events or circumstances indicate that assets might be impaired.  

Goodwill was $2.2 million, or 2% and 3% of total assets for the years ended December 31, 2013 and 2012, respectively.  

F-7 

 
  
Our goodwill is not being amortized, but we do evaluate the goodwill for impairment annually in the fourth quarter, or when 

there is reason to believe that the value has been diminished or impaired. Evaluations for possible impairment are based upon a 
comparison of the estimated fair value of the reporting unit to which the goodwill has been assigned, versus the sum of the carrying 
value of the assets and liabilities of that unit including the assigned goodwill value. The fair values used in this evaluation are 
estimated based on the Company’s market capitalization, which is based on the outstanding stock and market price of the stock. 
Impairment is deemed to exist if the net book value of the unit exceeds its estimated fair value. No impairment was recorded for any 
of the periods presented.  

Deferred Tax Assets — Deferred tax assets are recognized if it is “more likely than not” that the benefit of the deferred tax asset 

will be realized on future federal or state income tax returns. At December 31, 2013, we provided a valuation allowance against a 
significant portion, $46.2 million, of our accumulated U.S. deferred tax assets, reflecting our historical losses and the uncertainty of 
future taxable income sufficient to utilize net operating loss carryforwards prior to their expiration. Our total deferred tax asset not 
subject to a valuation allowance is valued at $54.1 million, and consists of $45.3 million for federal net operating loss carryforwards, 
$5.7 million relating to temporary timing differences between GAAP and tax-related expense, $2.0 million relating to U.S. state 
income tax credits and $1.1 million related to Alternative Minimum Tax credits. If U.S. taxable income increases from its current level 
in a future period or if the facts and circumstances on which our estimates and assumptions are based were to change, thereby 
impacting the likelihood of realizing the deferred tax assets, judgment would have to be applied in determining the amount of 
valuation allowance no longer required. Reversal of all or a part of this valuation allowance could have a significant positive impact 
on operating results in the period that it becomes more likely than not that certain of the Company’s deferred tax assets will be 
realized. Alternatively, should our future income decrease from current levels, a resulting increase to all or a part of this valuation 
allowance could also have a significant negative impact on our operating results.  

Leases — A leased asset whose lease terms meet the criteria for capitalization is recorded as an asset and depreciated. If a lease 
does not meet the criteria for capitalization, it is classified as an operating lease and payments are recorded as rent expense. For 2013 
and 2012 we had no leases that qualified as capital leases. Lease renewal options which we are “reasonably assured” of using and the 
related payments are taken into account when initially classifying and recording the lease as a capital lease obligation or as straight-
line rent if an operating lease. Funds provided by the lessor for leasehold improvements are recorded as a deferred lease incentive and 
amortized as a reduction of rent expense over the lease term.  

Revenue Recognition — We develop, market, and support applications that connect, protect and deliver information in a secure 

manner. Our services can be placed into several key revenue categories where each category has similar revenue recognition traits: 
Email Encryption, DLP, and BYOD email subscription-based services, various transaction fees and related professional services. The 
majority of the revenues generated are through a combination of direct sales and a network of resellers and other distribution partners.  

Under all product categories and distribution models, we recognize revenue after all of the following occur:  

• 

• 

• 

• 

persuasive evidence of an arrangement exists,  
delivery has occurred or services have been rendered,  
the price is fixed and determinable, and  
collectability is reasonably assured.  

Discounts provided to customers are recorded as reductions in revenue.  

Our Email Encryption, DLP and BYOD services are subscription services. Providing these services includes delivering 
subscribed-for software and providing secure electronic communications and customer support throughout the subscription period. 
Our subscribers generally execute multiple-year contracts that are irrevocable and non-refundable in nature and require annual, up-
front payments. Subscription fees received from customers are initially recorded as deferred revenue and then recognized as revenue 
ratably over the subscription period. We do not offer stand alone services. Further, our services primarily include manufacturer 
provided warranty provisions. We recorded no warranty expense in any of the presented periods.  

Software Development Costs — Costs incurred in the development and testing of software used in the Company’s Email 

Encryption, DLP, and BYOD email services related to research, project planning, training, maintenance and general and 
administrative activities, and overhead costs are expensed as incurred. The costs of relatively minor upgrades and enhancements to the 
software are also expensed as incurred.  

Costs for the development of new software solutions and substantial enhancements to existing software solutions are expensed 
as incurred until technological feasibility has been established, at which time any additional costs would be capitalized. No research 
and development costs have been capitalized because we believe that technological feasibility is established concurrent with general 
release to customers.  

F-8 

 
  
Advertising Expense — Advertising costs are expensed as incurred. Our continuing operations include advertising expense of 

$959 thousand, $538 thousand, and $544 thousand in 2013, 2012, and 2011, respectively.  

Stock-Based Compensation — We currently use the straight-line amortization method for recognizing stock option and 
restricted stock compensation costs. The measurement and recognition of compensation expense for all share-based payment awards 
made to our employees, directors or outside service providers are based on the estimated fair value of the awards on the grant dates. 
The grant date fair value is estimated using either an option-pricing model which is consistent with the terms of the award or a market 
observed price, if such a price exists. Such cost is recognized over the period during which an employee, director or outside service 
provider is required to provide service in exchange for the award, i.e., “the requisite service period” (which is usually the vesting 
period). We also estimate the number of instruments that will ultimately be earned, rather than accounting for forfeitures as they 
occur.  

Earnings Per Share (“EPS”) — Basic EPS is based on the weighted average number of common shares outstanding during 
each period. Diluted EPS adjusts Basic EPS for the effects of dilutive common stock equivalents outstanding during each period using 
the treasury stock method.  

New Accounting Standards  
Presentation of Other Comprehensive Income  

In February 2013, the FASB issued guidance that requires entities to provide information about the amounts reclassified out of 

accumulated other comprehensive income by component and to present, either on the face of the statement where net income is 
presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective items of 
net income. This new guidance did not have an impact on our consolidated financial statements.  

Unrecognized Tax Benefit  

In July 2013, the FASB issued guidance that requires entities to present unrecognized tax benefits (UTB) in the financial 
statements as a reduction to a deferred tax asset (DTA) for a net operating loss (NOL) carryforward when NOL’s exist. Entities whose 
NOL carryforwards are not available to settle taxes that would result from the disallowance of the tax position, or who do not intend to 
use their DTA for that purpose, should present their UTB as a liability and should not net the UTB with the DTA. The guidance 
becomes effective for us fiscal year 2014. We do not anticipate that this new guidance will have an impact on our consolidated 
financial statements.  

3. Stock Options and Stock-based Employee Compensation  

Below is a summary of common stock options outstanding at December 31, 2013:  

Employee and Director Stock Option Plans: 
1995 Long-term Incentive Plan .............................................
1999 Director’s Stock Option Plan ........................................
2001 Stock Option Plan .........................................................
2001 Employee Stock Option Plan ........................................
2003 New Employee Stock Option Plan ...............................
2004 Stock Option Plan .........................................................
2004 Director’s Stock Option Plan ........................................
2006 Director’s Stock Option Plan ........................................
2012 Incentive Plan ...............................................................

Total employee and director stock option  

plans ..............................................................

Executive Stock Option Agreements: 

Authorized 
Shares  

Options 
Outstanding  

Options 
Vested  

1,825,000 
975,000 
2,525,000 
300,000 
500,000 
5,000,000 
300,000 
1,100,000 
2,700,000 

680,000  
83,292  
515,796  
77,931  
16,400  
3,254,404  
160,000  
586,676  
723,875  

680,000 
83,292 
515,796 
77,931 
14,399 
2,937,718 
160,000 
586,676 
202,686 

Available 
for 
Grant  

—   
—   
—   
—   
—   
—   
—   
—   
523,160 

15,225,000 

6,098,374  

5,258,498 

523,160 

Richard D. Spurr, Chairman, President and CEO ........

650,000 

650,000  

650,000 

—   

Total ......................................................................................

15,875,000 

6,748,374  

5,908,498 

523,160 

Under all of our stock option plans, new shares are issued when options are exercised.  

F-9 

 
  
  
 
 
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
 
 
 
 
  
 
 
 
 
  
  
  
  
  
 
 
 
 
  
  
Employee and Director Stock Option Plans  

We have non-qualified stock options outstanding to employees and directors under various stock option plans. The plans require 

the exercise price of options granted under these plans to equal or exceed the fair market value of the Company’s common stock on 
the date of grant. The options, subject to termination of employment, generally expire ten years from the date of grant. Historically, 
our employee options typically vested pro-rata and quarterly over three years. Option grants to employees, officers and directors 
frequently contain accelerated vesting provisions upon the occurrence of a change of control, as defined in the applicable option 
agreements.  

Under the terms of the 2012 Incentive Plan adopted by the Company’s Board of Directors on April 13, 2012 (the “2012 Plan”), 

2,700,000 shares are available for issuance, plus a number of additional shares (not to exceed 1,327,000) underlying options 
outstanding under certain of the Company’s prior equity plans that thereafter terminate or expire unexercised, or are cancelled, 
forfeited, or lapse for any reason. Awards issued under the 2012 Plan typically vest pro-rata and quarterly over four years.  

Executive Stock Option Agreements:  

Richard D. Spurr — In January 2004, Mr. Richard D. Spurr was appointed president and chief operating officer of the 
Company. Mr. Spurr received non-shareholder approved options to acquire 650,000 shares of ZixCorp common stock at an exercise 
price of $10.80 per share. At December 31, 2013, all 650,000 options were vested and outstanding. These options expired unexercised 
in February 2014. Mr. Spurr was appointed Chief Executive Officer in March 2005, and Chairman of the Board in February 2006.  

Other Stock Option Agreements:  

From time to time we may grant stock options to consultants, contractors and other third parties for services provided to the 

Company. These options are expensed based on their fair values as calculated by using the Black-Scholes Option Pricing Model 
(“BSOPM”). At December 31, 2013, options outstanding to non-employees were 55,000, which were granted from our stock option 
plans.  

Accounting Treatment  

We use the straight-line amortization method for recognizing stock option compensation costs. Our share-based awards include 

stock options, restricted stock and restricted stock units (“RSU’s”).  

For the twelve months ended December 31, 2013, 2012, and 2011, respectively, the total stock-based compensation expense 
resulting from stock options, restricted stock, and RSU’s was recorded to the following line items of our consolidated statement of 
income:  

(In thousands) 
Cost of revenues .............................................................................................. $ 
Research and development expenses ...............................................................
Selling, general and administrative expenses ..................................................

172  $ 
212 
1,327 

136  $ 
142 
888 

Stock-based compensation expense ................................................................. $ 

1,711  $ 

1,166  $ 

71 
68 
430 

569 

Year Ended December 31,  

2013  

2012  

2011  

As of December 31, 2013, there was $3.2 million of total unrecognized stock-based compensation related to non-vested share-

based compensation awards granted under the stock option plans. This cost is expected to be recognized over a weighted average 
period of 1.6 years.  

We used the BSOPM to determine the fair value of option grants made during 2013, 2012, and 2011. On January 1, 2006, we 

elected to use the “simplified” method to calculate the estimated life of options granted to employees. The use of the “simplified” 
method has been extended until such time when we have sufficient information to make more refined estimates on the estimated life 
of our options. The expected stock price volatility was calculated by averaging the historical volatility of the Company’s common 
stock over a term equal to the expected life of the options.  

F-10 

 
  
  
 
 
 
  
  
  
 
 
 
 
 
 
  
  
  
  
  
  
  
  
The following weighted average assumptions were applied in determining the fair value of options granted during the respective 

periods:  

Year Ended December 31,  

Risk-free interest rate ...........................................................................
Expected option life (years) .................................................................
Expected stock price volatility .............................................................
Expected dividend yield.......................................................................
Fair value of options granted ............................................................... $ 

  —    
1.99  

2013  

1.05% 
5.8  
69% 

2012  

0.92% 
6.0  
74% 

2011  

1.81% 
5.8  
75% 

  —    
1.72  
$ 

  —    
2.48  
$ 

The assumptions used in the BSOPM valuation are critical as a change in any given factor could have a material impact on the 

financial results of the Company. The weighted average grant-date fair value of awards of restricted stock and RSU’s is based on 
quoted market price of the Company’s common stock on the date of grant.  

Stock Option Activity  

There were 839,263 stock options exercised for the twelve months ended December 31, 2013. As a result of these stock option 
exercises, there was $427 thousand in excess tax benefits recorded in 2013. For the comparative period in 2012, there were 174,968 
stock option exercises. A deferred tax asset totaling $321 thousand and $306 thousand resulting from stock-based compensation 
expenses was recorded for the twelve months ended December 31, 2013 and 2012, respectively.  

The following is a summary of all stock option transactions for the three years ended December 31, 2013:  

Outstanding at January 1, 2011 ............................................
Granted at market price ..............................................
Cancelled or expired...................................................
Exercised ....................................................................

Outstanding at December 31, 2011 ......................................
Granted at market price ..............................................
Cancelled or expired...................................................
Exercised ....................................................................

Shares  

7,646,892  
536,500  
(310,006) 
(725,936) 

7,147,450  
1,099,000  
(386,706) 
(174,968) 

Outstanding at December 31, 2012 ......................................

7,684,776  

Granted at market price ..............................................
Cancelled or expired...................................................
Exercised ....................................................................

150,000  
(247,139) 
(839,263) 

Outstanding at December 31, 2013 ......................................

6,748,374  

Options exercisable at December 31, 2013 ..........................

5,908,498  

Weighted 
Average 
Exercise 
Price  

Weighted 
Average 
Remaining 
Contractual 
Term (Yrs)  

$ 
$ 
$ 
$ 

$ 
$ 
$ 
$ 

$ 

$ 
$ 
$ 

$ 

$ 

4.42  
3.83  
6.41  
2.46  

4.48  
2.69  
4.69  
1.76  

4.28  

3.27  
5.15  
2.03  

4.50  

4.73  

3.67  

3.10  

At December 31, 2013, we had 4,110,030 options outstanding and 3,270,154 options exercisable in which the exercise price was 

lower than the market value of the Company’s common stock. The aggregate intrinsic value of these options was $6.6 million and 
$5.2 million, respectively. At December 31, 2012, we had 2,267,052 options outstanding and 1,657,907 options exercisable in which 
the exercise price was lower than the market value of the Company’s common stock. The aggregate intrinsic value of these options 
was $2.0 million and $1.8 million, respectively.  

The total intrinsic value of options exercised during the years ended December 31, 2013 and 2012, was $1.9 million and $135 

thousand, respectively.  

F-11 

 
  
 
 
  
  
  
  
 
 
 
 
 
 
 
 
 
  
 
 
  
 
  
 
  
 
  
 
  
  
  
  
  
 
  
 
  
 
  
 
  
  
  
  
  
 
  
  
  
  
  
 
  
 
  
 
  
  
  
  
  
 
 
  
 
 
  
  
Summarized information about stock options outstanding at December 31, 2013, is as follows:  

Range of 
Exercise Prices 

$1.11 - $1.99 ..........................................................................
$2.00 - $3.49 ..........................................................................
$3.50 - $4.99 ..........................................................................
$5.00 - $5.99 ..........................................................................
$6.00 - $8.99 ..........................................................................
$9.00 - $11.00 ........................................................................

Number 
Outstanding  

711,697 
  1,923,433 
  2,578,652 
286,500 
455,300 
792,792 

  6,748,374 

Options Outstanding  

Options Exercisable  

Weighted 
Average 
Remaining 
Contractual Life  

Weighted 
Average 
Exercise 
Price  

Number 
Exercisable  

Weighted
Average
Exercise
Price  

3.01  $ 
6.61  $ 
3.59  $ 
0.77  $ 
0.76  $ 
0.14  $ 

1.52 
2.72 
4.34 
5.00 
6.45 
10.72 

711,697  $ 
  1,198,070  $ 
  2,464,139  $ 
286,500  $ 
455,300  $ 
792,792  $ 

1.52 
2.71 
4.36 
5.00 
6.45 
10.72 

3.67  $ 

4.50 

  5,908,498  $ 

4.73 

There were 6,412,505 and 7,034,356 exercisable options at December 31, 2012 and 2011, respectively.  

Restricted Stock Activity  
The following is a summary of all restricted stock activity during the two years ended December 31, 2013:  

Outstanding at January 1, 2012 .........................................
Granted at market price ...........................................
Vested ......................................................................
Cancelled .................................................................

Unvested restricted stock at December 31, 2012 ..............

Restricted 
Shares  

—    
351,000  
—    
—    

351,000  

Granted at market price ...........................................

385,000  

Vested ......................................................................

(87,750) 

Cancelled .................................................................

—    

Unvested restricted stock at December 31, 2013 ..............

648,250  

Restricted Stock Unit Activity  
The following is a summary of all RSU activity during the two years ended December 31, 2013:  

Non-vested at January 1, 2012 .........................................
Granted at market price ..........................................
Vested .....................................................................
Cancelled ................................................................

Unvested restricted stock units at December 31, 2012 .....

Granted at market price ..........................................
Vested .....................................................................
Cancelled ................................................................

Restricted 
Stock Units  

—    
113,000  
—    
—    

113,000  

95,000  
(28,250) 
—    

Unvested restricted stock units at December 31, 2013 .....

179,750  

F-12 

Weighted 
Average 
Fair Value  

—    
2.49  
—    
—    

2.49  

3.45  

2.49  

—    

3.06  

Weighted 
Average 
Fair Value  

—    
2.49  
—    
—    

2.49  

3.45  
2.49  
—    

3.00  

$ 

$ 

$ 

$ 

$ 

$ 

$ 

$ 

 
  
 
 
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
 
  
  
  
  
  
  
  
 
  
  
 
 
 
 
 
 
 
  
  
  
 
  
  
 
  
  
  
 
 
  
  
  
 
 
  
  
  
 
  
  
  
  
  
 
  
  
 
 
 
 
 
 
 
  
  
 
  
  
 
 
 
 
 
  
  
  
 
  
  
  
The weighted average grant-date fair value of awards of restricted stock and RSU’s (collectively “restricted stock”) is based on 

the quoted market price of the Company’s common stock on the date of grant.  

Reserved Common Stock  

At December 31, 2013, we held no shares of common stock in reserve for potential future grants in lieu of cash compensation to 

employees.  

4. Supplemental Cash Flow Information  

Supplemental information relating to interest, taxes, and noncash activities:  

Year Ended December 31,  

(In thousands) 
Cash interest paid ................................................................................................ $  —     $  —    $ 

2013  

2012  

Income tax payments .......................................................................................... $ 

217   $ 

350  $ 

Payables related to purchases of capitalized assets ............................................. $ 

(97)  $ 

34  $ 

2011  

7 

225 

79 

Excess tax benefit on exercise of employee stock options.................................. $ 

427   $ 

10  $ 

3,200 

5. Receivables, net  

(In thousands) 
Gross accounts receivables ............................................................................ $ 
Allowance for returns and doubtful accounts ................................................
Unpaid portion of deferred revenue ..............................................................
Note receivable..............................................................................................
Allowance for note receivable .......................................................................

Receivables, net ................................................................................... $ 

December 31,  

2013  

2012  

8,359   $ 
(46)   
(5,989)   
458  
(458)   
2,324   $ 

6,721 
(28)
(5,726)
458 
(458)
967 

Our gross accounts receivables include $863 thousand associated with a tenant improvement allowance received as an incentive 

when we renewed the lease for our Dallas headquarters in 2013.  

The allowance for doubtful accounts includes all specific accounts receivable which we believe are likely not collectable based 

on known information. In addition, we record 2.5% of all accounts receivable greater than 90 days past due, net of those accounts 
specifically reserved, as a general allowance against accounts that could potentially become uncollectible.  

The reduction for deferred revenue represents future customer service or maintenance obligations which have been billed to 
customers, but remain unpaid as of the respective balance sheet dates. Deferred revenue on our consolidated balance sheets represents 
future customer service or maintenance obligations which have been billed and collected as of the respective balance sheet dates.  

The note receivable represents the remaining outstanding balance of an original note related to the sale of a product line in 2005 

in the amount of $540 thousand. This was fully reserved at the time of the sale as the note’s collectability was not assured. The note 
receivable is fully reserved at December 31, 2013.  

6. Prepaid and other current assets  

(In thousands) 
Prepaid insurance, maintenance, software licenses and other ......................... $ 
Deferred commissions .....................................................................................
Deferred rent ...................................................................................................
Tax-related ......................................................................................................

Prepaid and other current assets............................................................. $ 

December 31,  

2013  
1,489   $ 
320  
261  
(32)   
2,038   $ 

2012  
1,502 
215 
—   
(20)
1,697 

F-13 

 
  
 
 
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
 
  
  
  
  
 
 
 
 
 
  
  
  
  
  
  
  
  
 
 
  
  
  
  
 
 
 
 
 
  
  
  
  
  
  
7. Property and Equipment  

(In thousands) 
Computer and office equipment and software ........................................... $ 
`Leasehold improvements .........................................................................
Furniture and fixtures ................................................................................

Less accumulated depreciation and amortization ......................................

December 31,  

2013  

2012  

22,550   $ 
5,276  
1,520  

29,346  
(26,738)   

23,807 
5,221 
1,504 

30,532 
(28,148)

$ 

2,608   $ 

2,384 

Our continuing operations include depreciation and amortization expense related to property and equipment of $1.5 million, 

$1.3 million, and $1.4 million in 2013, 2012, and 2011, respectfully.  

8. Goodwill  

At December 31, 2013 and 2012, we had goodwill totaling $2.2 million. We evaluate goodwill for impairment annually in the 

fourth quarter, or when there is reason to believe that the value has been diminished or impaired. There were no impairment indicators 
to the goodwill recorded as of December 31, 2013.  

9. Accrued Expenses  

(In thousands) 
Employee compensation and benefits .............................................................. $ 
Professional fees...............................................................................................
Taxes ................................................................................................................
Other ................................................................................................................

December 31,  

2013  

2012  

872   $ 
469    
350    
301    

790 
842 
409 
614 

Total accrued expenses .................................................................................... $ 

1,992   $ 

2,655 

10. Fair Value Measurements  

FASB guidance regarding fair value measurement establishes a three-tier fair value hierarchy, which prioritizes the inputs used 
in measuring fair value. These tiers include: Level 1, defined as observable inputs such as quoted prices in active markets for identical 
assets or liabilities; Level 2, defined as inputs other than quoted prices for similar assets and liabilities in active markets that are either 
directly or indirectly observable; and Level 3, defined as unobservable inputs for which little or no market data exists, therefore 
requiring an entity to develop its own assumptions.  

For certain of the Company’s financial instruments, including cash and cash equivalents, trade receivables, and accounts 
payable, the fair values approximate carrying values due to the short-term maturities of these instruments. The carrying values of other 
current assets and accrued expenses are also not recorded at fair value, but approximate fair values primarily due to their short-term 
nature.  

F-14 

 
  
 
 
  
  
  
 
 
 
 
  
  
  
  
 
 
 
  
  
  
  
  
  
  
  
 
 
  
  
  
  
 
 
 
  
  
  
  
  
  
  
11. Earnings Per Share and Potential Dilution  

Basic earnings per share are computed using the weighted average number of common shares outstanding for the period. The 

dilutive effect of potential common shares outstanding is included in diluted earnings per share. The computations for basic and 
diluted earnings per share for the years ended December 31, 2013, 2012, and 2011, are as follows:  

Basic weighted average shares .....................................
Effect of dilutive securities: 
Employee and director stock options ............................
Restricted Stock ............................................................
RSU’s ...........................................................................
Warrants ........................................................................

Year Ended December 31,  

2013  

2012  

2011  

61,139,035  

62,211,228  

65,439,078  

1,095,227  
225,741  
66,504  
—    

637,676  
20,003  
6,440  
—    

943,634  
—    
—    
878,802  

Potential dilutive common shares .................................

62,526,507  

62,875,347  

67,261,514  

For the years ended December 31, 2013, 2012, and 2011, weighted average shares related to certain stock options of 4,054,261, 

5,645,239, and 4,640,713 respectively, were excluded from the calculation of diluted earnings per share because the stock options 
were anti-dilutive. Anti-dilutive restricted stock and RSU’s of 31,281, and 7,719, respectively, were also excluded from the 
calculation for the year ended December 31, 2013. Anti-dilutive warrants of 145,853 were excluded from the calculation for the year 
ended December 31, 2011. All warrants expired in January 2012.  

12. Significant Customers  

In 2013, 2012, and 2011, no single customer accounted for 10% or more of our revenues. Our accounts receivable balance at 

December 31, 2012, included receivables from one customer comprising 12% of the net total. These receivables were paid to the 
Company in the first quarter 2013.  

13. Commitments and Contingencies  
Leases  

We lease office facilities under non-cancelable operating lease agreements. Our continuing operations include rent expense for 
these operating leases of $1.3 million in each of 2013, 2012, and 2011, respectively. The term of the lease of our headquarter facility 
in Dallas was extended to 2024.  

A summary of our fixed contractual obligations and commitments at December 31, 2013, is as follows:  

(In thousands) 
Operating leases ...................................................... $  1,009  $  1,261  $  1,163  $  1,058  $  1,014  $ 

2014  

2015  

2016  

2017  

2018  

Thereafter 

Total  

6,190  $  11,695 

Claims and Proceedings  

We are subject to legal proceedings, claims, and litigation against our business. While the outcome of these matters is currently 

not determinable and the costs and expenses of defending these matters may be significant, we currently do not expect that the 
ultimate costs to resolve these matters will have a material adverse effect on our consolidated financial statements.  

F-15 

 
  
 
 
  
  
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
 
 
 
  
  
  
  
  
 
 
 
  
14. Income Taxes  

Components of the income taxes are as follows:  

(In thousands) 
Current: 

2013  

2012  

2011  

U.S................................................................................................. $ 
State ...............................................................................................
Foreign ..........................................................................................

124  $ 
148 
123 

116   $ 
164  
66  

Deferred 

Federal ...........................................................................................
State ...............................................................................................
Foreign ..........................................................................................

(1,400)
—   
(1)

(2,300)   
—    
5  

163 
122 
(378)

(9,800)
(2,000)
4 

Income tax (benefit) expense .................................................................. $ 

(1,006) $ 

(1,949)  $ 

(11,889)

A reconciliation of the expected U.S. tax (benefit) expense to income taxes is as follows:  

(In thousands) 
Expected tax (benefit) expense at U.S. statutory rate ............................. $ 
Decrease in valuations allowance- Operations .......................................
Decrease in valuations allowance- Other ................................................
Nondeductible expense and nontaxable income .....................................
State income taxes ..................................................................................
Foreign income taxes ..............................................................................
Other .......................................................................................................

2013  

2012  

2011  

3,212  $ 
(2,650)
(1,400)
(370)
98 
122 
(18)

3,078   $ 
(2,912)   
(2,300)   
21  
108  
71  
(15)   

3,753 
(3,357)
(9,900)
(125)
(1,878)
(374)
(8)

Income tax (benefit) expense .................................................................. $ 

(1,006) $ 

(1,949)  $ 

(11,889)

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities 

for financial reporting purposes and the amounts used for income tax purposes. Components of our deferred income taxes as of 
December 31, 2013 and 2012 are as follows:  

(In thousands) 
Deferred tax assets: 

2013  

2012  

Reserves- Other ............................................................................. $ 
U.S. net operating loss carryforwards ............................................
State net operating loss carryforwards ...........................................
Tax credit carryforwards ................................................................
Stock-based compensation .............................................................
Intangible assets .............................................................................
Depreciable assets ..........................................................................
Other assets ....................................................................................
Total deferred tax assets ................................................................

251   $ 

88,562  
347  
5,619  
2,839  
978  
1,430  
649  
100,675  

Deferred tax liabilities: 

Prepaid expenses ............................................................................
Total deferred tax assets ................................................................
Less valuation allowance ........................................................................
Net deferred income taxes ....................................................................... $ 

(418)   

100,257  
(46,209)   
54,048   $ 

218 
91,396 
487 
5,374 
2,604 
1,421 
1,451 
323 
103,274 

(410)
102,864 
(50,216)
52,648 

The Company has partially reserved its U.S. net deferred tax assets in 2013 and 2012 due to the uncertainty of future taxable 
income. The Company has U.S. net operating loss carryforwards of approximately $260 million which begin to expire in 2020. The 
Company has state credits that net of federal tax expense total $1.9 million which can be utilized through 2027 and state net operating 
losses that have various expiration dates. The Company also has tax credit carryforwards of approximately $3.8 million consisting of 
business tax credits which begin to expire in 2014 and alternative minimum tax credits which do not expire.  

F-16 

 
  
 
 
  
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
  
  
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
  
  
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
 
  
 
  
  
 
 
  
  
 
  
  
  
  
  
In 2010, the Company achieved positive earnings and successfully discontinued operations of its e-Prescribing segment. Based 

on the weight of available objective evidence, including the Company’s history of positive earnings from continuing operations and 
successful exit from e-Prescribing, management believed that it was more likely than not that a portion of the deferred tax asset would 
be realized. Accordingly, the Company reduced its valuation allowance by $4.1 million in 2013, $5.2 million in 2012, and $15 million 
in 2011. The benefit from the 2011 reduction was recorded in part as an $11.8 million income tax benefit and in part as a $3.2 million 
increase to our additional paid in capital. The segregation of the release was due to the reduction related to historical employee stock 
option exercises.  

We have determined that utilization of existing net operating losses against future taxable income is not limited by Section 382 

of the Internal Revenue Code. Future ownership changes, however, may limit the company’s ability to fully utilize its existing net 
operating loss carryforwards against any future taxable income.  

The Company previously recorded a $327 thousand tax contingency liability related to tax year 2004, and that amount and the 
specifics therein remained unchanged except for currency translation adjustments. As of December 31, 2010, the gross amount of our 
unrecognized tax benefits, inclusive of the $327 thousand tax liability and $50 thousand in other uncertain positions in 2008, was 
approximately $461 thousand. Included in this balance were tax positions which, if recognized, would impact our effective tax rate. 
Because the statute of limitations expired on the returns associated with these uncertain tax positions, this contingency was reversed in 
2011, resulting in the recognition of an income tax benefit and positive impact on our 2011 operating results.  

The Company or one of our subsidiaries files income tax returns in the U.S. federal jurisdiction and various states and in the 
Canadian federal and provincial jurisdictions. We have not taken a tax position that, if challenged, would have a material effect on the 
financial statements or the effective tax rate for the twelve-months ended December 31, 2013, or during the prior three years. We have 
determined it is not reasonably possible for the amounts of unrecognized tax benefits to significantly increase or decrease within the 
next twelve months. We are currently subject to a three-year statute of limitations by major tax jurisdictions.  

15. Employee Benefit Plan  

401(k) Plan — We have a retirement savings plan structured under Section 401(k) of the Internal Revenue Code covering 

substantially all of our U.S. employees. Under the plan, contributions are voluntarily made by employees, and we may provide 
contributions based on the employees’ contributions. Our operating income includes $297 thousand, $221 thousand and $185 
thousand, in 2013, 2012 and 2011, respectively, for net contributions from continuing operations to this plan.  

16. ZixCorp Repurchase Program  

On November 6, 2013, the Company’s board of directors approved a share repurchase program that enables the Company to 

purchase up to $15 million of its shares from time to time in the open market. The amount and timing of specific repurchases are 
subject to market conditions, applicable legal requirements, and other factors. The share purchases will be funded from existing cash 
resources and may be suspended or discontinued at any time, however, the share repurchase program will expire on June 30, 2014. 
The Company repurchased 1,976,900 shares at an aggregate cost of $8.8 million under this program during the year ended 
December 31, 2013.  

During the year ended December 31, 2012, we repurchased 3,080,966 shares valued at approximately $9 million. This 
completed a $15 million share repurchase program authorized by our board of directors announced November 9, 2011. During the 
year ended December 31, 2011, we repurchased a total of 6,492,753 shares valued at approximately $21 million as authorized by our 
board of directors under a $15 million share repurchase program announced on March 7, 2011, and the $15 million repurchase 
program announced November 2011.  

F-17 

 
  
17. Quarterly Results of Operations (Unaudited)  
The following is a summary of the quarterly results of operations for the years ended December 31, 2013 and 2012:  

(In thousands except per share data) 
2013 
Revenues ................................................................................. $ 
Gross margin ...........................................................................
Net income ..............................................................................
Basic net income per common share* .....................................
Diluted net income per common share* ..................................
2012 
Revenues ................................................................................. $ 
Gross margin ...........................................................................
Net income ..............................................................................
Basic net income per common share* .....................................
Diluted net income per common share* ..................................

March 31  

June 30  

September 30  

December 31  

Quarter Ended  

11,764  $ 
9,828 
567 
0.01 
0.01 

10,301  $ 
8,446 
2,426 
0.04 
0.04 

11,838 $ 
9,935  
1,871  
0.03  
0.03  

10,343 $ 
8,531  
2,643  
0.04  
0.04  

12,225  $ 
10,321 
3,175 
0.05 
0.05 

11,023  $ 
9,136 
1,943 
0.03 
0.03 

12,311 
10,440 
4,840 
0.08 
0.08 

11,689 
9,634 
3,991 
0.07 
0.06 

*  Net income per share is calculated independently for each quarter. The sum of Net income per share for each quarter may not equal 

the total Net income per share for the year due to rounding differences.   

F-18 

 
  
 
 
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Stock Listing 

The NASDAQ Global Market 
Symbol: ZIXI 

Investor Relations 

Zix Corporation 
2711 N. Haskell Avenue 
Suite 2200, LB 36 
Dallas, TX 75204-2960 
Tel: (214) 515-7357 
Fax: (214) 370-2295 
Email: invest@zixcorp.com 

Shareholder Services 

Visit our Web site: investor.zixcorp.com 
where you may request an investor 
packet, listen to quarterly conference 
calls, access recent SEC filings, learn 
about upcoming investor events, and 
sign up for email alerts. 

Stock Transfer Agent and Registrar 

Computershare Trust Company, N.A. 
250 Royall Street 
Canton, MA 02021 
Tel: (800) 942-5909 

Auditors 

Whitley Penn LLP 
Dallas, Texas 

Form 10-K 

Additional copies of the Company’s Annual 
Report on Form 10-K (including exhibits) to the 
Securities and Exchange Commission for the 
year ended December 31, 2013, are available 
without charge at www.zixcorp.com/investors or 
upon written request by email to 
invest@zixcorp.com or from ZixCorp Investor 
Relations at 2711 N. Haskell Ave., Suite 2200, 
LB 36, Dallas, Texas 75204. 

Zix Corporation 
Corporate Information* 

Board of Directors 

Richard D. Spurr 
Chairman of the Board 

Mark J. Bonney 
President and Chief Executive Officer,  
On Board Advisors, LLC 

Michael E. Dailey 
Chief Operating Officer and Vice President, 
Optica Technologies Incorporated 

Taher A. Elgamal 
Chief Technology Officer of Security, 
Salesforce.com  Inc. 

Robert C. Hausmann 
Chief Financial Officer, Atlantis Computing 

Maribess L. Miller 
Consultant 

Antonio R. Sanchez III 
President, Sanchez Oil & Gas Corporation 

Executive Officers 

Richard D. Spurr 
Chief Executive Officer, President 

James F. Brashear 
Vice President, General Counsel, 
Corporate Secretary 

Michael W. English 
Vice President, Chief Financial Officer 

Russell J. Morgan 
Vice President, Client Services 

David J. Robertson 
Vice President, Engineering 

Corporate Headquarters 
Zix Corporation 
2711 N. Haskell Avenue 
Suite 2200, LB 36 
Dallas, TX 75204-2960 
Tel: (214) 370-2000 
Fax: (214) 370-2070 

* Information current as of April 30, 2014.