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Cohen & Steers
Annual Report 2024

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FY2024 Annual Report · Cohen & Steers
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THE DDOS
PROTECTION
SPECIALISTS
ANNUAL REPORT AND ACCOUNTS 2024
Corero Network Security plc

Corero is dedicated to improving the security and availability 
of the internet through the deployment of innovative 
Distributed Denial of Service (“DDoS”) protection solutions.
We are specialists in automatic detection 
and mitigation solutions, that include 
network visibility, analytics, and reporting 
tools. Corero’s technology provides scalable 
protection capabilities against DDoS 
attacks, in even the most complex edge and 
subscriber environments, ensuring internet 
service availability and uptime.
We protect thousands of organisations worldwide, 
across many verticals. Our customers are primarily 
internet service providers, hosting providers, cloud 
providers and SaaS providers.
We are deployed internationally and, through our own 
teams and strategic partners, we continue to expand 
our footprint.
Governance Report
Governance
36	 Board of Directors
38	 Chairman’s Corporate 
Governance Introduction
39	 QCA Code Compliance
40	 Corporate Governance Report
42	 Board Performance and 
Remuneration Policy
44	 Board Committee Reports
46	 Directors’ Report
49	 Statement of Directors’ Responsibilities
50	 Independent Auditor’s Report
Financial Statements and associated notes
58	 Consolidated Income Statement
59	 Consolidated Statement of 
Comprehensive Income
60	 Consolidated Statement of 
Financial Position
61	 Consolidated Statement of Cash Flows
62	 Consolidated Statement of Changes 
in Equity
63	 Notes to the Financial Statements
88	 Company Statement of 
Financial Position
89	 Company Statement of Changes 
in Equity
90	 Notes to the Company Financial 
Statements
Corporate Directory
95	 Glossary
96	 Corporate Directory
CONTENTS
Overview
01 2024 Highlights
02 At a glance
04 Business Model
06 Growth Strategy
08 Investment Case
10 Go to Market Strategy 
12 Partnerships
16 Product Focus
20 Global Sales
Strategic Report
22 Chief Executive Officer’s Review 
26 Financial Review
30  Key Stakeholders      
Section 172 Statement
32 Principal Risks and Uncertainties 
34  Environmental, Social and 
FOR MORE INFORMATION VISIT  
CORERO.COM
DDOS – 
PROTECTION 
WITHOUT THE
DOWNTIME
Corero Network Security plc  Annual Report and Accounts 2024

1	
ARR is defined as the normalised annualised 
recurring revenues and includes recurring 
revenues from contract values of annual 
support, software subscription and from DDoS 
Protection-as-a-Service (‘DDPaaS’) contracts
2	
EBITDA is defined as Earnings before interest, 
tax, depreciation and amortisation Order intake 
is defined as orders received from customers in 
FY 2024
3	
Order intake is defined as orders received from 
customers in FY 2024
FINANCIAL HIGHLIGHTS
	•
Total revenue increased by 10% to 
$24.6 million (FY 2023: $22.3 million).
	•
ARR1 up 16% to $19.5 million as 
at 1 January 2025 (1 January 2024: 
$16.9 million).
	•
Order intake3 increased by 13% to 
$28.2 million (FY 2023: $24.8 million).
	•
Gross margins of 91% (FY 2023: 90%).
	•
EBITDA2 of $2.5 million (FY 2023: 
$1.8 million).
	•
Profit before taxation of $0.6 million 
(FY 2023: loss of $0.2 million).
	•
Earnings and diluted earnings per share 
of 0.1 cents (FY 2023: 0.0 cents).
	•
Net cash at 31 December 2024 of 
$5.3 million (FY 2023: $5.2 million).
OPERATIONAL HIGHLIGHTS
	•
Customer contract renewal rate of 97% 
(FY 2023: 98%) demonstrating both 
the quality of Corero solutions and 
customer service.
	•
Annualised Recurring Revenues (‘ARR’) 
increased to $19.5 million (FY 2023: $16.9 
million), underpinning future revenues 
and reinforcing the importance of 
Corero’s solutions for our customers.
	•
The Group remains committed to 
ongoing investment across its technology 
platform and resource expansion to 
strengthen its market-leading position.
 
EBITDA2
$2.5m
 
NET CASH
$5.3m
REVENUE
$24.6m
2024
$24.6m
2020
2021
2022
2023
$20.9m
$16.9m
$20.1m
$22.3m
ARR1
$19.5m
2024
$19.5m
2020
2021
2022
2023
$12.8m
$9.8m
$14.4m
$16.9m
GROSS MARGIN
91.3%
2024
91.3%
2020
2021
2022
2023
85.1%
77.3%
87.2%
90.0%
PROFIT/(LOSS)  
BEFORE TAXATION
$0.6m
2024 HIGHLIGHTS
2024
$4.4m
$5.3m
$8.4m
$7.6m
$5.2m
2020
2021
2022
2023
2024
2020
2021
2022
2023
$1.4m
-$4.0m
$0.4m
-$0.2m
$0.6m
2020
2021
2022
2023
$4m
-$1.4m
$2.6m
$1.8m
2024
$2.5m
Corero Network Security plc  Annual Report and Accounts 2024
01
Overview
Strategic Report
Governance
Financial Statements
Corporate Directory

HOW WE DO IT
	•
Intelligent, automation-led solution that 
protects from DDoS attacks in near real 
time. 
	•
Flexible and highly scalable deployment 
options to meet the needs of 
any business. 
	•
Comprehensive visibility with reporting 
and alerting for clear, actionable 
intelligence on the DDoS attack activity.
WHY WE DO IT
	•
To make the internet a safer place by 
protecting organisations from financially 
and reputationally damaging DDoS 
attacks and the downtime they cause.
	•
To enable Corero customers to sleep 
better at night knowing they benefit from 
rapid attack discovery, rapid mitigation, 
and a flexible, adaptive solution.
OUR MISSION
Corero ensures businesses stay online 
by stopping cyberattacks before they 
cause downtime, protecting revenue and 
customer trust.
WHAT WE DO
•	 Protect service availability in the event of a DDoS 
attack
•	 Eliminate the need for operator intervention by 
automatically mitigating over 98% of attacks
•	 Enable service providers to create additional revenue 
streams by offering added-value DDoS protection 
services
AT A GLANCE
WE ARE… 
DYNAMIC AND 
FAST-MOVING
Corero is dedicated to improving the 
security and availability of the internet 
through the deployment of innovative 
DDoS protection solutions.
FOR MORE INFORMATION VISIT  
CORERO.COM/ABOUT/ 
Corero Network Security plc  Annual Report and Accounts 2024
02

OUR VISION
In an internet connected world, every 
business, application and individual is 
protected from DDoS attacks.
OUR PURPOSE
To best protect customers from the 
damaging impact of DDoS cyber 
security attacks.
OUR VALUES
Values and beliefs underpin the strategy. 
These are lived to become the culture:
Trusted Partner and Problem-
Solver; Innovative & Ambitious; 
Passionate & Committed; Transparent 
Communication
OUR FOCUS
Maintain our superior technological 
performance while delivering 
sustainable, long-term value to 
our stakeholders.
1. Grow our pipeline and 
corresponding revenue
2. Leverage our existing reseller and 
strategic partnerships further develop 
the channel
3. Target and expand our Ideal Customer 
Profile (‘ICP’) relationships
4. Continue to monetise our existing 
services and introduce new services
5. Amplify our demand generation 
programmes
6. Continue to enhance our technological 
innovation leadership
OUR STRATEGIC GOALS
NUMBER OF  
EMPLOYEES
90
NUMBER OF 
GLOBAL OFFICES
3
NUMBER OF 
CHANNEL PARTNERS
40
KEY FACTS 
NUMBER OF 
ALLIANCE PARTNERS
3
NUMBER OF 
LIVE CUSTOMER 
DEPLOYMENTS
375
RENEWAL  
RATE 
97%
COUNTRY  
FOOTPRINT 
50+
Overview
Strategic Report
Governance
Financial Statements
Corporate Directory
Corero Network Security plc  Annual Report and Accounts 2024
03

BUSINESS MODEL
Corero’s technology provides scalable 
protection capabilities against DDoS 
threats, in even the most complex edge 
and subscriber environments, ensuring 
internet service availability and uptime.
A CUSTOMER DRIVEN BUSINESS MODEL:
KEY SOLUTIONS
INPUTS
SALES CHANNELS
OUR CULTURE 
& VALUES
See page 30
GO-TO MARKET 
STRATEGY AND 
EVOLVING PRODUCTS 
See page 10, 16-21.
INDIRECT SALES PARTNERS
Value-added resellers 
and distributors.
DIRECT SALES
Corero sales team.
SECUREWATCH
Support, software updates, 
maintenance, monitoring.
INLINE/DATA PATH 
PROTECTION
Surgical protection 
applicances for 10G, 
100G and 400G network 
deployment.
EDGE MITIGATION 
Out-of-band detection, 
using customers’ routers 
to protect large networks 
at the edge, without 
deploying appliances.
CLOUD MITIGATION
Defends networks against 
saturating attacks which 
exceed their internet 
bandwidth capacity.
STRATEGIC ALLIANCES 
Akamai, Juniper and GTT.
SMARTWALL ONE
SCRUBBING PROTECTION
Out-of-band detection for larger 
networks, with redirection to 
surgical protection appliances in 
central scrubbing centers.
Corero Network Security plc  Annual Report and Accounts 2024
04

CUSTOMER SEGMENTS
SOURCE OF REVENUE
OUTPUTS
CASH FOR 
REINVESTMENT
See page 28
FINANCIAL RETURNS 
FOR INVESTORS
See page 27
ESG
See page 34
SAAS PROVIDERS
EDGE PROVIDERS
INTERNET 
SERVICE PROVIDERS
SOFTWARE SUBSCRIPTION 
LICENCE
SUPPORT AND SERVICES
REVENUE SHARE
APPLIANCE 
AND 
PERPETUAL 
SOFTWARE 
LICENCE
DDOS-PROTECTION-AS-A-
SERVICE
HOSTING AND CLOUD 
PROVIDERS
Corero Network Security plc  Annual Report and Accounts 2024
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Overview
Strategic Report
Governance
Financial Statements
Corporate Directory

GROWTH  
STRATEGY
GROWTH STRATEGY:
Expand Global Footprint
	• Significant new deals and 
partnerships driven by 
a restructured sales and 
marketing team
Leading with Innovation
	• Continued R&D investment is 
driving new product development 
and enhancements of existing 
offerings across on-premises, 
hybrid, and cloud environments
	• Development of the CORE 
platform offers additional new 
products to support our existing 
customers and opens additional 
markets in which to expand
Financial Discipline and 
Profitability
	• Focused on financial health, 
cash generation, controlled 
investment, and profitability
Partnership Leverage
	• Relationships with key alliance 
partners such as Akamai, Juniper 
Networks, and GTT are supporting 
regional expansion
Corero Network Security plc  Annual Report and Accounts 2024
06

PRODUCT DEPLOYMENT METHODOLOGY
HYBRID CLOUD
	• Supports hybrid-first strategies as 
cloud repatriation grows
	• Optimises cloud costs and 
compliance
	• Automatically redirects traffic to 
the cloud when needed
	• Always-on protection; no manual 
intervention
ON-PREMISES
	• Fastest DDoS protection with 
near-zero latency
	• Direct control over security 
posture and compliance
	• Maximise performance whilst 
reducing cloud dependency
	• Multi-site resilience ensures 
uptime across locations
Our Product Proposition
FOR MORE INFORMATION VISIT  
CORERO.COM/DDOS-SECURITY-PRODUCTS/
Corero Network Security plc  Annual Report and Accounts 2024
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Overview
Strategic Report
Governance
Financial Statements
Corporate Directory

$2bn+
addressable market and 
growing at pace
Market-leading, 
disruptive technology
Significantly enhanced 
unique capabilities 
compared to 
competition
Experienced 
management team with 
extensive market and 
competitor knowledge 
and experience
Strong financial base – 
debt-free aligned with 
accelerated ARR growth
Growing alliance 
and channel 
partner footprint, 
including global and 
regional experts
OUR OPERATIONAL PROGRESS
June
2024
February
2024
May
2024
March
2024
April
2024
January
2024
INVESTMENT CASE
OUR STRENGTHS
Signed $1m contract 
renewal and expansion 
with DigitalOcean
Secured orders of 
>$8m in Q1
Announced US 
partnership with TierPoint, 
agreeing $1.8m contract 
over 3 years
Announced strategic Latin 
American partnership with 
TechEnabler
Commenced trading on 
the US OTCQB Venture 
Market (OTCQB: DDOSF)
Expanded strategic 
European partnership 
with Ingecom Ignition
Launched AI-assisted 
Corero DDoS Intelligence 
Service to enhance 
SmartWall ONE offering
Corero Network Security plc  Annual Report and Accounts 2024
08
Corero Network Security plc  Annual Report and Accounts 2024
08

Ongoing R&D 
investment propelling 
new services and 
product deployments
July
2024
November 
2024
December
2024
October
2024
September
2024
August
2024
FOR MORE INFORMATION VISIT  
CORERO.COM/DDOS-SECURITY-PRODUCTS/
 Announced key customer 
win in the Middle East 
with stc Bahrain
Delivered contract win 
with Everstream, a leading 
US fibre connectivity 
services provider
Launched Corero 
Observability & Resiliency 
Ecosystem (‘CORE’)
Upgraded to OTCQX 
from OTCQB Venture 
Market
Secured contract with 
Brazil’s Forte Telecom, 
worth $1.2m across  
3 years
Corero Network Security plc  Annual Report and Accounts 2024
09
Overview
Strategic Report
Governance
Financial Statements
Corporate Directory
09
Corero Network Security plc  Annual Report and Accounts 2024

GO-TO-MARKET 
STRATEGY
Expanding Global Footprint &  
Partnership Channel 
	• Leveraging alliance and channel partnerships 
to grow presence across key regions and 
expanding into:
	– LATAM
	– Middle East
	– Southeast Asia
	• VP Alliances onboarded in May 2024 to 
reshape and revitalise alliances go-to-market 
strategy
	• Hired an experienced senior Channel Partner 
Manager in November 2024 to refresh the 
Group’s channel partner network and drive 
value-add partnership model
Investing in Sales & 
Marketing Initiatives 
	• Grown direct Sales team, reinforcing 
traditional markets in North America and 
Europe, while expanding in other territories 
such as LATAM, Middle East and Southeast 
Asia
	• Intent-based marketing strategy for more 
accurate targeting and increased pipeline 
velocity
	• MarTech stack streamlining and integration 
for increased visibility and efficiency
	• Integrated multiple AI-based technologies for 
content generation, market and competitor 
analysis
	• Marketing activity spend was up 43% year-on-
year in 2024
DELIVERING ACROSS FOUR REVENUE-GENERATING ACTIVITIES 
Corero Network Security continues to focus on 
increasing its market share across the globe without 
compromising on the quality of its products and services 
as the DDoS market continues to evolve at a fast pace, 
and with a myriad of new digital threats emerging.
In 2024, the Company announced a reinvigorated go-
to-market strategy underpinned by four key strategic 
pillars to generate revenues and drive long-term 
growth.
Corero Network Security plc  Annual Report and Accounts 2024
10

I AM CONFIDENT THAT OUR REINVIGORATED 
GO-TO-MARKET STRATEGY WILL DELIVER  
ON THE AMBITIOUS GROWTH TARGETS WE 
HAVE SET.”
Carl Herberger
CHIEF EXECUTIVE OFFICER
Securing Client Renewals &  
Realising Cross/Upsell Opportunities
	• Maintaining or improving on excellent 97% 
customer retention rate
	• Delivering price increases for renewals and 
extensions as standard
	• 70% of customers upsold during contract 
period or at renewal
	• Continuing to diversify product suite to 
generate cross-sell and upsell opportunities 
with longstanding partners 
Accelerating Market  
Competitiveness
	• Actively targeting competitor displacements 
in key geographies, underpinned by 
management’s confidence in Corero’s 
market-leading product ecosystem
	– Chosen by TierPoint LLC after rigorous 
assessment process to replace incumbent 
provider
	• Launching product innovations and add-
on features to attract new customers and 
strengthen position when approaching new 
business exploration
Corero Network Security plc  Annual Report and Accounts 2024
11
Overview
Strategic Report
Corporate Directory
Financial Statements
Governance
Strategic Report
Overview

LEVERAGING ALLIANCE 
PARTNERSHIPS 
TO ACCELERATE 
INTERNATIONAL EXPANSION: 
AKAMAI TECHNOLOGIES
OUR CUSTOMERS 
CONTINUALLY SEEK MORE 
ROBUST PROTECTIONS 
AGAINST CYBERTHREATS, 
SUCH AS DDOS ATTACKS, 
WHILE ALSO ASPIRING 
TO BROADEN THEIR 
SECURITY SERVICES. 
ADDING DDOS CLOUD-
BACKUP PROTECTION 
POWERED BY PROLEXIC 
TO OUR SMARTWALL 
ONE PORTFOLIO IS A 
TESTAMENT TO OUR 
COMMITMENT TO 
THIS GOAL AND OUR 
ONGOING PARTNERSHIP 
WITH AKAMAI.”
Carl Herberger
CORERO CHIEF EXECUTIVE OFFICER
UNVEILING CORERO’S 
SMARTWALL ONE HYBRID 
CLOUD DDOS PROTECTION 
SOLUTION - POWERED BY 
AKAMAI
As Corero’s partnership with Akamai 
has progressed since 2023, it has further 
deepened collaboration to provide 
industry-leading infrastructure security 
solutions. In April 2024, Corero announced 
the launch of a SmartWall ONE Hybrid 
Cloud DDoS Protection solution, powered 
by Akamai Prolexic.
The cloud-based service has expanded 
Corero’s product offering, combining 
the Company’s on-premises solutions 
with Akamai’s cloud capabilities. This has 
created a robust, hybrid DDoS solution 
able to meet the evolving needs of 
customers by providing a comprehensive, 
scalable cybersecurity solution.
The solution encompasses top-tier 
DDoS cloud-backup service, equipping 
customers with enhanced protection 
capabilities and delivering significant 
operational benefits. 
Corero’s alliance partnership with 
Akamai has fuelled revenue growth by 
increasing routes to market, solidifying the 
Company’s market-leading position in the 
cybersecurity sector. 
Corero initiated its 
strategic international 
partnership with Akamai, 
the cloud computing and 
cybersecurity giant, in 
September 2023.
Through this unique 
partnership, Corero has expanded 
its product offering by combining 
its on-premises solutions with 
Akamai’s cloud capabilities, 
fulfilling the market’s need for a 
robust and highly flexible hybrid 
DDoS solution. 
The partnership has also enabled 
Akamai to deliver superior DDoS 
protection to customers through 
solutions powered by Corero’s 
SmartWall ONE.
PARTNERSHIPS
FOR MORE INFORMATION VISIT  
CORERO.COM/DDOS-SECURITY-PRODUCTS/
Corero Network Security plc  Annual Report and Accounts 2024
12

OUR PARTNERSHIP 
WITH CORERO ALLOWS 
US TO DELIVER A 
ROBUST SOLUTION 
WHILE ENABLING 
ORGANISATIONS TO 
SELECT THE MOST 
OPTIMAL DDOS SOLUTION 
FOR THEIR INDIVIDUAL 
USE CASES WHETHER 
IT BE ON-DEMAND, 
ALWAYS-ON, CLOUD, 
ON-PREMISES, OR IN A 
HYBRID ENVIRONMENT.”
Sean Lyons
AKAMAI SENIOR VICE PRESIDENT 
AND GENERAL MANAGER OF 
INFRASTRUCTURE SECURITY
CORERO EXPANDS ITS GLOBAL FOOTPRINT BY 
COLLABORATING WITH ALLIANCE PARTNERS
Alliance partnerships are central to Corero’s go-to-market strategy, 
representing a core revenue stream and the opportunity to offer best-
in-class infrastructure security solutions through market leaders. 
The strategy involves partnering with major global suppliers who offer 
technology capabilities that are powered or enhanced by Corero’s 
solutions, as well as combining complementary solutions to create 
hybrid products that provide cutting-edge cyber protection.
Alliance partnerships support Corero’s commitment to providing 
unparalleled DDoS protection services and underpin the Company’s 
growth strategy by enabling it to reach a wider range of customers 
accessible through large industry players like Akamai.
CONTINUED 
COLLABORATION 
DRIVING INNOVATION
Corero product powered by 
Akamai
SmartWall ONE Cloud 
Backup solution
Akamai products powered by 
Corero
Akamai Prolexic On-Prem
Akamai Prolexic Hybrid
FOR MORE INFORMATION VISIT  
CORERO.COM/PARTNERS/
Benefits of Alliance Partnerships
CORERO’S ALLIANCE PARTNERS
3
	• Increased routes to market
	• Delivered incremental revenue growth 
opportunities
	• Diversified product offering
	• Gained insight and expertise from tier-1 
cybersecurity businesses
Corero Network Security plc  Annual Report and Accounts 2024
13
Overview
Strategic Report
Governance
Financial Statements
Corporate Directory

KEY CUSTOMER WIN:
TIERPOINT LLC
In April 2024, Corero announced a strategic 
partnership with TierPoint LLC, a leading provider of 
hybrid IT platform solutions in the US, replacing its 
incumbent solutions provider in the process. Corero 
has since successfully integrated its solutions into 
TierPoint’s infrastructure, significantly enhancing 
its DDoS protection and mitigation capabilities to 
benefit both TierPoint and its 1,000+ US customers.
WHY CORERO?
TierPoint had grown increasingly frustrated 
with its existing DDoS protection solution, 
with frequent disruptions and slow 
mitigation times jeopardising customer trust.
Corero’s solutions, including its market-
leading application SmartWall ONE, 
performed so well in a testing phase that 
TierPoint decided to switch provider to 
Corero even while still under contract with 
the incumbent vendor.
CORERO’S IMPACT
By offering highly automated, real-time 
threat detection, Corero has materially 
reduced TierPoint’s mitigation time 
during DDoS attacks from 6 minutes to 
just 18 seconds. This reinforces the robust 
capabilities of Corero’s DDoS protection 
solutions and has enabled TierPoint to 
vastly improve its core service offering 
to customers.
Additionally, Corero’s ability to integrate 
directly with TierPoint’s Juniper routers 
has enabled a ‘protective mesh’ that has 
bolstered defences without requiring 
additional hardware investments, 
highlighting the value and adaptability of 
Corero’s solution.
KEY BENEFITS TO TIERPOINT
4. Significant Cost Savings
3. Collaborative Partnership
2. Real-Time Protection
1. Enhanced Defence with Existing Tech
CORERO HAS SIGNIFICANTLY 
REDUCED TIERPOINT’S DDOS 
ATTACK MITIGATION TIME 
     From  
6 minutes to  
18 seconds
PARTNERSHIPS CONTINUED
Corero Network Security plc  Annual Report and Accounts 2024
14

WE ARE DELIGHTED WITH THE 
ONGOING SUCCESS OF OUR 
PARTNERSHIP WITH TIERPOINT, 
WHICH IS TESTAMENT TO THE HARD 
WORK AND TENACITY OF OUR ENTIRE 
TEAM AND UNDERSCORES THE 
TRUST AND CONFIDENCE LEADING 
BUSINESSES PLACE IN OUR PREMIUM 
DDOS SOLUTIONS.
Carl Herberger
CORERO CHIEF EXECUTIVE OFFICER
OUR TIME TO MITIGATION FOR DDOS 
ATTACKS WENT FROM SIX MINUTES 
WITH PREVIOUS SOLUTIONS TO 18 
SECONDS WITH CORERO, ENSURING 
THAT OUR CUSTOMERS EXPERIENCE 
UNINTERRUPTED SERVICES, EVEN 
DURING ATTACKS.
Paul Mazzucco
TIERPOINT CHIEF INFORMATION SECURITY OFFICER
Strategic Report
Overview
INCREASED MARKET REACH
With over 40 data centres across 20 US 
markets, TierPoint supports thousands 
of customers across the country, 
highlighting the importance of advanced 
DDoS protection in safeguarding 
its extensive portfolio. Working in 
partnership with TierPoint to support 
their growing customer base will enable 
Corero to expand its routes to market in 
the geography.
CONTINUED NEW 
CONTRACT MOMENTUM 
WITH BUSINESSES 
OPERATING IN THE 
CYBERSECURITY SPACE 
Through the partnership, Corero 
is leveraging TierPoint’s extensive 
customer network, which ranges 
from small businesses to Fortune 500 
enterprises, to support the Company’s 
overarching US growth strategy.
Coupled with continued investment in 
US sales and marketing initiatives and 
strategic North American recruitment, 
Corero’s partnership has already begun 
to facilitate new business opportunities 
across what is an increasingly important 
region for the business.
NORTH AMERICA: 
Corero’s Key Geography
NORTH AMERICA 
REPRESENTS
71% 
of Corero’s FY 2024 sales
Growing DDoS Defence 
Market
NORTH AMERICA 
ESTIMATED TO ACCOUNT 
FOR
39% 2024
of the global DDoS protection and 
mitigation market growth in the 
period to 2027***
TIERPOINT’S US FOOTPRINT 
(*** Technavio - DDoS Protection Mitigation Market by Component, 
Application, and Geography - Forecast and Analysis 2023-2027, 
https://www.technavio.com/report/ddos-protection-mitigation-market-analysis.)
Corero Network Security plc  Annual Report and Accounts 2024
15
Overview
Strategic Report
Governance
Financial Statements
Corporate Directory

PRODUCT FOCUS
EVOLVING  
SMARTWALL ONE
Corero’s flagship DDoS defence 
solution, SmartWall ONE, is 
valued by businesses across the 
globe for its reliability, resilience 
and affordability.
FOUR KEY PRODUCT ENHANCEMENTS
Across 2024, the Company unveiled a number of product 
enhancements to ensure SmartWall ONE remains at the 
forefront of the DDoS protection market and capable of 
safeguarding any corporation from both well-known and 
nascent DDoS cyberthreats.
Key launches during the period, detailed below, include the 
introduction of a new platform to convert DDoS protection 
from a cost into a revenue stream, and new features aimed 
at improving customer experience, increasing SmartWall 
ONE’s flexibility in line with industry trends, and maintaining 
Corero’s excellent client retention track record.
FEBRUARY 2024 –  
400G SmartWall ONE extension
Corero extended the capabilities of SmartWall ONE to 
include additional support for 400G connected DDoS 
detection, mitigation, and protection from the edge to the 
network core.
This upgrade is facilitating new business opportunities 
as organisations continue to favour using x1 400G 
appliance instead of multiple 100G appliances to minimise 
networking equipment footprint, cost, and complexity.
MARCH 2024 –  
Launched the Corero DDoS Intelligence 
Service (‘CDIS’)
CDIS is an automated, AI-assisted service for SmartWall 
ONE customers that delivers pre-emptive, predictive attack 
mitigation, before the first attack is even seen. CDIS has 
bolstered SmartWall ONE by providing it with access to 
Corero’s latest DDoS threat research and insights. 
CDIS integrates seamlessly with the SmartWall ONE 
platform and has been deployed as an additional annual 
subscription service for all SmartWall ONE customers 
that are subscribed to Corero SecureWatch Attack-Time 
Assistance Service.
Corero Network Security plc  Annual Report and Accounts 2024
16

JUNE 2024 –  
Enhanced SmartWall ONE Service Portal
Corero introduced new features to enhance its SmartWall 
ONE Service Portal and will support Corero’s service and 
hosting provider clients seeking to differentiate their 
services and drive revenue growth.
1 Executive reports - provides real-time, automated insights 
into the effectiveness of DDoS protection investments, 
enhancing transparency and building stakeholder trust.
2 Tenant prospecting - enables providers to target 
unsubscribed customers who could benefit from 
additional protection, creating an additional revenue 
stream and facilitating customer retention.
OCTOBER 2024 –  
Rolled out 400G appliance
Corero launched its new hardware appliance, Network 
Threat Detector (‘NTD’) 3400, a 400G enhancement to the 
SmartWall ONE DDoS protection appliance.
The new NTD 3400 offers four times the connectivity of 
previous models with more efficient power consumption, 
allowing providers and businesses to protect their 
networks more efficiently while also accommodating 
long-term scalability.
Corero Network Security plc  Annual Report and Accounts 2024
17
Overview
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Corero continues to innovate and diversify 
to generate new business opportunities 
and enhance its value proposition.
PRODUCT FOCUS CONTINUED
CORERO OBSERVABILITY 
& RESILIENCY ECOSYSTEM 
(‘CORE’)
Corero has grown to become a leading name 
in the DDoS protection and mitigation services 
space, developing a cutting-edge suite of 
products able to repel the most sophisticated and 
aggressive DDoS attacks.
Although widespread and damaging from both 
a financial and reputational perspective, DDoS 
attacks are only one threat to service availability. To 
unlock commercial opportunities across the wider 
market, the Company launched CORE in October 
2024, its first expansion beyond DDoS.
A NEW SAAS CLOUD-BASED 
AVAILABILITY PROTECTION 
PLATFORM
CORE is a new SaaS cloud-based availability 
protection platform designed to integrate 
seamlessly into customers’ existing security 
infrastructure. A highly adaptive innovation, 
CORE will deliver advanced defence capabilities, 
providing greater flexibility and cost-efficiency to 
keep organisations secure.
EXTENDING BEYOND 
DDOS
FOR MORE INFORMATION VISIT  
CORERO.COM/COREDDOS/
Corero Network Security plc  Annual Report and Accounts 2024
18

HOW DOES CORE WORK?
CORE is a cloud-native availability 
protection platform designed to handle 
high-volume DDoS attacks, anomalous 
traffic patterns, and application layer threats, 
ensuring consistent service availability.
CORE seamlessly enhances existing security 
environments and delivers advanced 
defence, leveraging existing infrastructure 
while offering flexibility and cost-efficiency 
to keep organisations secure and agile. 
CORE creates a comprehensive data lake by 
gathering feeds from multiple sources across 
a network and generating AI/ML-assisted 
insights, turning isolated security events into 
actionable intelligence. This enables smarter 
coordination across a network, creating a 
more resilient ecosystem.
BENEFITS OF CORE
Uses the power of AI to protect 
customer networks from wider service 
availability threats
Keeps organisations secure while 
guaranteeing greater cost efficiencies and 
flexible solutions
Creates new cross-sell opportunities with 
existing clients and strengthens Corero’s 
value proposition
Corero addresses an estimate $2bn+ of today’s DDoS security market, which we believe grows to $10bn with 
the addition of the initial CORE competencies. This combined market is expected to grow 17% CAGR to 2030.
SIZE OF ADDRESSABLE MARKET
2023
$3.6bn
$5.1bn
$3.0bn
$28.0bn
2030
$9.1bn
$17.7bn
$6.0bn
$82.0bn
DDoS
L7 WAAP / WAF
Traffic Observability
Zero Trust
Corero Network Security plc  Annual Report and Accounts 2024
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Ongoing investment in sales and 
marketing initiatives positions 
Corero for further growth in 2025.
Increased Global Sales 
Footprint Supports 
Growth Ambitions
As part of its reinvigorated go-to-market strategy, Corero has 
focused increasingly on direct investment in its sales function, 
recognising the significant opportunity it has to broaden 
the Group's sales footprint across previously unexplored 
territories, as well as generate additional cross and upsell 
revenues with existing customers in established geographies.
GLOBAL SALES
Recruited a sales representative in 
Chile to further accelerate our Latin 
America growth momentum
Reinforced existing sales teams 
across North America and Europe to 
increase touchpoints, strengthen client 
relationships and drive new business
GROWING SALES TEAM FOOTPRINT
Corero Network Security plc  Annual Report and Accounts 2024
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Corero Network Security plc  Annual Report and Accounts 2024
20

OUR SALES AND MARKETING TEAMS MADE GREAT STRIDES ACROSS 2024, 
PLAYING A PIVOTAL ROLE IN GROWING CORERO’S MARKET REACH AND 
GENERATING NEW CUSTOMER TRACTION.
OUR OVERARCHING PLAN TO INVEST IN SALES INITIATIVES HAS BEEN TWO-
PRONGED: FOCUSED ON FACILITATING BUSINESS EXPLORATION ACROSS 
NEW JURISDICTIONS WHILE BOLSTERING OUR EXISTING TEAMS IN KEY 
GEOGRAPHIES TO SUPPORT AND ENHANCE CUSTOMER RELATIONSHIPS.
WITH NEW CONTRACT WINS AND PARTNERSHIPS SECURED IN 2024 ACROSS 
LATIN AMERICA AND THE MIDDLE EAST, I AM DELIGHTED WITH THE INITIAL 
IMPACT OF OUR INVESTMENT AND WE ARE AIMING TO DELIVER EVEN 
MORE CUSTOMER WINS IN THESE REGIONS AS WELL AS OUR EXISTING 
GEOGRAPHIES WHERE, LEVERAGING RECENT PRODUCT LAUNCHES AND 
ENHANCEMENTS, WE CONTINUE TO STRENGTHEN OUR PRESENCE AND 
PURSUE CROSS AND UPSELL OPPORTUNITIES.
Carl Herberger
CORERO CHIEF EXECUTIVE OFFICER
Hired experienced sales personnel in 
Dubai and Singapore for the first time
2023
2024
NEW REGIONS
3
NEW SALES REPS
6
INCREASED  
MARKETING SPEND
43%
TOTAL GLOBAL  
SALES TEAM
14
21
Corero Network Security plc  Annual Report and Accounts 2024
Corero Network Security plc  Annual Report and Accounts 2024
21
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Carl Herberger
CHIEF EXECUTIVE OFFICER
CHIEF EXECUTIVE OFFICER’S REVIEW
THE COMPANY 
DELIVERED A STRONG
PERFORMANCE
ACROSS FY 2024
REVENUE
10%
increase
ARR
16%
increase
Corero Network Security plc  Annual Report and Accounts 2024
22

INTRODUCTION
	•
FY 2024 was a strong operational and 
financial year for Corero, with the 
Company trading well throughout 
the year and delivering new business 
opportunities across key geographies. 
The Group delivered solid topline 
growth, achieving a 10% increase in 
revenues to $24.6 million (2023: $22.3 
million), and EBITDA of $2.5 million, up 
42% year‑on-year.
	•
In addition, Annual Recurring Revenues 
('ARR') grew 16% to $19.5 million (2023: 
$16.9 million) as customers continue 
to integrate Corero’s subscription-
based solutions and DDoS Protection 
as-a-Service ('DDPaaS') products for 
comprehensive DDoS attack protection. 
Order intake, another key performance 
indicator for the Group, also rose 13% 
to $28.2 million for FY 2024 (2023: $24.8 
million).
	•
Corero remained debt-free with cash of 
$5.3 million at the end of the year. This 
strong financial footing has enabled 
the Group to accelerate its go-to-
market strategy and maintain ongoing 
investment across its sales and marketing 
functions, as well as additional R&D 
expenditure to support further product 
expansion. The Group’s reinvigorated 
growth strategy which focuses on both 
converting internally generated leads 
and leveraging existing partnerships, as 
well as a greater emphasis on actively 
targeting competitor displacements, 
continues to gain traction and this is 
evidenced by Corero’s success across the 
year in securing new mandates.
	•
The Company’s growing portfolio 
of strategic alliance and channel 
partnerships, alongside direct sales 
activities, continues to provide Corero 
with multiple routes to market. This 
global network of trusted partners and 
regional experts has created a sales 
platform to support Corero in growing 
its reputation as a reliable, fair-priced 
provider of DDoS defence solutions.
STRATEGIC PRIORITIES
Corero continues to focus on increasing 
its DDoS defence market share across the 
globe whilst maintaining and expanding 
relationships with current customers who 
value the quality of its award-winning 
products and services.
In 2024, the Company announced a 
reinvigorated go-to-market strategy 
underpinned by four key strategic pillars to 
accelerate revenue generation and drive 
long-term growth:
	•
Expanding global footprint and 
partnership channels - leveraging alliance 
and channel partnerships to grow presence 
across key regions, including Latin America, 
the Middle East and APAC
	•
Investing in sales and marketing 
initiatives – enhancing the field marketing 
strategy, increasing marketing activity and 
spend, and hiring experienced personnel 
in new geographies
	•
Securing client renewals and realising 
cross/upsell opportunities - maintaining 
or improving on excellent 97% customer 
retention rate, delivering price increases for 
renewals and extensions as standard, and 
continuing to diversify the product mix
	•
Accelerating market competitiveness 
– actively targeting competitor 
displacements in key geographies, and 
launching new product innovations and 
add-on features aimed at attracting new 
customers 
OPERATIONAL REVIEW
A key feature of 2024 has been to drive the 
Company’s new business efforts globally 
and share these successes with the Group’s 
key stakeholders. Since January 2024, the 
Group has secured a steady flow of contract 
renewals, expansions and new mandates, 
including those listed below.
Corero has continued to focus on securing 
select new channel partners to broaden 
the Group’s routes to market and, more 
importantly, expand its global reach. These 
include:
	•
Three-year partnership with US-based A2 
Hosting, an existing Corero customer and 
leading provider of high-performance 
hosting solutions
	•
New strategic partner agreements in 
Latin America with NovaRed, VGL, and 
GreyMatter post-year end
CUSTOMER WINS
	•
Three-year, $1.8 million partnership 
with TierPoint, a leading provider of 
secure, connected IT platform solutions, 
with Corero replacing the incumbent 
solutions provider
	•
Significant contract renewal and 
expansion with a leading US SaaS 
provider, valued at over $2 million over 
three years
	•
Three-year, $1 million plus contract with 
a top-10 US fibre provider, with Corero 
replacing the incumbent solutions 
provider in a number of the provider’s US 
data centres
	•
$1 million plus, three-year contract 
extension with DigitalOcean, a leading 
US cloud computing provider, expanding 
the current range of services provided 
by Corero
	•
Three-year, $0.6 million contract renewal 
with a large national US fibre provider. In 
addition to the renewal, Corero was also 
awarded a $1 million expansion to the 
existing contract 
	•
Three-year, $0.3 million contract with a 
fast-growing North American pioneer in 
VoIP technology, with Corero replacing 
the incumbent cloud provider
	•
Expanded contract with a leading global 
US-based SaaS provider for $0.4 million 
additional term licence capacity and 
associated support
	•
Three-year contract with a leading 
Icelandic IT services provider to support 
its high media tenant profile of national 
enterprises and government agencies
	•
Post-year end, TechEnabler secured a 
new contract to implement Corero’s 
SmartWall ONE solution for a major 
telecommunications provider in Brazil, 
with Corero replacing the incumbent 
solutions provider 
Corero Network Security plc  Annual Report and Accounts 2024
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	•
Significant partnership with stc 
Bahrain, the market leader in Bahrain’s 
telecommunications sector, to 
support the Company’s Middle East 
expansion goals
	•
Three-year partnership worth $1.2 million 
with Forte Telecom, one of the largest 
telecommunications providers in Rio de 
Janeiro, Brazil
	•
Post-year end, new channel partnership 
to expand into Peru with A51 Technology, 
a firm with over 20 years of experience in 
cybersecurity solutions
Together with the Group’s existing strategic 
alliances with Juniper Networks, GTT 
Communications and Akamai Technologies, 
Corero’s reinvigorated channel partnership 
momentum has ensured that the Group 
has a strong network to support its global 
expansion efforts. This is evidenced in 
Corero’s recent wins in Latin America, where 
the Company has secured a number of 
exciting new customer mandates.
At the end of the year, the Group also 
qualified for, and upgraded to, the OTCQX 
from the OTCQB Venture Market. This 
listing is directly in line with the Company’s 
ambitions to further expand its reach and 
visibility into the US investor market.
PRODUCT INNOVATION
Continued R&D investment is driving new 
product development and enhancements 
of existing offerings across on-premises, 
hybrid, and cloud environments. Through 
FY 2024, the Company unveiled a number 
of product upgrades to ensure its SmartWall 
ONE solution remains at the forefront of 
the DDoS protection market and capable 
of safeguarding any corporation from both 
well-known and nascent DDoS cyberthreats.
Key launches include Corero DDoS 
Intelligence Service (“CDIS”), an AI-assisted 
service for SmartWall ONE customers, as 
well as a 400G extension to SmartWall ONE 
and the introduction of new features to 
enhance the SmartWall ONE Service Portal. 
Collectively, these innovations are projected 
to further improve customer experience, 
increase SmartWall ONE’s flexibility in line 
with industry trends, and maintain Corero’s 
excellent client retention track record.
CHIEF EXECUTIVE OFFICER’S REVIEW CONTINUED
In order to access commercial opportunities 
across the wider service availability market, 
the Company launched CORE in October 
2024, its first expansion beyond DDoS. 
CORE is a new SaaS cloud-based availability 
protection platform designed to integrate 
seamlessly into customers’ existing security 
infrastructure. The Group is in the process 
of extending the capabilities of CORE in 
a phased development programme and 
will update the market in due course on 
its progress.
SALES AND MARKETING 
INVESTMENT 
During FY 2024, Corero focused increasingly 
on direct investment in its sales function, 
recognising the significant opportunity it 
has to broaden the Group’s sales footprint 
across previously unexplored territories, 
as well as generate additional cross and 
upsell revenues with existing customers in 
established geographies.
Strategic marketing activity spend grew by 
43% year-on-year, with capital designated 
to lead generation programmes including 
regional tradeshows, content syndication 
campaigns, webinars, and sponsored social 
media content.
 Other key initiatives included:
	•
Hiring an experienced senior channel 
partner manager to refresh the Group’s 
channel partner network and create 
greater sales traction
	•
Created regional sales hubs across Latin 
America, APAC and the Middle East, 
hiring experienced sales personnel in 
Dubai, Singapore and Chile to accelerate 
Corero’s ambition to increase its 
market reach
	•
Reinforced existing sales teams 
across North America and Europe 
to increase touchpoints, strengthen 
client relationships and drive new 
business development
Increased investment played a pivotal 
role in growing Corero’s market reach and 
generating new customer traction during 
the year, particularly in regions such as 
Latin America and the Middle East where 
efforts are being made to expand the 
Company’s presence.
The launch of the new CORE platform will 
also enable Corero to capitalise on new 
market opportunities with an expanded 
product portfolio to take to market.
DDOS ADDRESSABLE MARKET 
AND MARKET DRIVERS
The rapid growth of the global DDoS 
mitigation market is showing no signs of 
abating. Latest research indicates that the 
market will be valued at $9.63 billion by 
20291 (2024: $5.17 billion), growing at a 
CAGR of 13.2%. Corero operates within a 
significant segment of this overall market 
and estimates that the total addressable 
market for its principal SmartWall ONE 
solution exceeds $2.0 billion.
Compared to other modes of cybercrime, 
DDoS attacks are relatively low risk yet 
high impact, and malicious actors are 
increasingly becoming aware of the 
significant damage they can inflict on 
companies through DDoS strikes, both from 
a financial and reputational standpoint. 
As attacks become more complex, aided 
by increased access to AI and machine-
learning, organisations are continuing to 
seek comprehensive protection.
Demand for resilient and adaptable DDoS 
defence solutions remains high in North 
America, where Corero has its highest 
customer and sales footprint, while hactivism 
associated with Russia’s invasion of Ukraine 
has also exacerbated the DDoS attack threat 
level in Europe. Attacks are also widespread 
in other key regions where Corero is actively 
growing its influence – including the Middle 
East and Latin America.
Corero Network Security plc  Annual Report and Accounts 2024
24

OUTLOOK
Corero has entered FY 2025 in a strong 
position, well placed to build on a positive FY 
2024 and deliver on the Company’s near and 
long-term growth ambitions. So far in FY 2025, 
the Company has closed a number of key 
customer wins in the US and EMEA.
The combination of new sales team hires 
and recent product launches has created 
additional momentum to unlock considerable 
commercial opportunities across Corero’s 
existing customer base through both cross 
and upselling, alongside ongoing sales 
penetration in new territories.
Global demand for DDoS protection 
continues to grow, and the Group remains 
focused on elevating its status as an effective 
and affordable solutions provider capable of 
combatting the most hostile of DDoS attacks.
Looking ahead to the remainder of FY 
2025, Corero is committed to strengthening 
and expanding its alliance and regional 
partnerships to support new business pipeline 
and revenue growth.
Carl Herberger
CHIEF EXECUTIVE OFFICER
31 March 2025
1 	 https://www.corero.com/ddos-protection-
market-to-reach-9-billion-by-2029/ 
Corero Network Security plc  Annual Report and Accounts 2024
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FINANCIAL REVIEW
ACCELERATED GO-TO-MARKET 
STRATEGY DELIVERS STRONG 
ARR GROWTH AND 
PROFITABLE 2024
Chris Goulden
CHIEF FINANCIAL OFFICER
Corero Network Security plc  Annual Report and Accounts 2024
26

2020
2021
2022
2023
$4m
-$1.4m
$2.6m
$1.8m
2024
$2.5m
REVENUE
$24.6m
2024
$19.5m
2020
2021
2022
2023
$12.8m
$9.8m
$14.4m
$16.9m
2024
91.3%
2020
2021
2022
2023
85.1%
77.3%
87.2%
90.0%
2024
2020
2021
2022
2023
$1.4m
-$4.0m
$0.4m
-$0.2m
$0.6m
GROSS MARGIN
91.3%
PROFIT/(LOSS) 
BEFORE TAXATION
$0.6m
ARR (ANNUALISED  
RECURRING REVENUES)1
$19.5m19.5%
REVENUE AND GROSS MARGINS
Revenue in the year ended 31 December 
2024 increased by 10% to $24.6 million in 
FY 2024 (2023: $22.3 million).
ARR increased by 16% in the year to 
$19.5 million as at 1 January 2025, driven 
by growth in DDPaaS and software 
subscription orders (ARR at 1 January 2024: 
$16.9 million).
The Group’s overall gross margin improved 
in 2024 to 91% (2023: 90%) as hardware as a 
percentage of overall sales value continued 
to reduce.
PROFITABILITY
The Group reported a positive EBITDA of 
$2.5 million in the year ended 31 December 
2024 (2023: $1.8 million), trading at 10.2% 
margin (2023: 8% EBITDA margin), with 
gross margin improvement supported by 
more efficient use of operating expenses.
The Group reported a profit before tax of 
$0.6 million for the year (2023: loss $0.2 
million), with earnings per share 0.1 cents 
per share (2023: (0.0) cents per share).
1	
ARR is defined as the normalised annualised recurring revenues and includes recurring revenues from contract 
values of annual support, software subscription and from DDoS Protection-as-a-Service (‘DDPaaS’) contracts 
2	
EBITDA is defined as Earnings before interest, tax, depreciation, and amortisation.
EBITDA2 
$2.5m
2024
$24.6m
2020
2021
2022
2023
$20.9m
$16.9m
$20.1m
$22.3m
Corero Network Security plc  Annual Report and Accounts 2024
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2024
2020
2021
2022
2023
$8.4m
$7.6m
$5.3m
$4.4m
$5.2m
2024
$3.2m
2020
2021
2022
2023
$1.8m
$1.4m
$1.7m
$1.8m
R&D INVESTMENT
$3.2m
FINANCIAL REVIEW CONTINUED
NET CASH
$5.3m
Chris Goulden
CHIEF FINANCIAL OFFICER
31 March 2025
OPERATING EXPENSES AND R&D INVESTMENT
Underlying operating expenses 
excluding foreign exchange movements 
on intercompany balances and before 
depreciation and amortisation increased 
by $1.9 million from $18.0 million to $19.9 
million, primarily driven by an increased 
sales function and marketing activities to 
support the Group's accelerated go-to-
market strategy.
Underlying operating expenses included a 
depreciation charge of $0.4 million (2023: 
$0.3 million) and an amortisation charge for 
R&D of $1.6 million (2023: $1.5 million). 
During the year, the Group continued 
to focus on product innovation, with 
R&D investment of $3.2 million (2023: 
$1.8 million). The increase in capitalised 
development spend is driven by an 
increase in development output from the 
existing engineering team enhancing the 
SmartWall ONE solution capabilities as well 
as development of the DDoS Intelligence 
Service launched during the year. 
Additionally, the initial development of the 
CORE platform was completed in the year.
Capital expenditures in property, plant and 
equipment in the year were $0.8 million 
(2023: $0.8 million).
The charge for share-based payments 
amounted to $0.5 million in the year (2023: 
$0.2 million).
Net finance income for the year was $0.1 
million (2023: net cost $0.1 million).
OPERATING CASH AND CASH EQUIVALENTS
Overall, net cash generated from operating 
activities amounted to $3.1 million in 
the year (2023: $3.1 million). Cash and 
cash equivalents excluding the impact of 
exchange rates increased by $0.2 million 
(2023: decrease of $0.5 million). 
The Group remains debt-free and in a 
position to leverage its strong balance  
sheet to fund ongoing growth and 
innovation strategies.
Net cash, defined as cash at bank less  
total borrowings, at 31 December 2024  
was $5.3 million (2023: $5.2 million).
Corero Network Security plc  Annual Report and Accounts 2024
28

2024
$[X.X]m
2020
2021
2022
2023
$3.2m
-$0.6m
$1.7m
$2.2m
2024
2020
2021
2022
2023
$8.4m
$7.6m
$[X.X]m
$4.4m
$5.2m
2024
-$[X.X]m
2020
2021
2022
2023
$1.4m
-$4.0m
$0.4m
-$0.2m
Corero Network Security plc  Annual Report and Accounts 2024
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KEY STAKEHOLDERS SECTION 172 STATEMENT
The Directors are aware of their duty under Section 172 of the Companies Act 2006 to act in the way which they consider, in good 
faith, would be most likely to promote the success of the Company for the benefit of its members as a whole and, in doing so, 
to have regard (amongst other matters) to the: likely consequences of any decisions in the long-term interests of the Company’s 
employees; need to foster the Company’s business relationships with suppliers, customers and others; impact of the Company’s 
operations on the community and environment; Company’s reputation for high standards of business conduct; and need to act fairly 
as between members of the Company.
The Board reviewed and re-confirmed the Company’s key stakeholder groups during the year. These are set out below along with 
details of the forms of engagement undertaken by the Board:
Corero customers have a need for products and services that protect 
their online presence and operations from the increasing threat of DDoS 
attacks, and that provide intelligence to support greater availability. High 
availability of cloud services and applications are critical for modern 
businesses and institutions, their revenue streams rely on having internet 
connectivity protected from the threat of DDoS attacks.
CUSTOMERS 
Customers are the lifeblood of a successful 
growing business.
Shareholders are concerned with a broad range of issues including, but 
not limited to, Corero’s financial and operational performance, strategic 
execution, investment plans and governance.
Corero’s partners harness Corero’s market-leading technology to deliver 
customer success through creation of unique joint value propositions. 
They share insights into what current and future customers want, ultimately 
impacting product strategy and roadmaps and accelerating business growth 
through sales and marketing programmes, as well as technical training, often 
with a greater and more geographically dispersed sales force.
Employees seek opportunities for personal development and career 
progression, a culture of inclusion and diversity, compensation and benefits, 
and the ability to make a difference within Corero.
SHAREHOLDERS
Shareholders own the business. They are the 
providers of capital to grow and invest for 
future success.
PARTNERS
Partners are an extension of Corero, representing 
the Corero brand in the market, providing an 
additional route to market to scale the business.
EMPLOYEES
Corero employees are a key resource, dedicated 
to creating, selling and supporting solutions that 
protect Corero’s customers from the increasing 
threat of DDoS attacks.
WHY THEY MATTER
WHAT MATTERS TO THEM
STAKEHOLDER
STAKEHOLDER
STAKEHOLDER
STAKEHOLDER
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EVERY DAY CORERO IS INTERACTING WITH 
CUSTOMERS AND PROSPECTIVE CUSTOMERS 
– INCLUDING IN TENDERS, IN TECHNICAL 
PRESENTATIONS, IN QUOTING, IN INVOICING, 
IN DEPLOYMENT, AND IN AFTER-SALES AND 
ONGOING CUSTOMER SUPPORT.”
Executive Directors meet with customers 
throughout the year and provide 
feedback to the Board.
The Board reviews strategy and monitors 
performance during the year with the aim of 
meeting customers’ needs more effectively.
The Board receives regular competitor 
updates to understand Corero’s 
competitive performance and its strengths 
and weaknesses as regards meeting 
customer needs.
Corero employees interact with customers 
every day – including tenders, technical 
presentations, quoting, invoicing, deployment, 
and after-sales and ongoing customer support. 
Executive Directors meet with customers at 
regular intervals through key internal Corero 
events as well as industry-wide events. 
Communications such as annual 
reports, interim reports and notices of 
general meetings.
Investor roadshows, Stock Exchange 
announcements and press releases; 
www.corero.com.
The Board attends the AGM to answer 
questions from shareholders.
Executive Directors meet with investors 
and analysts regularly to ensure a strong 
dialogue is maintained. 
The Executive Directors and the Chairman 
meet with shareholders at investor 
roadshows and forums.
The Corero Partner Code of Conduct 
defines expectations of responsible 
business and behaviour.
The Board is provided with reports, 
including updates on performance and key 
partner issues. Senior management and 
CEO conduct quarterly review of progress 
of strategic partner relationships.
There are regular Board updates 
regarding partner relationships, 
development and engagement.
On an ongoing basis, the Board 
reviews Corero's key strategic 
partnerships.
The Board engaged in review of progress 
of strategic partner relationships.
There is regular Executive Director 
member engagement with Juniper, GTT 
and Akamai management.
Corero uses various activities and forums 
to foster participation in Group events, and 
invite opinions, questions and ideas.
Regular ‘All Hands’ meetings are held and 
engagement surveys are held twice each year. 
During 2024, Corero has hosted a number 
of employee webinars with experts 
covering topics such as mental health, 
employee well-being and mindfulness. 
Board members attend the employee 
‘All Hands’ meetings where appropriate 
as well as other events like the Sales Kick 
Off event.
Performance appraisal and objective 
setting processes are performed annually.
CORERO’S ENGAGEMENT
THE BOARD’S ENGAGEMENT
KEY EVENTS IN THE YEAR
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Corero Network Security plc  Annual Report and Accounts 2024

PRINCIPAL RISKS AND UNCERTAINTIES
THE GROUP HAS A
NUMBER OF PRINCIPAL
RISKS AND UNCERTAINTIES
REVENUE GROWTH 
Corero’s strategy outlined on page 3 depends on 
delivering revenue growth to meet these ambitions. 
Clearly, higher order intake and related revenue 
growth provides the opportunity for Corero to 
invest further in its future. Revenue growth is highly 
important to deliver profitable growth for the 
business. Conversely, lower sales growth reduces the 
Company’s cash resources which could impact the 
Company’s investment in sales and marketing and 
product development and its other associated goals.
To deliver this order intake and, revenue growth, Corero 
needs to identify, meet and exceed customer needs. 
If Corero is not successful in identifying customer 
prospects with a business need Corero can solve, 
or developing go-to-market partner and channel 
partner relationships which generate revenue, this will 
compromise growth plans and success.
To be successful Corero is:
•	 Targeting service providers and enterprise buyers 
that need scalable, real-time DDoS protection to 
ensure business continuity, stay ahead of evolving 
threats, and support growing connectivity demands
•	 Aligning lead generation, sales, and product 
development with the needs of our targets, backed 
by analyst insights and market research
RISK MANAGEMENT
The Company operates a risk assessment process, which is 
embedded in day-to-day management and governance processes. 
As part of the annual planning and budgeting process, Corero 
management document the significant risks identified, the 
probability of those risks occurring, their potential impact and the 
plans for managing and mitigating each of those risks.
The Board reviews the annual risk assessment including an annual 
assessment of the effectiveness of the Group’s internal control 
system, comprising financial, operational and compliance controls, 
to ensure that the Company’s risk management framework 
identifies and addresses all relevant risks in order to execute and 
deliver the Company’s strategy.
The Directors are responsible for the Group’s system of internal 
control and for reviewing its effectiveness, whilst the role of 
management is to implement policies on risk management and 
control. Corero’s system of internal control is designed to manage, 
rather than eliminate, the risk of failure to achieve the Company’s 
business objectives and can only provide reasonable, and not 
absolute, assurance against material misstatement or loss.
The Group operates a series of controls to meet its needs. These 
controls include, but are not limited to, the annual strategic 
planning and budgeting process, a clearly defined organisational 
structure with authorisation limits, reviews by senior management 
of monthly financial and operating information including 
comparisons with budgets, and forecasts to the Board. Given the 
size of the Group, the Board has concluded it is not appropriate 
to establish a separate, independent internal audit function. The 
Board will keep this under review.
The Audit, Risk and Compliance Committee (‘ARCC’) reviews 
the effectiveness of internal controls. The ARCC receives reports 
from management and observations from the external auditors 
concerning the system of internal control and any material control 
weaknesses. Significant risk issues, if any, are referred to the Board 
for consideration. The Corero Risk Register, Auditor’s report, 
assessment of the effectiveness of the internal control system and 
key judgements report for the Annual Report and Accounts are 
tabled and reviewed by the ARCC.
Corero Network Security plc  Annual Report and Accounts 2024
32

TECHNOLOGY CHANGE AND INNOVATION
The DDoS mitigation market is competitive 
and characterised by changes in technology, 
customer requirements and new product 
introductions and improvements. Cybersecurity 
and DDoS attacks are constantly evolving and 
changing as attackers develop new methods and 
tools to evade defences.
Corero is focused on its chosen markets and 
delivering continuous innovation by adding new 
DDoS attack defences and new machine learning 
and artificial intelligence capabilities, and striving 
to provide market-leading solutions to secure 
customers from the threat of DDoS attacks.
MARKET AWARENESS
Corero is a leader in adaptive, cost-effective 
DDoS protection. Competing against larger, 
established vendors, Corero differentiates through 
real-time mitigation, seamless integration, and a 
commitment to service availability. To accelerate 
market awareness and drive growth, Corero 
continues to invest in targeted digital marketing, 
lead generation, and strategic brand initiatives. 
By strengthening the Company’s presence in key 
markets, Corero empowers more organisations 
to defend against evolving threats - ensuring 
resilience, security, and peace of mind.
OTHER NON-PRINCIPAL RISKS AND 
UNCERTAINTIES
There are a multitude of other risks and 
uncertainties that face companies like Corero, 
these include: risks and uncertainties associated 
with local legal requirements, political and 
geographic risk, the enforceability of laws and 
contracts, changes in tax laws, terrorist activities, 
wars and invasions, natural disasters and other 
types of health epidemics.
PEOPLE
To grow and address the challenges resulting 
from technology change and innovation in the 
DDoS protection market, the Company needs 
to retain and recruit the required sales, business 
development, and software development skills. 
Corero operates in a high-growth cyber security 
market and if it is unable to recruit and retain the 
right skills this will compromise growth plans. 
Consequently, Corero targets paying salaries in 
the upper quartile for comparable positions.
Corero Network Security plc  Annual Report and Accounts 2024
33
Overview
Strategic Report
Governance
Financial Statements
Corporate Directory

ENVIRONMENTAL, SOCIAL AND GOVERNANCE REPORT
We treat customers, partners, suppliers and employees in a professional, 
courteous and honest manner.
We are committed to complying with ESG requirements and Corero is 
dedicated to improving the security and availability of the internet for all.
CORERO ASPIRES TO CARRY
OUT ITS BUSINESS TO THE
HIGHEST ETHICAL STANDARDS
In common with most intellectual property 
technology businesses, we know that the 
expertise, experience, and passion of our 
employees is genuinely what makes our 
products and services market-leading. 
For example, Corero’s Security Operation 
Centre (‘SOC’) comprises a team of highly 
experienced security analysts whose 
role it is to assist our customers’ IT and 
security teams to mitigate the growing 
number of increasingly sophisticated 
DDoS attacks. This service and customer 
support offering is therefore an important 
competitive differentiator. 
Corero’s Engineering and Product teams 
work very closely to evolve the Group’s 
product offering and ensure that Corero’s 
product suite is at the forefront of 
technology available to our customers. 
With developments of the CORE ecosystem 
during FY 2024, there has been significant 
development in this space. 
Corero prides itself on being a great place 
to work – we empower our employees to 
develop and grow, and held a number of 
employee well-being seminars during 2024 
to support our teams, as well as conducting 
bi-annual employee engagement surveys to 
understand the views of employees. 
CORERO’S APPROACH TO 
RESPONSIBLE BUSINESS IN 
SOCIETY
Corero recognises that long-term success 
is underpinned by good relations with its 
key stakeholders, both external (partners, 
suppliers, customers, shareholders, 
regulators and others) and internal 
(employees). As part of Corero’s annual 
planning and budgeting process, the 
Company identifies its stakeholders and 
their respective needs, interests and 
expectations. In addition, the strategy for 
engaging with these stakeholder groups is 
formulated and implemented.
Corero values feedback from its 
stakeholders and proactively endeavours 
to address any matter identified. Feedback 
is gathered from: customers and partners 
relating to Corero’s products and services 
in an ongoing, continuous manner; 
shareholders, through investor relations 
roadshows; and employees as a part of 
regular ‘All Hands’ meetings.
During FY 2024, Corero has engaged closely 
with customers, partners, shareholders 
and investors through a number of events 
throughout the year. Invited customers and 
partners attended Corero’s inaugural Sales 
Leadership Summit in May 2024, while Carl 
Herberger and Chris Goulden met with 
shareholders and investors at a number 
of investor events including the Planet 
Microcap conference in Las Vegas, and the 
Cannacord Annual Growth Summit in Boston 
and London. 
EMPLOYEES, DIVERSITY AND 
INCLUSION AND EMPLOYEE 
INTERACTION
Corero’s employees are the Group’s 
most important asset. The continued and 
sustained development of the Company 
relies on its ability to retain and attract 
high calibre employees and Corero is 
proud to have many experienced and 
talented employees. 
CORERO’S CULTURE 
AND VALUES
We seek to live our culture and 
values every day, in a dynamic 
and professional manner.	
Our defined values are: 
Customers First
Technology Leadership 
& Innovation
Operational Excellence 
Integrity
Employee 
Empowerment 
& Team Work
Corero Network Security plc  Annual Report and Accounts 2024
34

The Corero Equal Opportunities Policy 
ensures that all job applicants and 
employees are treated fairly, no matter 
what age, race, colour, gender, religion 
or beliefs, sexual orientation, marital or 
partner status, ethnic origin or community, 
disability, and without favour or prejudice. 
We are committed to applying this policy 
throughout all aspects of employment, 
recruitment and selection, training, 
development and promotion.
The Corero Equal Opportunity Policy has 
been developed to maintain the following 
policy objectives:
	•
To provide a safe and welcoming 
environment, in which individuals are 
valued, included and respected.
	•
To advance equality of opportunity.
	•
To eliminate unfair discrimination.
	•
To foster good relations between 
different groups of people.
We are an increasingly international, 
multi-cultural and diverse organisation. 
For example, a number of our UK-based 
software engineers are drawn from local 
universities but also sponsored on EU 
skilled-migrant visas. Inclusion is the 
practice of providing everyone with equal 
access to opportunities and resources. We 
believe employees find an environment 
of understanding and respect at Corero, 
where voices and opinions are heard and 
carefully considered. This is made easier by 
the relatively flat hierarchy and agile nature 
of the business and the values we share. 
Corero’s global management team meets 
face-to-face at least four times each year to 
focus on strategic goals and performance, 
and to drive results across the organisation. 
Employees are regularly informed of 
matters concerning their interest and the 
financial factors affecting the Company. The 
Company uses company-wide forums such 
as All Hands meetings to communicate 
matters as well as team and individual 
meetings. Employees are offered a number 
of benefits such as an extra day of holiday 
on their birthday, a comprehensive leave 
policy, as well as private medical insurance, 
enhanced parental leave and remote and 
flexible working arrangements. 
ENVIRONMENTAL 
SUSTAINABILITY
Corero has identified the following UN 
Sustainable Development Goals (‘SDGs’) 
most applicable to its activities listed in the 
table below.
Corero is committed to promoting 
sustainability. We aim to lead, follow and 
to promote good sustainability practice, 
to carry out our operations in a way which 
manages and minimises any adverse 
environmental impacts from our activities. 
For many years Corero has operated a 
flexible remote working policy before remote 
working was necessitated by the COVID-19 
pandemic. We aim to mitigate unnecessary 
travel and the impact on climate change.
Our products are used by thousands 
of businesses throughout the world to 
protect against disruptions that could have 
adverse economic, health, well-being and 
environmental consequences. Disruptions 
may emanate from individuals, groups, 
corporates or state-sponsored actors. 
Corero is committed to reducing our 
resource consumption where possible. 
Furthermore, employees are encouraged 
to be environmentally aware. For 
example, Corero encourages the reuse 
or recycling of office waste, including 
paper, packaging, computer supplies and 
redundant equipment. Company cars are 
not provided. Wherever possible we seek 
to ensure that waste materials are disposed 
of in an environmentally safe manner and 
in accordance with regulations. We aim 
to provide materials such as marketing 
collateral in a paperless, digital way.
ETHICAL BUSINESS
Corero is committed to the fundamental 
values of integrity, transparency and 
accountability. We have a zero-tolerance 
policy with regard to bribery and corruption 
with reporting mechanisms in place. 
Corero adopts and enacts an Ethics and 
Anti-Bribery Policy to record the ethical 
way in which we conduct business and 
to make our ethical standards clear to 
everyone, including those with whom we do 
business, which includes resellers, agents 
and distributors as well as our customers. 
Corero provides training to all its employees 
on Anti-Bribery and Corruption.
STRATEGIC REPORT SIGN-OFF
In accordance with Section 414D(1) of The 
Companies Act 2006, the Strategic Report on 
pages 26 to 41 is signed by order of the Board.
Emma Rockey
COMPANY SECRETARY
31 March 2025
UN SD Goals
How Corero contributes
Good Health 
and Well Being
Ensuring healthy lives and promoting well-being at all ages is essential to sustainable 
development. We are committed to our people and their well-being and are proud of our 
supportive, collaborative culture and strong values.
Quality Education
Obtaining a quality education is the foundation to improving people’s lives and sustainable 
development. Corero’s DDoS protection is favoured by many research and educational 
network customers as a secure way to deliver and promote their objectives.
Decent Work and 
Economic Growth
Sustained and inclusive economic growth can drive progress, create decent jobs for all and 
improve living standards. Corero’s DDoS protection protects the remote working practices, 
being a key feature of post-COVID-19 pandemic ways of working for most employers.
Peace, Justice and 
Strong Institutions
Conflict, insecurity, weak institutions and limited access to justice remain a great threat to 
sustainable development. Corero’s solutions provide cyber protection against nefarious 
activities from individuals, crime and state-sponsored terrorist groups. Corero’s vision is an 
internet connected world where every business, application and individual is protected from 
DDoS attacks.
Corero Network Security plc  Annual Report and Accounts 2024
35
Overview
Strategic Report
Governance
Financial Statements
Corporate Directory

Andrew Miller
NON-INDEPENDENT 
NON-EXECUTIVE DIRECTOR
Jens Montanana
NON-EXECUTIVE CHAIRMAN
Richard Last
INDEPENDENT 
NON-EXECUTIVE DIRECTOR*
Peter George
INDEPENDENT 
NON-EXECUTIVE DIRECTOR
APPOINTED
6 August 2010
22 May 2008
3 January 2019
1 June 2020
BACKGROUND & EXPERIENCE
Jens has spent the majority 
of his over 30-year career in 
the technology industry with 
considerable operational and 
commercial experience in 
the resale and distribution of 
information technology hardware 
and software solutions. He is the 
founder and CEO of Datatec 
Limited, established in 1986 and 
which listed on the Johannesburg 
Stock Exchange in 1994. Between 
1989 and 1993 Jens served as 
Managing Director and Vice-
President of US Robotics (UK) 
Limited, a wholly owned subsidiary 
of US Robotics Inc., which was 
acquired by 3Com. In 1993, he 
co-founded US start-up Xedia 
Corporation in Boston, an early 
pioneer of network switching and 
IP bandwidth management, which 
was subsequently sold to Lucent 
Corporation in 1999 for $246 
million. He has previously served 
on the boards and sub-committees 
of various public companies.
Richard has over 20 years’ 
senior experience in information 
technology having worked at 
board level for a number of 
publicly quoted and private 
companies in the technology 
sector. He is a Fellow of the 
Institute of Chartered Accountants 
in England and Wales (‘FCA’).
*Richard Last is a Corero 
shareholder and has been a 
Non-executive Director of the 
Company for over 10 years; 
his independence has been 
considered by the Board. 
The Board is satisfied that 
Richard Last operates in an 
independent manner and 
is independent.
Peter George is a US-based 
executive with over 30 years’ 
experience in the IT networking 
and cybersecurity industry.
He has a successful track record 
as CEO of leading IT network and 
security companies and provides 
sales and marketing leadership 
experience to the Board.
Until late 2024, Peter was the CEO 
of Evolv Technology, a US-based 
leader in human security screening. 
Prior to that he was President and 
CEO of empow cybersecurity, a 
market innovator in AI, machine 
learning and advanced security 
analytics. Prior to empow, between 
2008 and 2017, he was President 
and CEO of Fidelis Cybersecurity, 
a leading US-based Advanced 
Threat Defense business. Before 
joining Fidelis, Peter was President 
and CEO of Crossbeam Systems, 
a market leader in Unified Threat 
Management. Prior to that he was 
the President of Nortel Networks’ 
enterprise business where he was 
responsible for growing a $2 billion 
and 5,000 employee voice and 
data business in EMEA.
Andrew Miller was until 31 May 
2020 the CFO of the Company. He 
was until February 2025, CFO of 
Mycom, a telecoms SaaS provider 
and prior to that up to January 
2022 the CFO and COO of C5 
Capital Limited, an investment 
firm investing in the secure data 
ecosystem including cybersecurity, 
cloud infrastructure, data analytics 
and space, and CFO of the 
Haven Group, a private equity 
backed cyber security services 
provider. Prior to joining Corero, 
Andrew was with the Datatec 
Limited group in a number of 
roles between 2000 and 2009 
including the Logicalis Group 
Limited (‘Logicalis’) Operations 
Director and Corporate Finance 
and Strategy Director. Prior to 
this, Andrew gained considerable 
corporate finance experience 
in London with Standard Bank, 
West Deutsche Landesbank and 
Coopers & Lybrand. Andrew 
trained and qualified as a 
chartered accountant and has a 
bachelor’s degree in commerce 
from the University of Natal, South 
Africa. Andrew is a Chartered 
Accountant with over 20 years’ 
experience in the technology 
industry.
CURRENT APPOINTMENTS
CEO of Datatec Limited and 
Director of various Datatec Limited 
subsidiary companies.
Director of Tribal Group plc, a 
technology company, and Iomart 
Group Plc, a cloud solutions 
company. Richard is also a Director 
of a number of private companies.
None.
None.
BOARD OF DIRECTORS
Corero Network Security plc  Annual Report and Accounts 2024
36

Carl Herberger
CHIEF EXECUTIVE OFFICER
Rob Scott
INDEPENDENT 
NON-EXECUTIVE DIRECTOR
Nomination Committee
Remuneration Committee
Audit, Risk and  
Compliance Committee
Chair of Committee
17 April 2024
1 January 2024
6 September 2013
15 July 2024
Rob Scott currently serves as 
Managing Director of Strategic 
Relationships for Venture Lending 
at Avid Bank, leveraging his 
extensive industry expertise and 
strong connections with venture 
capital and private equity firms. 
He is also the co-founder of 
Let’s Go Racing, a consultancy 
that forges winning partnerships 
between innovative brands 
and motorsport teams to drive 
commercial success. Additionally, 
Rob sits on the board of Altaeros 
- an autonomous aerostat 
supporting both government 
and commercial applications 
- and serves as Chairman and 
Board Member at Trilio, a next-
generation data protection and 
recovery solution for scale-out 
cloud architectures. He is also a 
member of the Customer Advisory 
Board at Fortinet, a global leader 
in cybersecurity.
Previously, Rob served as CEO 
of Cygilant, Inc., a cyber security 
services provider that specialised 
in helping organisations 
hunt, detect, and respond to 
cyberthreats. After its acquisition 
by SilverSky, he transitioned to the 
role of Chief Strategy Officer with 
a focus on strategic partnerships. 
Rob also led Bradford Networks 
-a network security company later 
acquired by Fortinet -and Clique 
Intelligence, a software platform 
for data sharing and collaboration. 
Earlier in his career, he held 
the role of Vice President of 
Worldwide Sales and Marketing at 
HP ProCurve Networking, joining 
through its 2008 acquisition of 
Colubris Networks Inc., where he 
served as President and CEO.
Carl Herberger, CEO of Corero 
Network Security, brings over 25 
years of cybersecurity leadership 
experience. As an internationally 
recognised expert, he has held 
executive roles at top security firms 
including Radware, Evolve IP, Allied 
InfoSecurity, and most recently as 
Principal Security Consultant and 
virtual CISO.
Among his many achievements, 
Carl received the Technology 
Executive of the Year award in 
2019 and helped establish the US 
Air Force’s first cyber warfare unit 
during his time as an intelligence 
officer. As CEO, he leverages 
his deep expertise across all 
facets of cybersecurity to lead 
Corero’s corporate strategy and 
help Corero’s customers manage 
risk and build resilient systems 
capable of withstanding today’s 
cyber threats.
Ashley Stephenson (‘CTO/CPO’) 
first joined Corero Network 
Security as Executive Vice 
President of the Network Security 
division, with responsibility for 
product and solution strategy in 
March 2012, and was appointed 
Chief Executive Officer of Corero 
in January 2013. In May 2019, after 
the successful introduction of the 
Company’s SmartWall product line, 
he transitioned to the role of CTO 
and in 2025 has also assumed the 
role of CPO. As a global IT industry 
executive and internet technology 
entrepreneur, Ashley has worked 
in the United States, Europe and 
Asia. His previous experience 
includes: CEO of Reva Systems, 
and CEO of Xedia Corporation. 
Ashley began his career at IBM 
Research & Development in the 
UK. He is a graduate of Imperial 
College, London with a degree in 
Physics and is an Associate of the 
Royal College of Science.
Emma Rockey joined Corero as 
Group Financial Controller in 
August 2023, and brings nearly 
20 years of finance, technical 
and governance expertise to 
the Group. Emma qualified as a 
chartered accountant with EY in 
2008 and subsequently moved 
to Melbourne, Australia with the 
firm. Emma spent six years at SEEK 
Ltd, an ASX50 global and highly 
acquisitive group in a number 
of senior financial reporting and 
governance roles during a time 
when the group was scaling and 
grew to be a $1 billion company. 
Subsequent to this, Emma spent 
three years in leadership roles 
at PKF, followed by two years at 
newly listed Control Bionics Ltd, 
building their finance team from 
the ground up following listing on 
the ASX. Emma returned to the UK 
in 2022 and spent time at Acential 
plc before joining Corero. 
Emma is a member of the 
Institute of Chartered Accountants 
of Scotland.
Managing Director of Avidbank 
Holdings Inc, Chairman and 
Director of Trilio Data Inc.
Director of Trustle Inc, 
a technology company. 
Director of Eyealike, Inc. 
and StepVest LLC.
Director of Corero Network 
Security (UK) Ltd & Corero Group 
Services Ltd.
Ashley Stephenson
CHIEF TECHNOLOGY OFFICER, 
CHIEF PRODUCT OFFICER
Emma Rockey CA
COMPANY SECRETARY
Corero Network Security plc  Annual Report and Accounts 2024
37
Overview
Strategic Report
Governance
Financial Statements
Corporate Directory

CHAIRMAN’S CORPORATE 
GOVERNANCE INTRODUCTION
BOARD COMMITMENT 
TO GOVERNANCE
The Board is committed to continue 
to uphold high standards of corporate 
governance, enhancing shareholder value, 
and engaging in an open and transparent 
manner with all of the Group’s stakeholders.
The Board therefore supports and is 
committed to the principles of the QCA 
Corporate Governance Code. Details of our 
governance processes and procedures are 
set in out in the following pages.
BOARD LEADERSHIP AND 
EFFECTIVENESS 
The Board recognises that to remain 
effective it must ensure that it has the right 
balance of skills, experience, knowledge and 
independence to enable it to discharge its 
duties and responsibilities. The Directors 
believe in the necessity for open debate in 
the boardroom and consider that existing 
Board dynamics and processes encourage 
honest, constructive and open debate 
with the Executive Directors. We conduct 
internal Board evaluation reviews to 
monitor that the Corero Board is operating 
effectively. In June 2024, an internal Board 
effectiveness evaluation was conducted 
with a range of areas covered such as vision 
and strategy, communications, meeting 
stakeholder expectations, Board skills and 
balance, and overall view of performance 
and development. It was pleasing that all 
aspects of the Board evaluation showed 
improvement from the 2023 assessment, 
with highlights reflecting how the current 
Board is working cohesively as a group and 
with the executive management team. The 
Board also recognises that diversity can be 
improved across our members.
OUR CULTURE AND VALUES
We recognise the importance of our values 
and how we live them within our culture. 
The Board undertakes informal enquiries 
of employees to ensure our values are 
upheld and promoted to maintain a healthy 
corporate culture. Board meetings held at 
Corero’s office locations in the UK and US 
provide the Board with the opportunity to 
informally interact with employees.
BOARD COMPOSITION
Carl Herberger was appointed CEO and 
joined the Board of Directors on 1 January 
2024. Following Carl’s appointment to 
the Board, I stepped back from the role 
as Executive Chairman of the Company 
and returned to my role as Non-Executive 
Chairman, effective 1 January 2024. 
Rob Scott joined the Board of Directors in 
April 2024 and brings a wealth of experience 
across cyber security internationally, sales 
& marketing, people and governance. Phil 
Richards resigned from the Board effective 
12 July 2024.
STAKEHOLDER ENGAGEMENT
We seek to maintain an open dialogue with 
all stakeholders including shareholders, 
customers, partners, suppliers and our 
employees. Details of our stakeholders 
along with the forms of engagement 
undertaken by the Board are set out on 
pages 26 to 27.
In this context, I would like to give my 
continued thanks to our institutional 
and private investors for their continued 
support; to all wider stakeholders including 
our customers, strategic partners and 
suppliers; and thank all our employees for 
their determination, professionalism and 
commitment to Corero.
LOOKING FURTHER AHEAD
Corero has delivered a solid performance in 
2024 with growth reflected across all of our 
key metrics. Under the strong leadership 
of Carl Herberger as CEO, Corero has 
improved sales execution with an enhanced 
sales team and continued development 
of the dynamic product suite. The Board 
maintains its confidence that Corero is 
well positioned to capitalise on the strong 
forecast growth expected in the DDoS 
market. We will continue to invest in 2025 
to deliver our strategic goals with the 
objective of creating long-term value for 
all our stakeholders.
Jens Montanana
CHAIRMAN
31 March 2025
THE BOARD IS COMMITTED TO 
CONTINUE TO UPHOLD HIGH STANDARDS 
OF CORPORATE GOVERNANCE, 
ENHANCING SHAREHOLDER VALUE, 
AND ENGAGING IN AN OPEN AND 
TRANSPARENT MANNER WITH ALL OF 
THE GROUP’S STAKEHOLDERS.”
Jens Montanana
CHAIRMAN
Corero Network Security plc  Annual Report and Accounts 2024
38

QCA CODE COMPLIANCE
As an AIM-listed company, Corero adopts the principles of the Quoted Companies Alliance Corporate Governance Code (the ‘QCA 
Code’). The QCA Code identifies ten principles to be followed in order for companies to deliver growth in long-term shareholder value, 
encompassing an efficient, effective and dynamic management framework accompanied by good communication to promote confidence 
and trust. The following explains how Corero follows those QCA Code principles:
1
Establish a strategy and 
business model to promote 
long-term value for 
shareholders
Corero’s strategy is focused on being the leader in real-time, 
high performance DDoS protection and scaling the business for 
profitability through revenue growth. 
Corero’s product strategy is prevention of downtime in the 
event of a DDoS attack, eliminating the need for operator 
intervention, and enabling service providers to deliver added 
value to their customers by offering DDoS protection services. 
For more information please 
see pages 4 and 5.
2
Seek to understand and 
meet shareholder needs and 
expectations
The CEO and CFO communicate regularly with shareholders, 
investors and analysts, including at our full year and half-yearly 
results roadshows. The full Board is available at the AGM to 
communicate with shareholders.
For more information please 
visit: http://www.corero.com/
about/investor-relations
3
Take into account wider 
stakeholder and social 
responsibilities and their 
implications for long-term 
success
Shareholders, our customers, partners and employees are 
our most important stakeholders. We engage with these 
communities via regular communications in our day-to-day 
activities, and via formal feedback requests.
For more information please 
see page 30 and 31.
4
Embed effective risk 
management, considering both 
opportunities and threats, 
throughout the organisation
Ultimate responsibility for risk management rests with the 
Board. Day-to-day management of risk is managed through 
the strong processes and controls in place throughout the 
organisation, and the positive culture embedded across the 
Company. 
For more information please 
see pages 32 and 33.
5
Maintain the Board as a well-
functioning, balanced team led 
by the Chair
The Board has a well-established Chair along with three 
established Committees: Audit, Risk and Compliance 
Committee; Nomination Committee; and Remuneration 
Committee. The composition and experience of the Board is 
reviewed primarily by the Nomination Committee.
For more information please 
see pages 36, 37 and 39 – 45.
6
Ensure that between them the 
Directors have the necessary 
up-to-date experience, skills 
and capabilities
The Board is satisfied that its current composition includes 
an appropriate balance of skills, experience and capabilities, 
including experience of the cyber security market, international 
markets and growth organisations. 
For more information please 
see pages 36, 37 and 39 – 45.
7
Evaluate Board performance 
based on clear and relevant 
objectives, seeking continuous 
improvement
The Board considers the effectiveness and relevance of its 
contributions, any learning and development needs and the 
level of scrutiny of the senior management team. An annual 
Board effectiveness review is undertaken to enable the Board to 
stand back and assess its strengths and areas for development.
For more information please 
see page 42.
8
Promote a corporate culture 
that is based on ethical values 
and behaviours
Corero recognises the importance of culture and values across 
the organisation, and the importance that employees play in 
upholding the Company’s values of Customers first; Technology 
leadership & innovation; Operational excellence; and Integrity. 
These values are reinforced via training and performance 
management.
For more information please 
see pages 34 and 35.
9
Maintain governance 
structures and processes 
that are fit for purpose and 
support good decision-making 
by the Board
The Board is responsible for the Group’s overall strategic 
direction and management, and for the establishment and 
maintenance of a framework of delegated authorities and 
controls to ensure the efficient and effective management 
of the Group’s operations. The Board is satisfied that the 
necessary controls and resources exist within the Company to 
enable these responsibilities to be met.
For more information please 
see pages 40 – 45.
10
Communicate how the 
Company is governed and 
is performing by maintaining a 
dialogue with shareholders and 
other relevant stakeholders
The investors section of our website includes our Annual 
Report, results, presentations, notice of AGM and results of the 
AGM and general meetings.
For more information please 
visit: http://www.corero.com/
about/investor-relations
Corero Network Security plc  Annual Report and Accounts 2024
39
Overview
Strategic Report
Governance
Financial Statements
Corporate Directory

CORPORATE GOVERNANCE REPORT
BOARD COMPOSITION AND RESPONSIBILITIES
The Board sets Corero’s overall strategic direction, reviews management performance and ensures that the Company has the necessary 
financial and human resource in place to meet its objectives. Operational management of the Company is delegated to the Chief 
Executive Officer. The Chairman is responsible overall for adherence to the QCA Code, and ensures this through effective chairing of Board 
meetings, and regular review of the Group’s governance processes and procedures.
The Board comprises the Non-executive Chairman, three independent Non-executive Directors, one non-independent Non-executive 
Director and two Executive Directors whose Board and Committee responsibilities are set out below:
Non-executive/  
Executive Director
Board
Audit, Risk and 
Compliance Committee
Remuneration Committee
Nomination  
Committee
Jens Montanana
Non-executive
Chairman
Member
Chairman
Peter George1
Non-executive
Member
Member
Member
Richard Last2
Non-executive
Member
Member
Member
Member
Andrew Miller3
Non-executive
Member
Chairman
Member
Robert Scott4
Non-executive
Member
Member
Chairman
Member
Ashley Stephenson
Executive
Member
Carl Herberger5
Executive
Member
1 Stepped down from Audit, Risk and Compliance Committee on 30 January 2024.
2 Chairman of Audit, Risk and Compliance Committee until 7 June 2024.
3 Appointed as Chairman of Audit, Risk and Compliance Committee on 7 June 2024.
4 Appointed Director on 17 April 2024. Appointed Chairman of Remuneration Committee on 7 June 2024.
5 Appointed Director on 1 January 2024.
One-third of all Directors are subject to annual reappointment by shareholders, as well as any Director appointed to the Board in the 
period since the last AGM, and any Non-executive Director whose tenure is more than nine years or whose independence is the subject of 
Board judgement. Jens Montanana, Peter George and Richard Last will be offering themselves for re-election at the forthcoming AGM. 
The Corero Board members’ biographies and their relevant experience, capabilities and skills and are set out on pages 36 and 37.
BOARD BALANCE AND INDEPENDENCE
The composition of the Board is reviewed regularly. Appropriate training, briefings, and inductions are available to all Directors on 
appointment and subsequently as necessary, taking into account existing qualifications and experience.
The Board is satisfied that, between the Directors, it has an effective and appropriate balance of skills and experience, including 
operational, commercial and technology expertise and experience. All members of the Board have more than 20 years’ technology 
experience through investing in and working for a range of companies from start-ups to large, established technology companies, with 
complementary financial, commercial, sales and marketing skills.
The skills and experience of the Board are summarised in the table below:
Technology
Cyber security
Sales and 
marketing
People
International
Governance
Finance
Jens Montanana
Peter George
Richard Last
Andrew Miller
Robert Scott
Ashley Stephenson
Carl Herberger
Corero Network Security plc  Annual Report and Accounts 2024
40

The Board is cognisant of the lack of gender 
and age diversity and plans to address 
this as the Company grows through its 
recruitment policy.
All Directors are able to take independent 
legal advice in relation to their duties, if 
necessary at the Company’s expense. In 
addition, the Directors have direct access 
to the advice and services of the Company 
Secretary. The Directors keep their skills up 
to date through a combination of their other 
roles (if applicable), attending appropriate 
training courses and seminars funded 
by the Company if appropriate, and by 
reading widely.
There are no external advisers to the 
Board or any of its Committees, other than 
the Company’s joint brokers (Canaccord 
Genuity and Zeus).
Corero’s Non-executive Chairman, Jens 
Montanana, is a material shareholder with 
an equity interest in Corero of 36.57% at 
26 March 2025. His interests are strongly 
aligned with all shareholders.
Richard Last is a Corero shareholder with a 
0.88% equity interest in Corero at 26 March 
2025 and has been a Non-executive Director 
of the Company for over 10 years. His 
independence has been considered by the 
Board. The Board is satisfied that Richard 
Last operates in an independent manner 
and is independent.
EMPLOYMENT AND SERVICE 
AGREEMENTS 
The Director employment and service 
contracts are summarised below:
	•
Carl Herberger and Ashley Stephenson, 
both Executive Directors, have 
employment agreements which provide 
for the payment of six months’ base 
salary if the agreement is terminated by 
the Company without cause.
	•
The Non-executive Directors’ letters of 
appointment are for 12-month terms and 
provide that the appointment may be 
terminated by either party giving to the 
other not less than three months’ notice.
Non-executive Directors, per their letters 
of appointment, have a time commitment 
to the Company of not less than 12 days 
per annum including the attendance of 
Board meetings and the Company AGM. 
In addition, Non-executive Directors are 
expected to devote appropriate preparation 
time ahead of each meeting.
BOARD RESPONSIBILITIES
The Board meets, virtually or in person, 
on average once a quarter; additional 
meetings or conference calls are held as 
required. Each Director is provided with 
sufficient information to enable them to 
consider matters in good time for meetings 
and enable them to discharge their 
duties properly.
The Board also ensures that the principal 
goal of the Company is to create 
shareholder value, while having regard 
to other stakeholder interests, and takes 
responsibility for setting the Company’s 
values and standards.
The Board has a formal schedule of 
matters reserved to it for consideration 
and approval. These include:
	•
Strategy and management
	•
Responsibility for the overall strategy and 
management of the Company
	•
Approval of strategic plans and budgets 
and any material changes to them
	•
Approval of the acquisition or disposal 
of subsidiaries and major investments, 
projects and contracts
	•
Changes relating to the Company’s 
capital structure
	•
Delegation of the Board’s powers 
and authorities
FINANCIAL MATTERS AND 
INTERNAL CONTROLS
	•
Oversight of the Company’s operations 
ensuring competent and prudent 
management, sound planning and 
maintenance of adequate accounting 
and other records.
	•
Approval of the annual and 
interim financial statements and 
accounting policies.
	•
Approval of the dividend policy.
	•
Ensuring an appropriate system of 
internal control and risk management 
is in place.
CORPORATE GOVERNANCE 
	•
Review of the management structure and 
senior management responsibilities.
	•
With the assistance of the 
Remuneration Committee, approval of 
remuneration policies.
	•
Consideration of the independence of 
the Non-executive Directors.
	•
Receiving reports and feedback from the 
Company’s shareholders.
The Board receives regular briefings on 
the Company’s performance (including 
commentary and analysis), key issues and 
risks affecting the Company’s business.
The Company maintains liability insurance 
for its Directors and Officers. The Company 
has also entered into indemnity agreements 
with the Directors, in terms of which the 
Company has indemnified its Directors, 
subject to the Companies Act limitations, 
against any liability arising out of the 
exercise of the Directors’ powers, duties 
and responsibilities as a Director or Officer.
In the year ended 31 December 2024, 
the Board met, virtually or physically, on 
five scheduled occasions; further meetings 
and conference calls were held as and 
when necessary. Details of Directors’ 
attendance at scheduled meetings in the 
year to 31 December 2024 are shown in 
the table below:
Meetings  
attended
Jens Montanana
5/5
Peter George
5/5
Richard Last
5/5
Andrew Miller
5/5
Rob Scott
3/3
Ashley Stephenson
5/5
Carl Herberger
5/5
Phil Richards
3/3
DIRECTORS’ CONFLICT  
OF INTEREST
The Company has effective procedures in 
place to monitor and deal with conflicts of 
interest. The Board is aware of the other 
commitments and interests of the Directors, 
and changes to these commitments and 
interests are reported to and, where 
appropriate, agreed with the rest of 
the Board.
EVOLUTION OF THE 
COMPANY’S GOVERNANCE 
FRAMEWORK 
The Board will, on an ongoing basis, and 
as the Company’s business develops and 
grows, review the appropriateness of the 
governance framework, including the 
composition of the Board and the need 
for an internal audit function, to ensure 
the Company delivers on its strategy 
and goals whilst maintaining appropriate 
governance structures.
Corero Network Security plc  Annual Report and Accounts 2024
41
Overview
Strategic Report
Governance
Financial Statements
Corporate Directory

BOARD PERFORMANCE AND REMUNERATION POLICY
INTRODUCTION
An annual Board effectiveness review 
is undertaken to enable the Board to 
stand back and assess its strengths and 
areas for development. This review is 
conducted internally.
The Board may refresh the performance 
assessment process based on external 
advice and if appropriate engage a third-
party facilitator to assist in the performance 
of such effectiveness reviews every 
three years.
The Remuneration Committee’s (‘RC’) 
remit is to measure the performance of and 
determine the remuneration policy relating 
to Directors and senior employees. To 
support this responsibility, it has access to 
professional and other advice external to the 
Group. Taking the performance factors into 
account, it then makes recommendations to 
the Board.
To assist the work of the RC, the views 
of the CEO and CFO are also invited 
where appropriate. However, they do not 
participate in any decision related to their 
own remuneration.
The Nomination Committee reviews and 
recommends nominees as new Directors 
to the Board. Senior management 
appointments are required to be approved 
by the RC.
The Group is committed to the governing 
objective of maximising shareholder value 
over time. Each year the remuneration 
framework and the packages of the 
Directors are reviewed to ensure they 
continue to achieve this objective.
The Group operates in the cyber security 
market which is a market with significant 
growth potential. It is also a competitive 
market with a number of companies who 
are significantly larger than Corero. The 
Group’s Executive Director remuneration 
policy is designed to attract and retain 
Directors of the calibre required to maintain 
the Group’s position in its marketplace. 
This is maintained through the use of bonus 
and share option schemes, as follows.
BONUS
A cash bonus designed to incentivise 
specific short-term financial goals. 
Goals and objectives are set for the 
Executive Directors based on key financial 
performance metrics. All Executive Directors 
have bonus targets for Revenue (50% of 
bonus) and EBITDA (25% of bonus). In 
addition, each Executive Director has a 
specific KPI which makes up the final 25% 
of their bonus. The Chief Executive Officer 
on-target bonus is set at 100% of base 
salary (total achievement 70%) and the Chief 
Technology Officer on-target bonus is set at 
two-thirds of base salary (total achievement 
51%).
SHARE OPTIONS
Share options are granted to encourage and 
reward delivery of the Company’s long-term 
strategic objectives and provide alignment 
with shareholders through the use of share-
based incentives.
All share-based incentives offered to 
Directors have a three-year vesting schedule, 
with one-third vesting on the first anniversary 
of the grant/start date, a further third on the 
second anniversary of the grant/start date 
and the final third on the third anniversary 
of the grant/start date. Share options are 
granted with an exercise price set at the 
higher of market price or such other price as 
determined by the RC.
CONFLICTS OF INTEREST
The members of the RC do not have any 
conflicts from cross-directorships that 
relate to the business of the Committee. 
The members of the RC do not have any 
day-to-day involvement in the running of 
the Group.
BOARD CHANGES
On 17 April 2024, Rob Scott was appointed 
to the Board of Directors which was 
approved by shareholders at the AGM on 
20 June 2024. 
Given Corero’s size, the Company does 
not have internal succession candidates 
for the Executive Directors. In the event 
an Executive Director replacement is 
required, the Company would seek to 
recruit a replacement through a recruitment 
search process. The Board is satisfied 
that the Company’s middle management 
will ensure the Company’s business is not 
adversely impacted in the period between 
an Executive Director leaving and a 
replacement being recruited.
42
Corero Network Security plc  Annual Report and Accounts 2024

Corero Network Security plc  Annual Report and Accounts 2024
43
Overview
Strategic Report
Governance
Financial Statements
Corporate Directory

BOARD COMMITTEE REPORTS
The Board has three established Committees:
	•
Audit, Risk and Compliance 
Committee: responsible for reviewing 
the Group’s interim and year end 
results announcements, and the Annual 
Report and Accounts; determining the 
application of the financial reporting and 
internal control and risk management 
procedures and assessing the scope, 
quality and results of the external audit
	•
Remuneration Committee: responsible 
for the policy for the remuneration 
of the Executive Directors and senior 
management; setting the remuneration of 
the Executive Directors, determining the 
payment of bonuses to Executive Directors; 
and approving the Company’s bonus and 
incentive arrangements for employees
	•
Nomination Committee: responsible 
for reviewing the composition, structure 
and size of the Board; assessing the 
leadership needs of the Group; and 
recommending nominees as new 
Directors to the Board
AUDIT, RISK AND COMPLIANCE 
COMMITTEE (‘ARCC’) REPORT
The ARCC members comprise Andrew 
Miller, who is the Committee Chairman, and 
members Richard Last and Rob Scott, and 
meets at least twice a year. The Company’s 
Chief Financial Officer and Group Financial 
Controller, and the Company’s external 
auditors attend the meetings. 
Rob Scott was appointed to the ARCC on 
7 June 2024.
In the year ended 31 December 2024, the 
ARCC met on two occasions. The attendance 
of individual Committee members at ARCC 
meetings in the year to 31 December 2023 is 
shown in the table below:
Meetings 
attended
Andrew Miller 
(Committee Chairman)
2/2
Richard Last 
2/2
Rob Scott
1/1
The ARCC’s activities during the year, based 
on its terms of reference, are set out below:
	•
Reviewed the scope and results of the 
external audit, its cost effectiveness and the 
objectivity of the auditors through review 
of documentation and reporting provided 
to the Committee, direct discussion with 
the Audit Partner, and discussion with 
management who are directly involved 
with the external audit. The current 
auditors, MHA, have been in place for two  
financial years and have reconfirmed their 
independence ahead of the 2024 audit
	•
Reviewed, prior to publication, the interim 
financial statements, preliminary results 
announcement, the annual financial 
statements and the other information 
included in the Annual Report. Considered 
the regulatory, technical and operational 
risks of the Company and ensured these 
risks are properly assessed, monitored and 
reported on and the appropriate policies 
and procedures are in place
	•
Receive internal assurance as to the 
control framework through review 
and discussion with the internal 
finance function, and review of external 
audit reports to the Committee concluding 
on the internal control environment
	•
Consideration as to the effectiveness of 
the risk and control framework and that 
the processes are operating properly 
from discussion with key management 
and the external auditors
The key financial reporting judgements 
relating to the financial statements for the 
year ended 31 December 2024 which the 
ARCC have considered and discussed with 
the auditors, include:
Financial 
statements 
note
Revenue recognition
2.4
Capitalisation of development 
costs
2.9 and 10
Carrying value of investments 
and impairment assessment
2.12, Plc 2.4 
and Plc 3 
The ARCC is satisfied with the treatment in 
the financial statements and the disclosure 
in the notes.
REMUNERATION COMMITTEE 
(‘RC’) REPORT
The RC comprises Rob Scott (Chairman) and 
members Peter George, Jens Montanana 
and Richard Last. The RC meets at least 
twice a year.
Rob Scott was appointed to the RC on 7 
June 2024 and appointed Chairman on 7 
June 2024. Prior to this, Peter George was 
Chairman of the RC. 
In the year ended 31 December 2024, the 
RC met on one scheduled occasion; further 
meetings and conference calls were held 
as and when necessary. The attendance of 
individual Committee members at scheduled 
RC meetings in the year to 31 December 
2024 is shown in the table below:
Meetings 
attended
Rob Scott (Committee Chairman)
0/0*
Richard Last
1/1
Peter George
1/1
Jens Montanana
1/1
* Appointed to RC after meeting held. Peter George 
was Chairman for the meeting held. 
The RC’s activities during the year, which 
are based on its terms of reference, are set 
out below:
	•
Reviewed the performance of the 
Executive Directors and set the 
remuneration of the Executive Directors
	•
Determined the payment of bonuses 
to Executive Directors and approved 
the Company’s bonus and incentive 
arrangements for employees
	•
Ensured the Company’s share option 
schemes were operated properly and 
approved the share option grants to 
Executive Directors and employees
The remuneration of the Chairman and 
Non-executive Directors is decided upon 
by the Board.
Details of Directors’ remuneration for the 
year ended 31 December 2024 is set out in 
note 22 of the financial statements.
Corero Network Security plc  Annual Report and Accounts 2024
44

NOMINATION COMMITTEE 
(‘NC’) REPORT
The NC comprises Jens Montanana 
(Chairman), Richard Last, Peter George, 
Andrew Miller and Rob Scott. The NC 
meets as required.
In the year ended 31 December 2024, 
the NC met on one scheduled occasion. 
The attendance of individual Committee 
members at NC meetings in the year to 
31 December 2024 is shown in the table below:
Meetings 
attended
Jens Montanana (Committee 
Chairman)
1/1
Richard Last
1/1
Peter George
1/1
Andrew Miller
0/0
Rob Scott
0/0
The NC’s activities during the year, which 
are based on its terms of reference, are set 
out below:
	•
Reviewed the composition, structure, and 
size of the Board
	•
Reviewed the leadership needs of 
the Group
Corero Network Security plc  Annual Report and Accounts 2024
45
Overview
Strategic Report
Governance
Financial Statements
Corporate Directory

DIRECTORS’ REPORT
GROUP RESULTS
The Group’s Income Statement on page 58 
shows a profit after tax for the year of $0.5 
million (2023: loss of $0.2 million).
GOING CONCERN
The financial position and cash flows are 
described in the Financial Review on 
page 26. An indication of likely future 
developments affecting the Group is 
included in the Strategic Report on pages 
22 to 35.
The Directors have prepared detailed 
income statement, balance sheet and 
cash flow projections for the period to 30 
June 2026 (‘going concern assessment 
period’). The cash flow projections have 
been subjected to sensitivity analysis of 
the revenue, cost and combined revenue 
and cost levels which demonstrate that the 
Group will maintain a positive cash balance 
through the going concern assessment 
period. As part of the sensitivity analysis, 
the Directors have noted that should the 
forecasted revenues not be achieved, 
mitigating actions can be taken to address 
any cash flow concerns. These actions 
include the deferral of capital expenditure, 
reduction in marketing and other variable 
expenditure alongside a hiring freeze.
The Directors have also considered the geo-
political environment, including inflationary 
fluctuations in some of our key markets 
and the conflicts in Ukraine and the Middle 
East, and whilst the impact on the Group 
is currently deemed minimal, the Directors 
remain vigilant and ready to implement 
mitigation action in the event of a downturn 
in demand or an impact on operations.
On this basis, the Directors have therefore 
concluded that it is appropriate to prepare 
the financial statements on a going 
concern basis.
DIVIDENDS
The Directors have not recommended a 
dividend (2023: $nil).
SHARE CAPITAL
The issued share capital of the Company, 
together with details of movements in the 
Company’s issued share capital during the 
financial period, are shown in note 20 to the 
financial statements. As at the date of this 
report, 512,165,134 ordinary shares of 1p 
each (‘ordinary shares’) were in issue and 
fully paid with an aggregate nominal value 
of $7.1 million.
The market price of the ordinary shares at 
31 December 2024 was 19.7p and the shares 
traded in the range 8.0p to 27.5p during 
the year (as at 31 December 2023 was 8.25p 
and the shares traded in the range 5.75p to 
10.25p during the year ended 31 December 
2023).
ISSUE OF SHARES POWERS 
AT THE AGM
At the AGM held on 20 June 2024, 
shareholders granted authority to the Board 
under the Articles and Section 551 of the 
Companies Act 2006 (the ‘Act’) to exercise 
all powers of the Company to allot relevant 
securities up to an aggregate nominal 
amount of £750,276.
Also at the AGM held on 20 June 2024, 
shareholders granted authority to the Board 
under the Articles and Section 570(1) of the 
Act to exercise all powers of the Company 
to allot equity securities wholly for cash 
up to an aggregate nominal amount of 
£508,828.47 without application of the 
statutory pre-emption rights contained in 
Section 561(1) of the Act.
SUBSTANTIAL SHAREHOLDINGS
The Company has been notified of the following holdings that are 3% or more of the Group’s ordinary share capital as at 24 March 2025:
Ordinary shares of 1 pence each
Number
%
Jens Montanana*
187,300,406
36.57
Sabvest Capital Holdings Ltd**
57,500,000
11.23
Caraway Group Inc
53,600,000
10.47
Juniper Networks Inc
49,179,772
9.60
Herald Investment Trust
44,657,121
8.72
Charles Stanley private clients
22,711,564
4.43
Peter Kennedy Gain
16,378,246
3.20
* of which 33,674,846 are held in the name of JPM International Limited, which is wholly owned by Jens Montanana, and 125,871,751 are held in the name of The New 
Millennium Technology Trust of which Jens Montanana is a beneficiary.
** In the FY 2023 Annual Report, Sabvest Capital Holdings Ltd was incorrectly disclosed as holding 50,000,000 shares at 9.83%. The correct amount of shares held at 
31 December 2023 was 51,000,000 representing 10.02% of ordinary share capital. 
Corero Network Security plc  Annual Report and Accounts 2024
46

DIRECTORS’ SHAREHOLDINGS
31 March 2025
31 December 2024
31 December 2023
Number
%
Number
%
Number
%
Jens Montanana
187,300,406
36.57
187,300,406
36.57
187,300,406
37.35
Peter George
–
–
–
–
–
–
Richard Last
4,500,000
0.88
2,500,000
0.88
2,500,000
0.50
Andrew Miller
1,091,437
0.21
1,091,437
0.21
1,091,437
0.22
Rob Scott
–
–
n/a
n/a
n/a
n/a
Phil Richards
n/a
n/a
n/a
n/a
–
–
Ashley Stephenson
38,000
0.01
38,000
0.01
38,000
0.01
Carl Herberger
1,451,027
0.28
1,344,497
0.26
1,344,497
0.27
DIRECTORS’ INDEMNITIES
The Company has qualifying third-party 
indemnity provisions in place for the benefit 
of its Directors. These remain in force at the 
date of this report.
DIRECTORS AND DIRECTORS’ 
INTERESTS
The Directors who served in office during 
the year and up to the date of this report 
and their interests in the Company’s shares 
were as above.
The biographical details of the current 
Directors of the Company are set out on 
pages 36 and 37.
Details of the share options held by 
Directors are shown in note 24 to the 
financial statements.
FINANCIAL RISK 
MANAGEMENT OBJECTIVES 
AND POLICIES
The Group’s business activities expose it to 
a variety of financial risks. The policies for 
managing these risks are described below:
	•
Liquidity risk – arises from the Group’s 
management of working capital and 
finance charges. It is a risk that the Group 
will encounter difficulty in meeting its 
financial obligations as they fall due. 
Liquidity risk is managed by the Finance 
function. Annual budgets are agreed by 
the Board, enabling the Group’s cash 
flow requirements to be anticipated.
	•
Credit risk – arises from cash and cash 
equivalents and from credit exposures 
to the Group’s customers including 
outstanding receivables and committed 
transactions. Credit risk is managed with 
regular reports of exposures reviewed 
by management, and due diligence 
processes completed ahead of new 
contracts being signed.
The Group does not set individual credit 
limits but seeks to ensure that customers 
enter into legally enforceable contracts that 
include settlement terms that demonstrate 
the customers’ commitment to the 
transaction and minimise this risk exposure.
The amounts of trade receivables presented 
in the Statement of Financial Position 
are shown net of allowances for doubtful 
accounts estimated by management based 
on prior experience and their assessment of 
the current economic environment (note 14).
The Group has no significant concentration 
of credit risk, with exposure spread over a 
number of customers.
The credit risk on liquid funds and financial 
instruments is limited because the 
counterparties are banks with acceptable 
credit ratings assigned by international 
credit rating agencies.
	•
Currency risk – there was no material 
impact from trading currency risk on the 
Group’s profit or loss for the year from 
exchange rate movements, as foreign 
currency transactions are entered into 
by Group companies whose functional 
currency is aligned with the currencies 
in which it transacts. Exchange rate 
risks do arise in relation to (i) equity 
fund raises which are in GBP, given the 
Company’s AIM listing, to the extent such 
funds are required to support US dollar 
denominated funding requirements, and 
(ii) GBP denominated obligations of the 
Group given the invoicing currency of 
the Group is US dollar denominated. The 
Group has not currently implemented 
a policy to hedge foreign currency 
movements as there has been available 
GBP denominated funds available 
from debt and equity fund raises. US 
denominated funds received by the 
Group’s US subsidiary have been used 
to fund that subsidiary during 2024 as 
revenues have grown. Management 
and the Board continue to consider 
implementation of a hedging policy to 
ensure predictability of costs for the 
Group’s UK subsidiary which receives 
revenues in USD but incurs costs mainly 
in GBP. The Group keeps this policy 
under review based on the expected 
timing of US dollar and GBP operational 
funding requirements.
The principal risk which applies to the 
Parent Company’s financial statements is 
the risk that the returns generated by the 
subsidiaries might not support the carrying 
value of the cost of the investments in 
subsidiaries. The carrying value is tested 
at least annually for impairment and, if 
necessary, impaired as appropriate.
CAPITAL MANAGEMENT
The Group monitors its available capital, 
which it considers to be all components of 
equity against its expected requirements.
The Group’s objectives when maintaining 
capital are to safeguard the entity’s ability to 
continue as a going concern, so that it can 
continue to provide returns for shareholders 
and benefits for other stakeholders, and to 
ensure that sufficient funds can be raised for 
investing activities. In order to maintain or 
adjust the capital structure, the Company 
may return capital to shareholders, issue 
new shares, or sell assets. The Group does 
not review its capital requirements according 
to any specified targets or ratios.
Corero Network Security plc  Annual Report and Accounts 2024
47
Overview
Strategic Report
Governance
Financial Statements
Corporate Directory

TREASURY MANAGEMENT 
The objectives of Group treasury policies are 
to ensure that adequate financial resources 
are available for development of the 
business while at the same time managing 
financial risks. Financial instruments may 
be used to reduce financial risk exposures 
arising from the Group’s business activities 
and not for speculative purposes.
The Group’s treasury activities are managed 
by the Group Financial Controller who 
reports to the Board on the implementation 
of the Group treasury policy.
ENVIRONMENT
The Group’s activities are primarily office-
based and as such the Directors believe 
that there is no significant environmental 
impact arising from the Group’s activities. 
The Group complies with local Waste 
Electrical and Electronic Equipment (‘WEEE’) 
regulations. No environmental performance 
indicators are therefore included within this 
report. The Group’s environmental policy 
states: ‘We endeavour to recycle appropriate 
materials where possible and to efficiently 
use natural resources and energy supplies 
so as to minimise our environmental impact. 
We will comply with the relevant statutes 
and legislation. Furthermore, employees are 
encouraged to be environmentally aware. 
Company cars are not provided.’
RESEARCH AND DEVELOPMENT
The development of computer software is 
an integral part of the Group’s business and 
the Group continues to develop its software 
in response to user demand, and particularly 
the changing IT security threat landscape. 
During the year the Group enhanced the 
features and functionality of its existing 
products. A capital investment of $3.2 
million (2023: $1.8 million) was made during 
the year. Amortisation of $1.6 million (2023: 
$1.5 million) and costs not capitalised of 
$1.6 million (2023: £1.8 million) were charged 
to the Group Income Statement during the 
year.
EMPLOYEES
The quality and commitment of the Group’s 
employees has played a major role in 
the Company’s continued progress. This 
has been demonstrated in many ways, 
including strong customer satisfaction, the 
development of new product offerings 
and the flexibility employees have 
shown in adapting to changing business 
requirements. The Group operates sales 
commission, incentive bonus plans and 
share option plans to provide incentives 
for achievements which add value to 
the business.
ANNUAL GENERAL MEETING
Notice of the AGM together with details of 
the business to be considered will be sent to 
shareholders in due course.
AUDITORS
In so far as each Director is aware:
	•
There is no relevant audit information 
of which the Company’s auditors are 
unaware
	•
The Directors have taken all the steps 
that they ought to have taken to make 
themselves aware of any relevant audit 
information and to establish that the 
Company’s auditors are aware of that 
information
POST YEAR END EVENTS
There have been no events that have 
occurred after the balance sheet date which 
require disclosure.
By order of the Board
Emma Rockey
COMPANY SECRETARY
31 March 2025
DIRECTORS’ REPORT CONTINUED
Corero Network Security plc  Annual Report and Accounts 2024
48

STATEMENT OF DIRECTORS’ RESPONSIBILITIES
The Directors are responsible for preparing the 
Annual Report and financial statements in accordance 
with applicable law and regulations.
Company law requires the Directors to 
prepare financial statements for each 
financial year. Under that law the Directors 
have elected to prepare the Group financial 
statements in accordance with UK adopted 
international accounting standards. The 
Directors have chosen to prepare the 
Company financial statements in accordance 
with applicable United Kingdom accounting 
standards, including FRS 101 Reduced 
Disclosure Framework (‘FRS 101’). Under 
company law the Directors must not 
approve the financial statements unless 
they give a true and fair view of the state of 
affairs of the Group and Parent Company 
and of the profit or loss of the Group for that 
period. The Directors are also required to 
prepare financial statements in accordance 
with the rules of the London Stock Exchange 
for companies trading securities on the AIM. 
In preparing these financial statements, the 
Directors are required to:
	•
Select suitable accounting policies and 
then apply them consistently
	•
Make judgements and estimates that are 
reasonable and prudent
	•
State whether they have been prepared 
in accordance with UK adopted 
international accounting standards in 
conformity with the requirements of 
the Companies Act 2006, subject to 
any material departures disclosed and 
explained in the financial statements
	•
Prepare the financial statements on 
the going concern basis unless it is 
inappropriate to presume that the Group 
will continue in business
The Directors are responsible for keeping 
adequate accounting records that are 
sufficient to show and explain the Group’s 
transactions and disclose with reasonable 
accuracy at any time the financial position 
of the Group and enable them to ensure 
that the financial statements comply with 
the Companies Act 2006. They are also 
responsible for safeguarding the assets of 
the Group and hence for taking reasonable 
steps for the prevention and detection of 
fraud and other irregularities.
The Directors are responsible for ensuring 
the Annual Report and the financial 
statements are made available on a website. 
Financial statements are published on the 
Company’s website in accordance with 
legislation in the United Kingdom governing 
the preparation and dissemination of 
financial statements, which may vary from 
legislation in other jurisdictions. The 
maintenance and integrity of the Company’s 
website is the responsibility of the Directors. 
The Directors’ responsibility also extends 
to the ongoing integrity of the financial 
statements contained therein.
Corero Network Security plc  Annual Report and Accounts 2024
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Overview
Strategic Report
Governance
Financial Statements
Corporate Directory

INDEPENDENT AUDITOR’S REPORT TO THE MEMBERS 
OF CORERO NETWORK SECURITY PLC
For the purpose of this report, the terms “we” and “our” denote MHA in relation to UK legal, professional and regulatory responsibilities 
and reporting obligations to the members of Corero Network Security plc. For the purposes of the table on pages 52 to 53 that sets out 
the key audit matters and how our audit addressed the key audit matters, the terms “we” and “our” refer to MHA. The Group financial 
statements, as defined below, consolidate the accounts of Corero Network Security plc and its subsidiaries (the “Group”). The “Parent 
Company” is defined as Corero Network Security plc, as an individual entity. The relevant legislation governing the Company is the United 
Kingdom Companies Act 2006 (“Companies Act 2006”).
OPINION 
We have audited the financial statements of Corero Network Security plc for the year ended 31 December 2024. 
The financial statements that we have audited comprise:
	•
the Consolidated Income Statement
	•
the Consolidated Statement of Comprehensive Income 
	•
the Consolidated Statement of Financial Position 
	•
the Consolidated Statement of Cash Flows 
	•
the Consolidated Statement of Changes in Equity 
	•
Notes to the consolidated financial statements, including significant accounting policies
	•
the Company Statement of Financial Position
	•
the Company Statement of Changes in Equity and
	•
Notes to the company financial statements, including significant accounting policies.
The financial reporting framework that has been applied in the preparation of the group’s financial statements is applicable law and UK 
adopted international accounting standards. The financial reporting framework that has been applied in the preparation of the Parent 
Company financial statements is applicable law and United Kingdom Accounting Standards, including Financial Reporting Standard 101 
Reduced Disclosure Framework (United Kingdom Generally Accepted Accounting Practice).
In our opinion, the financial statements: 
	•
give a true and fair view of the state of the Group’s and of the Parent Company’s affairs as at 31 December 2024 and of the Group’s 
profit for the year then ended;
	•
have been properly prepared in accordance with UK adopted international accounting standards; and
	•
have been prepared in accordance with the requirements of the Companies Act 2006.
Our opinion is consistent with our reporting to the Audit Committee.
BASIS FOR OPINION
We conducted our audit in accordance with International Standards on Auditing (UK) (ISAs (UK)) and applicable law. Our responsibilities 
under those standards are further described in the Auditor Responsibilities for the Audit of the Financial Statements section of our report. 
We are independent of the Group in accordance with the ethical requirements that are relevant to our audit of the financial statements in 
the UK, including the FRC’s Ethical Standard as applied to listed entities, and we have fulfilled our ethical responsibilities in accordance with 
those requirements. We believe that the audit evidence we have obtained is sufficient and appropriate to provide a basis for our opinion.
Corero Network Security plc  Annual Report and Accounts 2024
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CONCLUSIONS RELATING TO GOING CONCERN 
In auditing the financial statements, we have concluded that the Directors’ use of the going concern basis of accounting in the preparation 
of the financial statements is appropriate.
Our evaluation of the Directors’ assessment of the Group’s and the Parent Company’s ability to continue to adopt the going concern basis 
of accounting included:
	•
The consideration of inherent risks to the Group and Parent Company’s operations and specifically its business model, and the 
evaluation of how those risks might impact on the Group and Parent Company’s available financial resources. 
	•
Evaluating the directors’ assessment of the group’s ability to continue as a going concern, including testing the mechanical accuracy of 
the cash flow model, assessing the reasonableness of key assumptions including revenue growth, operating expenditure, and software 
development spend, and corroborating these to historical trends and post-period-end data.
	•
Consideration of availability of funds required to settle obligations, as they fall due, during the going concern review period. Assessing 
the reasonableness and practicality of the mitigation measures identified by management in their conservative case scenario and 
considered by them in arriving at their conclusions about the existence of any uncertainties in respect of going concern.
	•
Reviewing board meeting minutes and management reports prepared after the balance sheet date, including current trading and 
funding status, to identify any events which may cast significant doubt on the going concern assumption.
Based on the work we have performed, we have not identified any material uncertainties relating to events or conditions that, individually 
or collectively, may cast significant doubt on the Group’s and Parent Company’s ability to continue as a going concern for a period of at 
least twelve months from when the financial statements are authorised for issue. 
Our responsibilities and the responsibilities of the directors with respect to going concern are described in the relevant sections of this report.
OVERVIEW OF OUR AUDIT APPROACH
Scope
Our audit was scoped by obtaining an understanding of the Group, including the Parent Company, and its 
environment, including the Group’s system of internal control, and assessing the risks of material misstatement in the 
financial statements.  We also addressed the risk of management override of internal controls, including assessing 
whether there was evidence of bias by the directors that may have represented a risk of material misstatement.
Materiality
2024
2023
Group
$450k
$400k
1.75% of revenue (2023: 1.8% of revenue)
Parent 
Company
$445k
$300k
1% of gross assets capped at group materiality (2023: 1% of net assets capped 
at group materiality)
Key audit 
matters
Group
•	 Risk of fraud in revenue recognition (cut off and accuracy)
•	 Capitalisation of development costs (existence and valuation)
Parent  
Company
•	 Carrying value of investments and impairment assessment (valuation)
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KEY AUDIT MATTERS
Key Audit Matters are those matters that, in our professional judgement, were of most significance in our audit of the financial statements 
of the current period and include the most significant assessed risks of material misstatement (whether or not due to fraud) that we 
identified. These matters included those matters which had the greatest effect on: the overall audit strategy; the allocation of resources 
in the audit; and directing the efforts of the engagement team. These matters were addressed in the context of our audit of the financial 
statements as a whole, and in forming our opinion thereon, and we do not provide a separate opinion on these matters. 
Risk of fraud in revenue recognition (cut off and accuracy)
Key audit matter 
description
As detailed in note 4, the Group generated revenue of $24.6m (2023: $22.3m) during the year through the 
sale of the following products and services:
•	 appliance and perpetual software licenses;
•	 software subscription licenses for a defined term;
•	 support services for a defined term;
•	 installation and training services;
•	 DDoS Protection as-a-Service (‘DDPaaS’) for a defined term; and
•	 SecureWatch Managed Service (enhanced security monitoring services) for a defined term.
The Group enters into complex multi-element contracts that include combinations of hardware, software, 
and services. Judgement is required in identifying distinct performance obligations and in determining the 
appropriate timing and allocation of revenue in accordance with IFRS 15. Additionally, the determination of 
standalone selling prices (‘SSP’), which underpins the allocation of revenue, involves management estimates 
that are subject to potential bias.
Due to the material impact of these transactions, the impact of this area on the overall audit strategy, 
in addition to the allocation of time and resources to this area, we considered this a key audit matter. 
How the scope of our 
audit responded to the 
key audit matter
Our audit work included, but was not restricted to the following: 
•	 We reviewed the group’s revenue recognition policy for each revenue stream through discussions with 
management and examined of the Group’s documentation; 
•	 We assessed whether the policies comply with UK adopted international accounting standards; 
•	 We obtained an understanding of the process, systems, and controls in place surrounding 
revenue recognition;
•	 We recorded our assessment of controls and tested the design and implementation of those controls;
•	 We substantively tested revenue recognised in the period including the allocation of the SSP to 
components of bundled contracts, and corroborated revenue recognised with supporting evidence;
•	 We compared revenue recognition for similar contracts to ensure uniform application of the revenue 
recognition policy;
•	 We tested balance sheet items related to revenue, including cut off for the deferred and accrued revenue 
balances and valuation and amortisation of the sales commission contract asset; 
•	 We identified and investigated unusual or large journal entries impacting revenue; and
•	 We reviewed financial statement disclosures in respect of revenue.
Key observations 
communicated to the 
Group’s Audit Committee
Based on our audit work detailed above, nothing has come to our attention that indicates that the Group’s 
revenue recognition accounting policy is not in line with the requirements of IFRS 15, or that revenue has not 
been recognised in accordance with the Group’s revenue recognition policy.
Capitalisation of development costs (existence and valuation)
Key audit 
matter description
The Group undertakes significant amounts of software development which is capitalised as intangible assets, 
as detailed in Note 10. Judgement is required in distinguishing between research and development phases, 
assessing the technical and commercial feasibility of projects, and determining whether the capitalisation 
criteria of IAS 38 are met, particularly regarding the probable future economic benefits of the asset. 
Due to the judgement required, material nature of these costs, and the allocation of resources in the audit 
to this area, we determined this to be a key audit matter. 
INDEPENDENT AUDITOR’S REPORT CONTINUED
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Risk of fraud in revenue recognition (cut off and accuracy)
How the scope of our 
audit responded to the 
key audit matter
Our audit work included, but was not restricted to the following:
•	 We assessed management’s accounting policy and ensured it aligned with IAS 38;
•	 We held discussions with senior representatives across the Engineering, Product development and Finance 
teams to understand the key projects and releases during the year, the systems, processes and controls 
around the recording of capitalised costs and the key areas of judgement;
•	 We recorded our assessment of controls and tested the design and implementation of those controls;
•	 We substantively tested the capitalised development expenditure to ensure the definition and recognition 
criteria per IAS 38 were met;
•	 We compared the recorded activity of development teams to the tasks allocated in the product 
development management system; 
•	 We held discussions with key team members to confirm the reasonableness of project time and allocation;
•	 We analytically considered the completeness of recorded non-chargeable time of the development teams;
•	 We challenged management’s assumptions in their valuation of intangible assets including the need 
for impairment; 
•	 We evaluated the reasonableness of the useful lives of intangible assets; and 
•	 We reviewed financial statement disclosures in respect of capitalised development costs.
Key observations 
communicated to the 
Group’s Audit Committee
Based on our audit work detailed above, nothing has come to our attention that indicates that the 
application of the Group’s accounting policy in respect of capitalised development costs is not in line with the 
requirements of IAS 38, or that costs have not been capitalised in accordance with the policy.
Carrying value of investments and impairment assessment (valuation)
Key audit matter 
description
The Parent Company holds investments in its subsidiary undertakings, which are carried at cost less any 
impairment provisions. Impairment provisions have been recorded against these investments in previous 
financial years. See note 3 of the Parent Company financial statements for details. 
The investments are subject to impairment reviews, at least annually, or more regularly should circumstances 
require it. This involves subjective estimates in models which are forward-looking and inherently uncertain, 
including revenue growth assumptions, which if over estimated, could lead to material variances in the 
impairment reversal indicated.
Due to the judgement involved in estimating recoverable amounts, the use of valuation models, and the audit 
effort required (including the involvement of valuation specialists) we determined this to be a key audit matter.
How the scope of our 
audit responded to the 
key audit matter
Our audit work included, but was not restricted to the following:  
•	 We assessed management’s accounting policies and ensured they aligned with the appropriate accounting 
standards;
•	 We evaluated management’s assessment of impairment indicators and impairment reversal;
•	 We tested the accuracy of management’s discounted cash flow (‘DCF’) model, including the: arithmetic, 
inputs, methodology and cross checking for consistency with other forecast models.
•	 We challenged the key inputs to the DCF model, such as revenue growth rates and the discount rate: 
–	 We corroborated the revenue growth rates against external market data and the Group’s historic 
performance; and 
–	 We evaluated management’s discount rate against a range calculated by our specialist.
•	 We sensitised key inputs to the DCF model to understand the impact on the valuation, and challenged 
management based on the results of these valuation scenarios; and
•	 We reviewed financial statement disclosures for completeness and reasonableness of sensitivity 
disclosures.
Key observations 
communicated to the 
Group’s Audit Committee
•	 Based on our audit work detailed above, nothing has come to our attention that indicates that the 
application of the Parent Company’s accounting policy in respect of investments in subsidiaries is not 
in line with the requirements of IAS 36, or that the level of impairment provision is not in accordance 
with the policy.
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Financial Statements
Corporate Directory

OUR APPLICATION OF MATERIALITY
Our definition of materiality considers the value of error or omission on the financial statements that, individually or in aggregate, would 
change or influence the economic decision of a reasonably knowledgeable user of those financial statements.  Misstatements below these 
levels will not necessarily be evaluated as immaterial as we also take account of the nature of identified misstatements, and the particular 
circumstances of their occurrence, when evaluating their effect on the financial statements as a whole. Materiality is used in planning the 
scope of our work, executing that work and evaluating the results. 
Group
Overall 
Materiality
$450,000 
(2023: $400,000)
1.75% (2023: 1.8%) 
of the Group’s 
revenue
The Group’s total revenue was deemed to be the appropriate benchmark for the 
calculation of Group materiality as this is the main measure by which the users 
of the financial statements assess the financial performance and success of the 
Group and is a key performance indicator identified by management. 
Performance 
Materiality
$315,000 
(2023: $280,000)
70% (2023: 70%) 
of the above 
materiality levels
Performance materiality is the application of materiality at the individual account 
or balance level, set at an amount to reduce, to an appropriately low level, the 
probability that the aggregate of uncorrected and undetected misstatements 
exceeds materiality for the financial statements as a whole.  
The determination of performance materiality reflects our assessment of the risk 
of undetected errors existing, the nature of the systems and controls and the 
level of misstatements arising in previous audits. 
De Minimis 
reporting 
threshold
£22,500 
(2023: $20,000)
5% of Overall 
Materiality
We agreed to report any corrected or uncorrected adjustments exceeding this 
threshold to the Audit Committee as well as differences below that in our view 
warranted reporting on qualitative grounds. 
Parent Company
Overall 
Materiality
$445,000 
(2023: $300,000)
1% of the Parent 
Company’s gross 
assets (2023: 1% 
of net assets)
Gross assets were deemed to be the most appropriate benchmark to set 
materiality as the parent primarily holds investments in the group’s subsidiaries. 
The materiality applied to the Parent Company was capped at below group 
materiality to mitigate the aggregated risk of material error on consolidation.
Performance 
Materiality
$311,850 
(2023: $210,000)
70% (2023: 70%) 
of the above 
materiality levels
Performance materiality is the application of materiality at the individual account 
or balance level, set at an amount to reduce, to an appropriately low level, the 
probability that the aggregate of uncorrected and undetected misstatements 
exceeds materiality for the financial statements as a whole.  
The determination of performance materiality reflects our assessment of the risk 
of undetected errors existing, the nature of the systems and controls and the 
level of misstatements arising in previous audits. 
De Minimis 
reporting 
threshold
$22,275 
(2023: $15,000)
5% of Overall 
Materiality
We agreed to report any corrected or uncorrected adjustments exceeding this 
threshold to the Audit Committee as well as differences below that in our view 
warranted reporting on qualitative grounds.
Overview of the scope of the Group and Parent Company audits
Our assessment of audit risk, evaluation of materiality and our determination of performance materiality sets our audit scope for each 
company within the Group. Taken together, this enables us to form an opinion on the consolidated financial statements. This assessment 
takes into account the size, risk profile, organisation / distribution and effectiveness of group-wide controls, changes in the business 
environment and other factors such as recent internal audit results when assessing the level of work to be performed at each component.
In assessing the risk of material misstatement to the consolidated financial statements, and to ensure we had adequate quantitative and 
qualitative coverage of significant accounts in the consolidated financial statements, we identified the UK and USA trading subsidiaries as 
principal business units within the Group.
INDEPENDENT AUDITOR’S REPORT CONTINUED
	•
Components for which audit procedures 
on the full financial information will 
be performed to defined component 
performance materiality.
	•
Audit procedures to be performed 
on classes of transaction and account 
balance to a specified performance 
materiality.
	•
Out of scope.
Consolidated 
revenues
0%
100%
Operating loss 
before tax
0%
100%
Consolidated 
assets
0%
100%
Corero Network Security plc  Annual Report and Accounts 2024
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Full scope audits – Audits of the complete 
financial information of Corero Network 
Security plc, Corero Network Security (UK) 
Ltd, Corero Group Services Ltd and Corero 
Network Security Inc were undertaken. These 
entities were selected based upon their size 
or risk characteristics.
Coverage – The group audit approach 
provides 100% audit coverage of the group’s 
revenues, operating loss before tax and 
total assets.
The control environment
We evaluated the design and 
implementation of those internal controls of 
the Group, including the Parent Company, 
which are relevant to our audit, such as those 
relating to the financial reporting cycle. 
REPORTING ON OTHER 
INFORMATION
The other information comprises the 
information included in the annual report 
other than the financial statements and 
our auditor’s report thereon. The directors 
are responsible for the other information 
contained within the annual report. Our 
opinion on the financial statements does 
not cover the other information and, 
except to the extent otherwise explicitly 
stated in our report, we do not express 
any form of assurance conclusion thereon. 
Our responsibility is to read the other 
information and, in doing so, consider 
whether the other information is materially 
inconsistent with the financial statements 
or our knowledge obtained in the course 
of the audit, or otherwise appears to be 
materially misstated. If we identify such 
material inconsistencies or apparent 
material misstatements, we are required 
to determine whether this gives rise to 
a material misstatement in the financial 
statements themselves. If, based on the 
work we have performed, we conclude 
that there is a material misstatement of this 
other information, we are required to report 
that fact.
We have nothing to report in this regard.
STRATEGIC REPORT AND 
DIRECTORS REPORT 
In our opinion, based on the work 
undertaken in the course of the audit: 
	•
the information given in the strategic 
report and the directors’ report for the 
financial year for which the financial 
statements are prepared is consistent 
with the financial statements; and 
	•
the strategic report and the directors’ 
report have been prepared in accordance 
with applicable legal requirements. 
In the light of the knowledge and 
understanding of the Group and the Parent 
Company and their environment obtained 
in the course of the audit, we have not 
identified material misstatements in the 
strategic report or the directors’ report. 
MATTERS ON WHICH WE ARE 
REQUIRED TO REPORT 
BY EXCEPTION
We have nothing to report in respect of the 
following matters in relation to which the 
Companies Act 2006 requires us to report to 
you if, in our opinion: 
	•
adequate accounting records have not 
been kept by the Parent Company, or 
returns adequate for our audit have not 
been received from branches not visited 
by us; or 
	•
the Parent Company financial statements 
are not in agreement with the accounting 
records and returns; or 
	•
certain disclosures of directors’ 
remuneration specified by law are not 
made; or 
	•
we have not received all the information 
and explanations we require for our audit.
In the light of the knowledge and 
understanding of the Group and the Parent 
Company and their environment obtained 
in the course of the audit, we have not 
identified material misstatements in the 
strategic report or the directors’ report. 
RESPONSIBILITIES 
OF DIRECTORS  
As explained more fully in the directors’ 
responsibilities statement, the directors 
are responsible for the preparation of the 
financial statements and for being satisfied 
that they give a true and fair view, and 
for such internal control as the directors 
determine is necessary to enable the 
preparation of financial statements that are 
free from material misstatement, whether 
due to fraud or error.  
In preparing the financial statements, the 
directors are responsible for assessing the 
Group’s and the Parent Company’s ability to 
continue as a going concern, disclosing, as 
applicable, matters related to going concern 
and using the going concern basis of 
accounting unless the directors either intend 
to liquidate the Group or Parent Company 
or to cease operations, or have no realistic 
alternative but to do so.  
AUDITOR RESPONSIBILITIES 
FOR THE AUDIT OF THE 
FINANCIAL STATEMENTS 
Our objectives are to obtain reasonable 
assurance about whether the financial 
statements as a whole are free from material 
misstatement, whether due to fraud or error, 
and to issue an auditor’s report that includes 
our opinion. Reasonable assurance is a high 
level of assurance but is not a guarantee 
that an audit conducted in accordance 
with ISAs (UK) will always detect a material 
misstatement when it exists.
Misstatements can arise from fraud or error 
and are considered material if, individually 
or in aggregate, they could reasonably 
be expected to influence the economic 
decisions of users taken on the basis of 
these financial statements. 
A further description of our responsibilities 
for the financial statements is located 
on the FRC’s website at: www.frc.org.uk/
auditorsresponsibilities. This description 
forms part of our auditor’s report. 
Corero Network Security plc  Annual Report and Accounts 2024
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Extent to which the audit was 
considered capable of detecting 
irregularities, including fraud
Irregularities, including fraud, are 
instances of non-compliance with laws and 
regulations. We design procedures in line 
with our responsibilities, outlined above, to 
detect material misstatements in respect of 
irregularities, including fraud.
These audit procedures were designed 
to provide reasonable assurance that the 
financial statements were free from fraud 
or error. The risk of not detecting a material 
misstatement due to fraud is higher than 
the risk of not detecting one resulting from 
error and detecting irregularities that result 
from fraud is inherently more difficult than 
detecting those that result from error, as 
fraud may involve collusion, deliberate 
concealment, forgery or intentional 
misrepresentations. Also, the further 
removed non-compliance with laws and 
regulations is from events and transactions 
reflected in the financial statements, the less 
likely we would become aware of it.
Identifying and assessing potential 
risks arising from irregularities, 
including fraud
The extent of the procedures undertaken 
to identify and assess the risks of material 
misstatement in respect of irregularities, 
including fraud, included the following:
	•
We considered the nature of the industry 
and sector the control environment, 
business performance including 
remuneration policies and the Group’s, 
including the Parent Company’s, own risk 
assessment that irregularities might occur 
as a result of fraud or error. From our 
sector experience and through discussion 
with the directors, we obtained 
an understanding of the legal and 
regulatory frameworks applicable to the 
Group focusing on laws and regulations 
that could reasonably be expected 
to have a direct material effect on the 
financial statements, such as provisions 
of the Companies Act 2006, AIM listing 
rules and tax legislation.
	•
We enquired of the directors and 
management concerning the Group’s 
and the Parent Company’s policies and 
procedures relating to:
–	 identifying, evaluating and complying 
with the laws and regulations and 
whether they were aware of any 
instances of non-compliance;
–	 detecting and responding to the risks 
of fraud and whether they had any 
knowledge of actual or suspected 
fraud; and
–	 the internal controls established to 
mitigate risks related to fraud or non-
compliance with laws and regulations.
	•
We assessed the susceptibility of 
the financial statements to material 
misstatement, including how fraud might 
occur by evaluating management’s 
incentives and opportunities for 
manipulation of the financial statements. 
This included utilising the spectrum of 
inherent risk and an evaluation of the 
risk of management override of controls. 
We determined that the principal 
risks related to revenue recognition, 
the inappropriate capitalisation of 
development costs and impairment 
of investments.
Audit response to risks identified
In respect of the above procedures:
	•
we corroborated the results of our 
enquiries through our review of the 
minutes of the Group’s and the Parent 
Company’s board meetings;
	•
audit procedures performed by the 
engagement team in connection with the 
risks identified included:
–	 reviewing financial statement 
disclosures and testing to supporting 
documentation to assess compliance 
with applicable laws and regulations 
expected to have a direct impact on 
the financial statements;
–	 testing journal entries, including 
those processed late for financial 
statements preparation, those 
posted by infrequent or unexpected 
users, those posted to unusual 
account combinations;
–	 evaluating the business rationale 
of significant transactions outside 
the normal course of business, and 
reviewing accounting estimates 
for bias;
–	 enquiry of management around actual 
and potential litigation and claims;
–	 challenging the assumptions and 
judgements made by management in 
its significant accounting estimates, 
in particular those relating to 
capitalisation of development costs 
and discounted cash flow models; and 
–	 performed substantive procedures 
on the recognition and existence of 
revenues and the capitalisation of 
development costs in the period.
	•
the Senior Statutory Auditor considered 
the experience and expertise of the 
engagement team to ensure that the 
team had the appropriate competence 
and capabilities; and
	•
we communicated relevant laws and 
regulations and potential fraud risks to 
all engagement team members and 
remained alert to any indications of 
fraud or non-compliance with laws and 
regulations throughout the audit.
USE OF OUR REPORT 
This report is made solely to the Parent 
Company’s members, as a body, in 
accordance with Chapter 3 of Part 16 of the 
Companies Act 2006. Our audit work has 
been undertaken so that we might state 
to the Parent Company’s members those 
matters we are required to state to them in 
an auditor’s report and for no other purpose. 
To the fullest extent permitted by law, we 
do not accept or assume responsibility to 
anyone other than the Parent Company and 
the Parent Company’s members as a body, 
for our audit work, for this report, or for the 
opinions we have formed. 
Andrew Gandell, FCA
(SENIOR STATUTORY AUDITOR)
for and on behalf of MHA, Statutory Auditor 
London, United Kingdom  
31 March 2025 
MHA is the trading name of MacIntyre Hudson LLP, 
a limited liability partnership in England and Wales 
(registered number OC312313)
INDEPENDENT AUDITOR’S REPORT CONTINUED
Corero Network Security plc  Annual Report and Accounts 2024
56

FINANCIAL
STATEMENTS
Financial Statements and associated notes
58	Consolidated Income Statement
59	Consolidated Statement of Comprehensive Income
60	Consolidated Statement of Financial Position
61	Consolidated Statement of Cash Flows
62	Consolidated Statement of Changes in Equity
63	Notes to the Financial Statements
88	Company Statement of Financial Position
89	Company Statement of Changes in Equity
90	Notes to the Company Financial Statements
Corporate Directory
95	Glossary
96	Corporate Directory
Corero Network Security plc  Annual Report and Accounts 2024
57

CONSOLIDATED INCOME STATEMENT
FOR THE YEAR ENDED 31 DECEMBER 2024
Continuing operations
Note
Year ended
31 December
2024
$’000
Year ended
31 December
2023
$’000
Revenue
4 	
24,559
22,349
Cost of sales
(2,134)
(2,164)
Gross profit
22,425
20,185
Operating expenses
(21,933)
(20,201)
Consisting of:
Operating expenses before depreciation and amortisation
(19,925)
(18,428)
Depreciation and amortisation of intangible assets
10,11
(2,008)
(1,773)
Operating profit/(loss)
5
492
(16)
Finance income
99
44
Finance costs
5
(36)
(181)
Profit/(loss) before taxation
555
(153)
Taxation charge
6
(56)
(17)
Profit/(loss) after taxation
498
(170)
Profit/(loss) after taxation attributable to equity owners of the parent
498
(170)
Basic and diluted earnings/(loss) per share
Cents
Cents
Basic earnings per share
7
0.1
0.0
Diluted earnings per share
7
0.1
0.0
EBITDA
8
2,500
1,757
The notes on pages 63 to 94 form part of these financial statements.
Corero Network Security plc  Annual Report and Accounts 2024
58

CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME
FOR THE YEAR ENDED 31 DECEMBER 2024
Year ended
31 December
2024
$’000
Year ended
31 December
2023
$’000
Profit/(loss) for the year
498
(170)
Other comprehensive income:
Items reclassified subsequently to profit or loss upon derecognition:
Foreign exchange differences
(49)
628
Other comprehensive income for the year net of taxation attributable 
to the equity owners of the parent
449
458
Total comprehensive income for the year attributable to the equity owners of the parent
449
458
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CONSOLIDATED STATEMENT OF FINANCIAL POSITION
AS AT 31 DECEMBER 2024
Note
As at 
31 December 
2024
$’000
As at 
31 December 
2023
$’000
Assets
Non-current assets
Goodwill
9
8,991
8,991
Intangible assets
10
6,422
4,820
Property, plant and equipment
11
944
633
Leased right-of-use assets
12
139
309
16,496
14,753
Current assets
Inventories
13
389
96
Trade and other receivables
14
11,290
8,427
Cash and cash equivalents
5,321
5,160
17,000
13,683
Total assets
33,496
28,436
Liabilities
Current liabilities
Trade and other payables
15
(4,340)
(3,902)
Lease liabilities
12
(102)
(164)
Deferred income
18
(6,861)
(4,992)
(11,303)
(9,058)
Net current assets
5,697
4,625
Non-current liabilities
Lease liabilities
12
(48)
(151)
Deferred income
18
(3,481)
(2,491)
(3,529)
(2,642)
Net assets
18,664
16,737
Capital and reserves attributable to the equity owners of the parent
Share capital
20
7,133
6,999
Share premium
21
83,290
82,430
Capital redemption reserve
7,051
7,051
Share options reserve
2,491
2,007
Foreign exchange translation reserve
(2,014)
(1,965)
Accumulated profit and loss reserve
(79,287)
(79,785)
Total shareholders’ equity
18,664
16,737
These financial statements were approved and authorised for issue by the Board of Directors on 31 March 2025 and signed on their behalf.
Carl Herberger
DIRECTOR
The notes on pages 63 to 94 form part of these financial statements.
Corero Network Security plc  Annual Report and Accounts 2024
60

CONSOLIDATED STATEMENT OF CASH FLOWS
FOR THE YEAR ENDED 31 DECEMBER 2024
Operating activities 
Year ended 
31 December 
2024
$’000
Year ended 
31 December 
2023
$’000
Profit/(loss) before taxation for the year
555
(153)
Adjustments for movements:
Amortisation of acquired intangible assets
–
2
Amortisation of capitalised development expenditure
1,588
1,504
Depreciation 
467
423
Depreciation – leased assets
170
116
Assets redesignated from PPE to Cost of Sales
–
30
Finance income
(99)
(44)
Finance expense
8
164
Finance lease interest costs
28
17
Share-based payments expense
484
233
Cash generated from operating activities before movement in working capital
3,201
2,292
Movement in working capital:
(Increase)/decrease in inventories
(293)
68
(Increase)/decrease in trade and other receivables
(2,863)
(1,248)
Increase in trade and other payables
3,297
2,035
Net movement in working capital
141
855
Cash generated from operating activities
3,342
3,147
Taxation paid
(56)
(17)
Net cash generated from operating activities
3,286
3,130
Cash flows from investing activities
Investment in development expenditure
(3,190)
(1,824)
Purchase of property, plant and equipment
(789)
(812)
Finance income
99
44
Net cash used in investing activities
(3,879)
(2,592)
Cash flows from financing activities
Net proceeds from issue of ordinary share capital
994
165
Lease liability payments
(193)
(143)
Finance expense
(36)
(78)
Repayments of borrowings
–
(1,317)
Net cash generated from/(used in) financing activities
765
(1,373)
Increase/(decrease) in cash and cash equivalents
171
(835)
Effects of exchange rates on cash and cash equivalents
(10)
349
Cash and cash equivalents at 1 January
5,160
5,646
Cash and cash equivalents at 31 December
5,321
5,160
The notes on pages 63 to 94 form part of these financial statements.
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CONSOLIDATED STATEMENT OF CHANGES IN EQUITY
FOR THE YEAR ENDED 31 DECEMBER 2024
Share 
capital
$’000
Share 
premium 
account
$’000
Capital 
redemption 
reserve
$’000
Share 
options 
reserve
$’000
Foreign 
exchange 
translation 
reserve
$’000
Accumulated 
profit and 
loss reserve
$’000
Total 
attributable 
to equity 
owners of  
the parent
$’000
1 January 2023
6,980
82,284
7,051
1,777
(2,593)
(79,615)
15,884
Loss for the year
–
–
–
–
–
(170)
(170)
Other comprehensive income
–
–
–
–
628
–
628
Total comprehensive income for the year
–
–
–
–
628
(170)
458
Contributions by and distributions to owners
Issue of share capital – exercise of options
19
146
–
–
–
–
165
Fully exercised share options
–
–
–
(3)
–
–
(3)
Share-based payments
–
–
–
233
–
–
233
Total contributions by and distributions to 
owners
19
146
–
230
–
–
395
31 December 2023 and 1 January 2024
6,999
82,430
7,051
2,007
(1,965)
(79,785)
16,737
(Loss)/Profit for the year
–
–
–
–
–
498
498
Other comprehensive income
–
–
–
–
(49)
–
(49)
Total comprehensive income for the year
–
–
–
–
(49)
498
449
Contributions by and distributions to owners
Issue of share capital – exercise of options
134
860
–
–
–
–
994
Share-based payments
–
–
–
484
–
–
484
Total contributions by and distributions to 
owners
134
860
–
484
–
–
1,478
31 December 2024
7,133
83,290
 7,051
2,491
(2,014)
(79,287)
18,664
The share capital comprises the nominal values of all shares issued. The share premium account comprises the amounts subscribed for 
share capital in excess of the nominal value, net of issuance costs. The capital redemption reserve comprises the amount transferred from 
deferred shares on redemption of the deferred shares.
The share options reserve represents cumulative share based payment charges. The foreign exchange translation reserve arises on 
retranslating the net assets of UK operations into US dollars. The retained earnings are all other net gains and losses and transactions with 
owners not recognised elsewhere.
The notes on pages 63 to 94 form part of these financial statements.
	
Corero Network Security plc  Annual Report and Accounts 2024
62

NOTES TO THE FINANCIAL STATEMENTS
1. GENERAL INFORMATION
Corero Network Security plc (Company 
number 02662978) is a public company 
limited by shares, incorporated in the United 
Kingdom under the Companies Act 2006 
and registered in England and Wales. The 
functional currency of the Company entity 
is GBP.
Presentation currency
These consolidated financial statements 
are presented in US dollars (‘$’) rounded to 
the nearest $’000 unless otherwise stated. 
US dollars represents the presentational 
currency of the Group as all commercial 
activity is denominated in US dollars as 
per industry standards.
The average $-GBP (‘GBP’) exchange rates 
used for the conversion of the Consolidated 
Monthly Income Statements for the year 
ended 31 December 2024 was between 
1.25 and 1.32 (2023: between 1.21 and 1.29). 
The closing $-GBP exchange rate used for 
the conversion of the Group’s assets and 
liabilities at 31 December 2024 was 1.25 
(2023: 1.27).
2. MATERIAL ACCOUNTING 
POLICIES
2.1 Basis of preparation
The Group financial statements have been 
prepared in accordance with UK adopted 
International Accounting Standards (‘UK 
adopted IFRS’) and those parts of the 
Companies Act 2006 relevant to companies 
which report in accordance with UK 
adopted IFRS.
2.2 Going concern
The financial statements have been 
prepared on a going concern basis.
The Directors have prepared detailed 
income statement, balance sheet and 
cash flow projections for the period to 30 
June 2026 (‘going concern assessment 
period’). The cash flow projections have 
been subjected to sensitivity analysis of 
the revenue, cost and combined revenue 
and cost levels which demonstrate that 
the Group and Company will maintain a 
positive cash balance through the going 
concern assessment period. As part of the 
sensitivity analysis, the Directors have noted 
that should the forecasted revenues not be 
achieved, mitigating actions can be taken to 
address any cash flow concerns.
These actions include deferral of capital 
expenditure, reduction in marketing and 
other variable expenditure alongside a 
hiring freeze.
The Directors are also not aware of any 
significant matters in the remainder of 
calendar 2025 that occur outside the going 
concern period that could reasonably 
possibly impact the going concern 
conclusion.
The Directors have also considered the 
geo-political environment, including rising 
inflation in some of our key markets and the 
conflict in Ukraine and the Middle East, and 
whilst the impact on the Group is currently 
deemed minimal, the Directors remain 
vigilant and ready to implement mitigation 
action in the event of a downturn in demand 
or an impact on operations.
On this basis, the Directors have therefore 
concluded that it is appropriate to prepare 
the financial statements on a going concern 
basis.
2.3 Basis of consolidation
The consolidated financial statements 
incorporate the results, assets, liabilities, 
and cash flows of the Company and each of 
its subsidiaries for the financial year ended 
31 December 2024.
Subsidiaries are entities controlled by the 
Group. Control is deemed to exist when 
the Group has all of the following elements: 
a) power over the subsidiary, b) exposure 
or rights to variable returns from that 
subsidiary, and c) ability to use its power 
to affect the amount of the return from the 
subsidiary. The results, assets, liabilities and 
cash flows of subsidiaries are included in the 
consolidated financial statements from the 
date control commences until the date that 
control ceases.
Where necessary, adjustments are made to 
the financial statements of subsidiaries to 
bring the accounting policies used into line 
with those used by the Group.
Intra-group balances and transactions are 
eliminated on consolidation.
2.4 Revenue
The Group’s revenue is derived from the 
following products and services:
	•
Appliance and perpetual software 
licences
	•
Software subscription licences for a 
defined term
	•
Support services for a defined term
	•
Installation and training services
	•
DDoS Protection as-a-Service (‘DDPaaS’) 
for a defined term
	•
SecureWatch Managed Service 
(enhanced security monitoring services) 
for a defined term
The element of DDPaaS revenues pertaining 
to as-a-Service assets is included in reported 
revenues and is recognised on a straight– 
line basis over the term of the contract.
Corero Network Security plc  Annual Report and Accounts 2024
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NOTES TO THE FINANCIAL STATEMENTS CONTINUED
Performance obligations, timing of revenue recognition and revenue recognition
Revenue is recognised when performance obligations are completed and control of the goods (appliances and software) transfer to the 
customer and services are delivered. Goods are shipped ex works (‘EXW’) from Corero, or Corero’s contract manufacturer, to the customer. 
The point at which the performance obligation of delivery of goods is fulfilled is at the point of EXW shipment to the customer and for 
software at the point of electronic transfer to the customer. Standard payment terms for customers are set at 30 days.
Revenue recognised on shipment (EXW) of appliance and 
software products (point in time)
Appliance, perpetual software licences and software subscription licences
Revenue recognised over-time (over the term of the contract)
Support, DDPaaS and SecureWatch Managed services
Revenue recognised once the service has been delivered
Installation and training services
Determining the transaction price
The contract price is determined by 
reference to the Corero Sales Quotation 
or DDPaaS Agreement and is a fixed 
price. Certain DDPaaS contracts have an 
element of the transaction value or all 
of the transaction value determined by 
reference to a share of the customers’ 
revenue generated from the Corero solution 
(‘Revenue Share’). This Revenue Share 
revenue is recognised when the Revenue 
Share is determined.
Corero does not have any other variable 
consideration payable by the customer 
and does not pay any consideration to the 
customer. There is no provision for purchase 
price adjustments, right of return or price 
concessions.
Allocating amounts to 
performance obligations
For contracts containing only a single 
performance obligation (annual support 
services, DDPaaS and SecureWatch 
Managed Service) there is no requirement to 
make an allocation of the contract price.
For contracts containing multiple products, 
the transaction price is allocated to the 
separate performance obligations based on 
relative stand–alone selling prices (‘SSP’). 
The SSP is determined using defined price 
lists and historic customer discount rates.
Incremental costs of obtaining a 
contract
Deferred sales commission relating to the 
support and DDPaaS revenue from a new 
sales contract is recorded in prepayments 
and amortised over five years. Corero 
follows the requirements of the IFRS 15 
standard with regards to the amortisation 
period which requires amortisation on a 
systematic basis that is consistent with the 
transfer to the customer of the goods or 
services to which the asset relates. The 
expectation, supported by historic evidence, 
is that customers will generally renew their 
support contracts for more than three years 
with the additional expectation of follow-
on hardware and software (and associated 
services) business from a significant number 
of existing customers. Based on this, and 
consistent with previous treatment, Corero 
has assessed that a reasonable period 
for capitalised sales commission to be 
amortised is five years. Periodic customer 
reviews will be undertaken to ascertain if 
there is any evidence that the value of the 
customer relationship has been negatively 
impacted, in which case the prepayment will 
be appropriately written down. Applying 
the practical expedient, Corero recognises 
the incremental costs of obtaining contracts 
as an expense when incurred if the 
amortisation period of the prepayment that 
Corero otherwise would have recognised is 
one year or less.
Fulfilment costs
Corero’s principal fulfilment costs relate 
to the costs of the Corero customer 
support team which delivers the customer 
support services, DDPaaS services and the 
SecureWatch Managed services. These costs 
are not separately allocated or identifiable 
against specific customers. Therefore, 
these costs are recognised in the period in 
which they are incurred in the Consolidated 
Income Statement. Refer to note 14 for 
details of deferred commissions recognised. 
Contract assets and liabilities
Contract assets arise when goods and 
services have been delivered and invoiced 
but payment is not yet due. Contract 
liabilities arise for future delivery of services 
which have been invoiced and payment 
is due. Contract liabilities are shown as 
deferred income in the Statement of 
Financial Position.
2.5 Interest income
Interest income, including income arising 
from finance leases and other financial 
instruments, is recognised using the 
effective interest method.
2.6 Government grants
Government grants are recognised at fair 
value when there is reasonable assurance 
that the Group will comply with the conditions 
attaching to them and the grant will be 
received. Grants related to purchase of assets 
are treated as deferred income and allocated 
to the Consolidated Income Statement over 
the useful lives of the related assets while 
grants related to expenses are netted off 
against the related item of expenditure in 
the Consolidated Income Statement.
2.7 Cost of sales
Cost of sales includes all direct costs 
associated with revenue generation, 
including goods directly related to revenue, 
services delivery, operation costs, DDoS as-
a-service depreciation and amounts charged 
by external third parties for services. 
Examples of such costs would include 
third-party appliance costs and third-party 
software licence costs.
Corero Network Security plc  Annual Report and Accounts 2024
64

2. MATERIAL ACCOUNTING 
POLICIES CONTINUED
2.8 Foreign currencies
Transactions in foreign currencies are 
translated at the exchange rate ruling 
at the date of each transaction. Foreign 
currency monetary assets and liabilities are 
retranslated using the exchange rates at the 
reporting date. Gains and losses arising from 
changes in exchange rates after the date of 
the transaction are recognised in profit or 
loss in the Consolidated Income Statement.
Non-monetary assets and liabilities that 
are measured in terms of historical cost 
in a foreign currency are translated at the 
exchange rate at the date of the original 
transaction.
In the consolidated financial statements, 
the net assets of the Group’s UK operations 
are translated from GBP into US dollars at 
the exchange rate at the reporting date. 
Income and expense items are translated 
into US dollars at the average exchange 
rates for the period. The resulting exchange 
differences are recognised in the foreign 
exchange translation reserve and in Other 
Comprehensive Income.
2.9 Intangible assets
Internally generated intangible 
assets
The Group’s internally generated 
intangible asset relates to its development 
expenditure.
Development expenditure is capitalised only 
when it is probable that future economic 
benefit will result from the project and the 
following criteria are met:
	•
the technical feasibility of the product 
and its availability for use or sale has 
been ascertained;
	•
adequate technical, financial and other 
resources are available to complete 
the development and sell or use the 
intangible asset;
	•
the Group can demonstrate the 
existence of a market for the output of 
the intangible asset or the intangible 
asset itself or, if it is to be used internally, 
the usefulness of the intangible asset;
	•
it is the intention of management to 
complete the intangible asset and use it 
or sell it; and
	•
the development costs can be measured 
reliably.
Expenditure not meeting these criteria, 
such as expenditure incurred on research, 
is expensed in the Consolidated Income 
Statement when it is incurred.
After initial recognition, internally generated 
intangible assets are carried at cost 
less accumulated amortisation and any 
impairment losses. Amortisation is charged 
once the asset is capable of generating 
economic benefits.
Acquired intangible assets
Identifiable intangible assets acquired as 
part of a business combination are initially 
recognised separately from goodwill, 
irrespective of whether the assets have 
been recognised by the acquiree before the 
business combination. An intangible asset is 
considered identifiable only if it is separable 
or if it arises from contractual or other legal 
rights, regardless of whether those rights are 
transferable or separable from the entity or 
from other rights and obligations.
Intangible assets acquired as part of a 
business combination and recognised by the 
Group are computer software and customer 
relationships.
Purchased computer software is carried at 
cost less accumulated amortisation and any 
impairment losses.
Customer contracts and the related 
customer relationships are carried at cost 
less accumulated amortisation and any 
impairment losses.
Amortisation
Intangible assets are amortised on a 
straight–line basis to reduce their carrying 
value to zero over their estimated useful 
lives. The following useful lives were applied 
during the year:
	•
Computer software acquired – three 
years straight line.
	•
Capitalised development expenditure 
– five years straight line.
Amortisation costs are included within 
operating expenses in the Consolidated 
Income Statement. Methods of amortisation 
and useful lives are reviewed, and if 
necessary adjusted, at each reporting date.
2.10 Property, plant 
and equipment
Depreciation commences when an asset is 
available for use. Depreciation is calculated 
so as to write off the cost or value of an 
asset, net of anticipated disposal proceeds, 
over the useful life of that asset as follows:
	•
Leasehold improvements – period of 
the lease (straight-line basis).
	•
Right-of-use assets – period of the lease 
(straight-line basis).
	•
Computer equipment, evaluation 
assets and DDoS Protection as-a-
Service assets – three years (straight-line 
basis).
	•
Fixtures and fittings – five years 
(straight-line basis).
Property, plant and equipment is stated at 
cost less accumulated depreciation and 
any impairment losses. Cost comprises 
the purchase cost of property, plant and 
equipment together with any directly 
attributable costs. Evaluation assets are 
used by customers during proof-of-concept 
trials. Evaluation assets are stated at cost 
less accumulated depreciation. When an 
evaluation asset is retained by a customer 
as part of a sale, the net book value of the 
evaluation asset is charged to cost of sales. 
Depreciation of DDoS Protection as-a-
Service assets is charged to cost of sales.
Subsequent costs are included in an 
asset carrying value or are recognised as 
a separate asset when it is probable that 
future economic benefits associated with the 
additional expenditure will flow to the Group 
and the cost of the item can be measured 
reliably. All other costs are charged to the 
Consolidated Income Statement as incurred.
Methods of depreciation, residual values and 
useful lives are reviewed, and if necessary 
adjusted, at each balance sheet date.
The gain or loss arising from the disposal or 
retirement of an item of property, plant and 
equipment is determined as the difference 
between the net disposal proceeds and the 
carrying amount of the item and included in 
the Consolidated Income Statement.
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NOTES TO THE FINANCIAL STATEMENTS CONTINUED
2.11 Inventory
Inventory is stated at the lower of cost or 
net realisable value. Cost is computed 
using standard cost, which approximates to 
actual cost, on a first-in, first-out basis. Rapid 
technological change and new product 
introductions and enhancements could 
result in excess or obsolete inventory, the 
value of which may not be recoverable.
To minimise this risk, the Group evaluates 
inventory levels and expected usage on 
a periodic basis and records valuation 
allowances as required.
2.12 Impairment
At each reporting date, the Group assesses 
whether there is any indication that its assets 
have been impaired. If any such indication 
exists, the recoverable amount of the asset 
is estimated in order to determine the 
extent of any impairment. If it is not possible 
to estimate the recoverable amount of the 
individual asset, the recoverable amount of 
the cash-generating unit (‘CGU’) to which 
the asset belongs is determined.
The recoverable amount of an asset or a 
CGU is the higher of its fair value less costs 
to sell and its value in use. The recoverable 
amount is calculated using the present value 
of the future cash flows expected to be 
derived from an asset or CGU. This present 
value is derived using a cost of capital rate 
that reflects current market assessments of 
the time value of money and of the risks 
specific to the asset for which future cash 
flow estimates have not been adjusted. 
If the recoverable amount of an asset is 
less than its carrying amount, the carrying 
amount of the asset or CGU is reduced to 
its recoverable amount. That reduction is 
recognised as an impairment loss.
An impairment loss relating to assets carried 
at cost less any accumulated depreciation 
or amortisation is recognised immediately in 
the Consolidated Income Statement.
Goodwill acquired in a business combination 
is, from the acquisition date, allocated to 
each of the CGUs or groups of CGUs that 
are expected to benefit from the synergies 
of the combination.
Goodwill is tested for impairment at least 
annually, and whenever there is an indication 
that the asset may be impaired.
An impairment loss is recognised for CGUs 
if the recoverable amount of the CGU is less 
than the carrying amount of the CGU. The 
impairment loss is allocated to reduce the 
carrying amount of the assets of the CGU 
by first reducing the carrying amount of any 
goodwill allocated to the CGU, and then 
reducing the carrying amounts of the other 
assets of the CGU pro-rata.
If an impairment loss subsequently reverses, 
the carrying amount of the asset or CGU 
is increased to the revised estimate of its 
recoverable amount but limited to the 
carrying amount that would have been 
determined had no impairment loss been 
recognised in prior years.
A reversal of an impairment loss is 
recognised in the Consolidated Income 
Statement. Impairment losses on goodwill 
are not subsequently reversed.
2.13 Leases
All leases are accounted for by recognising a 
right-of-use asset and a lease liability except 
for:
	•
leases with a duration of 12 months or 
less; and
	•
leases of low value assets.
Lease liabilities are measured at the present 
value of the contractual payments due to 
the lessor over the lease term, with the 
discount rate determined by reference to 
the rate implicit in the lease unless this is 
not readily determinable, in which case 
the Group’s incremental borrowing rate on 
commencement of the lease is used. To 
determine the incremental borrowing rate, 
the Group, where possible, uses recent third-
party financing received by the individual 
lessee as a starting point, adjusted to reflect 
changes in financing conditions since third-
party financing was received. The Group 
uses a build-up approach that starts with a 
risk-free interest rate adjusted for credit risk 
for leases held by the Group, which does not 
have recent third-party financing, and makes 
adjustments specific to the lease, e.g. term, 
country, currency and security.
If a readily observable amortising loan rate 
is available to the individual lessee (through 
recent financing or market data) which has a 
similar payment profile to the lease, then the 
Group uses that rate as a starting point to 
determine the incremental borrowing rate.
On initial recognition, the carrying value of 
the lease liability also includes:
	•
amounts expected to be payable under 
any residual value guarantee;
	•
the exercise price of any purchase option 
granted in favour of the Group if it is 
reasonably certain to assess that option; 
and
	•
any penalties payable for terminating the 
lease, if the term of the lease has been 
estimated on the basis of termination 
option being exercised.
Right-of-use assets are initially measured at the 
amount of the lease liability, reduced for any 
lease incentives received, and increased for:
	•
lease payments made at or before 
commencement of the lease;
	•
initial direct costs incurred; and
	•
the amount of any provision recognised 
where the Group is contractually required 
to dismantle, remove, or restore the 
lease.
Subsequent to initial measurement, lease 
liabilities increase as a result of interest 
charged at a constant rate on the balance 
outstanding and are reduced for lease 
payments made. Lease payments are 
analysed between capital and interest. 
The interest element is charged to the 
Consolidated Income Statement over the 
period of the lease. The capital element 
reduces the balance owed to the lessor.
Right-of-use assets are amortised on a 
straight-line basis over the remaining term 
of the lease or over the remaining economic 
life of the asset.
The total rentals payable under leases which 
are not recognised as a right-of-use asset 
and a lease liability (an ‘operating lease’) 
are charged to the Consolidated Income 
Statement on a straight-line basis over the 
lease term.
Corero Network Security plc  Annual Report and Accounts 2024
66

2. MATERIAL ACCOUNTING 
POLICIES CONTINUED
2.14 Taxation
The tax expense represents the sum of 
current tax and deferred tax.
Current tax
Current tax is based on taxable profit for the 
year and is calculated using tax rates and 
laws enacted or substantively enacted at the 
reporting date. Taxable profit differs from 
accounting profit either because items are 
taxable or deductible in periods different 
to those in which they are recognised in the 
financial statements (temporary differences), 
or because they are never taxable or 
deductible (permanent differences).
Deferred tax
Deferred tax on temporary differences at 
the reporting date between the tax bases 
of assets and liabilities and their carrying 
amounts for financial reporting purposes 
is accounted for using the balance sheet 
liability method.
Using the balance sheet liability method, 
deferred tax liabilities are recognised in 
full for all taxable temporary differences 
and deferred tax assets are recognised 
to the extent that it is probable that 
taxable profits will be available against 
which deductible temporary differences 
can be utilised. However, if the temporary 
difference arises from the initial recognition 
of goodwill or the initial recognition of an 
asset or liability in a transaction other than 
a business combination, that at the time of 
the transaction affects neither accounting 
nor taxable profit, it is not recognised as a 
deferred tax asset or liability.
Deferred taxation is measured at the tax rates 
and laws that are expected to apply when 
the asset is realised, or the liability settled, 
based on tax rates and laws enacted or 
substantively enacted at the reporting date.
2.15 Post-retirement benefits
The Group makes contributions in respect of 
certain employees to defined contribution 
pension plans under which it is required 
to pay fixed contributions to Group and 
personal pension funds.
Contributions to the schemes are based on 
a proportion of the employees’ earnings and 
are charged to the Consolidated Income 
Statement. The Group has no obligation 
beyond these contributions.
2.16 Financial instruments
The Group classifies financial instruments, or 
their component parts, on initial recognition 
as a financial asset, a financial liability, or an 
equity instrument in accordance with the 
substance of the contractual arrangement.
Financial assets and financial liabilities are 
recognised in the Group’s Statement of 
Financial Position when the Group becomes 
party to the contractual provisions of the 
instrument.
The particular recognition and measurement 
methods adopted for the Group’s financial 
instruments are disclosed below:
Trade and other receivables
Trade and other receivables are stated at 
their fair value at time of initial recognition, 
reflecting, where material, the time value 
of money. A provision for impairment of 
trade receivables is established when there 
is evidence that the Group has an expected 
credit loss over the lifetime of the assets 
based on historical trends. The simplified 
approach is used for assessing the expected 
credit loss on trade receivables, requiring 
the lifetime expected credit loss to be 
recorded as the provision for impairment.
Cash and cash equivalents
Cash and cash equivalents include cash on 
hand and short-term deposits with an original 
maturity of three months or less that are 
readily convertible to known amounts of cash.
Trade and other payables
Trade and other payables are not interest 
bearing and are stated at their fair value at 
time of initial recognition. Thereafter they 
are accounted for at amortised cost.
Debt obligations
Debt obligations include interest bearing 
bank borrowings which are stated at their 
fair value less transaction costs at time of 
initial recognition. Debt obligations are 
subsequently measured at amortised cost.
2.17 Equity instruments
An equity instrument is any contract that 
evidences a residual interest in the assets of 
the Company after deducting all its liabilities. 
Equity instruments issued by the Company 
are recorded at the proceeds received, net 
of directly attributable issue costs.
2.18 Employee share option 
schemes
The Group operates an equity-settled 
share-based compensation plan. The fair 
value of the employees’ services received 
in exchange for the grant of share options 
is measured at grant date and recognised 
as an expense on a straight-line basis over 
the vesting period, based on the Group’s 
estimate of shares that will eventually vest. 
Fair value is determined by reference to 
the Black-Scholes option pricing model. If a 
granted option is cancelled and regranted, 
the increase in fair value of the granted 
option measured immediately before and 
after the cancellation and regrant is added 
to the value of the employee’s service 
received in exchange for the grant. If an 
option grant is cancelled, the previously 
recorded expense is credited to the 
Consolidated Income Statement.
At each reporting date, the Group revises its 
estimate of the number of options that are 
expected to become exercisable.
When share options are exercised, the 
proceeds received, net of any transaction 
costs, are credited to share capital (nominal 
value) and share premium.
2.19 Standards and 
Interpretations not yet effective
The Group has applied the following 
standards and amendments for the first time 
for its annual reporting period commencing 
1 January 2024:
	•
Lease liability in a sale and leaseback 
transaction (Amendments to IFRS 16) 
	•
Classification of Liabilities as Current or 
Non-current (Amendments to IAS 1)
	•
Non-Current Liabilities with Covenants 
(Amendments to IAS 1)
	•
Supplier Finance Arrangements –
Amendments to IAS 7 and IFRS 7
The amendments listed above did not have 
any impact on the amounts recognised in prior 
periods and are not expected to significantly 
affect the current or future periods.
There are a number of standards, 
amendments to standards, and interpretations 
which have been issued that are effective in 
future accounting periods that the Group has 
decided not to adopt early as they will not 
have a significant impact on the presentation 
of the Group financial statements.
Corero Network Security plc  Annual Report and Accounts 2024
67
Overview
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NOTES TO THE FINANCIAL STATEMENTS CONTINUED
3. CRITICAL ACCOUNTING 
JUDGEMENTS AND KEY 
SOURCES OF ESTIMATION 
UNCERTAINTY
3.1 Critical judgements in 
applying the Group’s accounting 
policies
In the process of applying the Group 
accounting policies, the following judgements 
have had a significant effect on the amounts 
recognised in the financial statements:
Internally generated research and 
development costs
Management monitors progress of internal 
research and development projects. 
Judgement is required in distinguishing 
the research phase from the development 
phase. Development costs are recognised 
as an asset when all criteria are met and a 
project has passed the feasibility phase, 
whereas research costs are expensed as 
incurred. Management monitors whether the 
recognition requirements for development 
costs continue to be met. This is necessary 
as the economic success of any product 
development is uncertain.
Going concern
The Directors have reviewed the future profit 
and cash flow projections in conjunction 
with the current economic climate in order 
to express an opinion on the adequacy of 
working capital and the ability to continue 
as a going concern for the foreseeable 
future. The methodology contained in the 
projections is detailed in the note 2.2.
3.2 Key accounting estimates 
and assumptions
Key assumptions concerning the future and 
other key sources of estimation uncertainty 
that have a significant risk of causing a 
material adjustment to the carrying amounts 
of assets and liabilities within the next 
financial year are as follows:
Impairment of intangible assets 
and property, plant and equipment
The Group tests goodwill at least annually 
for impairment, and whenever there is an 
indication that the asset may be impaired. 
All other intangible assets and property, 
plant and equipment are tested for 
impairment when indicators of impairment 
exist. Impairment is determined with 
reference to the higher of fair value less 
costs to sell and value in use. Fair value less 
costs to sell is estimated using discounted 
future cash flows. Significant assumptions 
are made in estimating future cash flows 
about future events including future 
market conditions, future growth rates and 
appropriate discount rates. Changes in 
these assumptions could affect the outcome 
of impairment reviews. Details of the main 
assumptions used in the assessment of the 
carrying value of the Group’s CGU are set 
out in note 9.
Standalone Selling Price – revenue 
recognition
On a regular basis the Group analyses the 
selling prices for each deal compared to 
the current Standalone Selling Price (‘SSP’). 
This analysis includes grouping similar 
deals based on qualitative factors such as 
customer profile, size, and region, together 
with a quantitative comparison to the 
then current SSP. SSP fair value prices are 
adjusted for future quarters if management 
identifies a pattern of variances of greater 
than 10% between actual selling prices and 
the then current SSP.
4. SEGMENT REPORTING
Operating segments
The Group is managed according to one 
business unit, Corero Network Security, 
which makes up the Group’s reportable 
operating segment. This business unit 
forms the basis on which the Group reports 
its operating segment information to the 
Board, which management consider to be 
the Chief Operating Decision Maker for the 
purposes of IFRS 8 Operating Segments.
The Group’s revenues from external 
customers for the country of the Group’s 
domiciles and each individually material 
country (those over 10% of Group revenues) 
are as follows:
2024
$’000
2023
$’000
United States
17,488 
15,855
United Kingdom
1,756 
2,122
Others
5,315 
4,372
Total
24,559
22,349
Revenues from external customers are 
identified on the basis of invoicing systems 
and adjusted to take into account the 
difference between invoiced amounts and 
deferred revenue adjustments as required 
by IFRS.
In 2024, no individual customer accounted 
for over 10% of revenue. The Group’s largest 
customer accounted for 9.0% of 2024 
revenue (2023: largest customer accounted 
for 9.3% of revenue).
The revenue is analysed as follows for each 
revenue category:
2024
$’000
2023
$’000
Software licence and 
appliance revenue
10,066 
8,186
DDoS Protection as-a-
Service revenue
 5,912 
5,599
Maintenance and 
support services revenue
8,581 
8,564
Total
24,559
22,349
The revenue is analysed by timing of delivery 
of goods or services as:
2024
$’000
2023
$’000
Point in time delivery
10,066 
8,186
Over time
14,493 
14,163
Total
24,559
22,349
No unsatisfied performance obligations 
arise except from those revenues which 
are recognised over time. See note 18 for 
further details.
Corero Network Security plc  Annual Report and Accounts 2024
68

4. SEGMENT REPORTING CONTINUED
Non-current assets
The Group’s non-current assets located in countries of domicile and in each material country are as follows:
2024
$’000
2023
$’000
United States
10,617 
9,698
United Kingdom
5,879 
5,055
Total
16,496 
14,753
Contract balances
Contract assets
Contract liabilities
2024
$’000
2023
$’000
2024
$’000
2023
$’000
At 1 January
2,783
2,793
7,483
5,608
Transfers in the period to/from trade receivables 
from/to contract assets
(891)
(10)
–
–
Amounts included in contract liabilities that were recognised 
as revenue in the period from the opening balance
–
–
(3,217)
(4,085)
Amounts included in contract liabilities that were recognised 
as revenue from amounts invoiced in the period
–
–
(11,275)
(9,892)
Amounts invoiced in the period and not recognised as revenue 
in the period
–
–
17,351
15,852
At 31 December
1,892
2,783
10,342
7,483
5. PROFIT/(LOSS) FOR THE YEAR
The following items have been included in arriving at the Group’s (loss)/profit for the year before taxation:
2024
$’000
2023
$’000
Unrealised loss on intercompany loan
–
429
Finance expense – Clydesdale loan interest and fees
8
164
Finance expense – lease liability
28
17
Research and development expenditure not capitalised
1,643
1,981
Inventory recognised as an expense in cost of sales
1,011
1,354
Lease expenses for short-term leases
77
58
Amortisation of acquired intangible assets (note 10)
–
2
Research & development expenditure credit
(245)
(201)
Amortisation of capitalised development expenditure (note 10)
1,588
1,504
Depreciation of property, plant and equipment (note 11)
420
267
DDoS Protection as-a-Service asset depreciation (note 11)
217
272
Auditor’s remuneration
2024
$’000
2023
$’000
Remuneration received by the Company’s auditor for the audit of these financial statements
132
127
The audit of the financial statements of other Group companies
48
47
180
174
Corero Network Security plc  Annual Report and Accounts 2024
69
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NOTES TO THE FINANCIAL STATEMENTS CONTINUED
6. TAX ON (LOSS)/PROFIT ON ORDINARY ACTIVITIES
2024
$’000
2023
$’000
Current tax (charge)/credit
(56)
(17)
Total
(56)
(17)
The tax assessed on the profit on ordinary activities for the year differs from the weighted average UK corporate rate of tax of 25.0% per the 
2023/2024 governmental budgets (2023: 25.0%). The differences are reconciled below:
2024
$’000
2023
$’000
Total tax reconciliation
Profit/(loss) before taxation
555
(153)
Theoretical tax charge at UK corporation tax rate 23.5% (2023: 23.5%)
138
(36)
Effect of:
– Expenditure that is not tax deductible
212
103
– R&D expenditure credits
(46)
–
– Tax losses and other temporary differences where deferred tax not recognised
(248)
(50)
Taxation charge
56
17
Factors affecting future tax charges
As at 31 December 2024, the Group’s cumulative fixed asset timing differences were $129,000 (2023: $131,000) and no deferred tax asset 
has been recognised in respect of these items.
Tax losses at 31 December 2024 amounted to $86.2 million (2023: $88.3 million). This comprised UK tax losses of $14.9 million and US tax 
losses of $71.3 million. The utilisation of US tax losses which are all attributable to Corero Network Security, Inc. is subject to the provisions 
of Section 382 of the United States Treasury Internal Revenue Code of 1986, as amended. Corero Network Security, Inc did not undergo an 
ownership change within the meaning of Section 382 for the period 1 February 2017 to 31 December 2021, and thus $10.8 million of the US 
tax losses are available at full value to set-off against future taxable profits. The utilisation of the remaining US tax losses of $60.5 million will 
be subject to meeting the change of ownership test for the period prior to 1 February 2017. This test will be undertaken as and when these 
tax losses are required to offset against taxable profits of Corero Network Security, Inc. US tax losses expire 20 years from the end of the 
accounting period in which the loss arose.
UK tax losses arising in the period prior to 1 April 2017 can only used against taxable profits of the same trade; after 1 April 2017 the losses 
can be used against total Company profits.
Deferred tax assets of $3.7 million (2023: $3.65 million) relating to the UK tax losses (applying a tax rate of 25.0% to tax losses expected to 
unwind after 1 April 2023, the rate substantively enacted on 10 June 2021) and the deferred tax assets of $15.0 million (2023: $15.5 million) 
relating to the US tax losses and taxable temporary fixed asset differences (applying a tax rate of 21.0%) have not been recognised due to 
uncertainties as to the extent and timing of their future recovery.
Corero Network Security plc  Annual Report and Accounts 2024
70

7. EARNINGS PER SHARE
Earnings per share is calculated by dividing the earnings attributable to ordinary shareholders of the Company by the weighted average 
number of ordinary shares in issue during the year. Diluted earnings per share is calculated by dividing the earnings attributable to ordinary 
shareholders of the Company by the weighted average number of ordinary shares in issue during the year plus the number of ordinary 
shares to be issued from the exercise of attributable share options.
2024
$’000
2023
$’000
Basic Earnings per share 
From profit/(loss) for the year
0.1
0.0
Diluted Earnings per share 
From profit/(loss) for the year
0.1
0.0
2024
2023
Basic earnings/(loss) per share
Profit
$’000
Weighted
average
number of
1p shares
Thousand
Profit
per share
Cents
Loss
$’000
Weighted
average
number of
1p shares
Thousand
Loss
per share
Cents
From profit/(loss) for the year
498
509,096
0.1
(170)
500,221
0.0
Diluted earnings/(loss) per share
Basic earnings/(loss) per share
498
509,096
0.1
(170)
500,221
0.0
Dilutive effect of share options
–
56,383
–
–
–
–
Diluted earnings per share
498
565,479
0.1
(170)
500,221
0.0
8. KEY PERFORMANCE MEASURES
EBITDA
Earnings before interest, tax, depreciation and amortisation (‘EBITDA’) is defined as earnings from operations before interest, tax, 
depreciation and amortisation charges. The following is a reconciliation of EBITDA for the periods presented:
Year ended 
31 December 
2024
$’000
Year ended 
31 December 
2023
$’000
Profit/(loss) before taxation
555 
(153)
Adjustments for:
Finance income
(99)
(44)
Finance expense
8
164
Finance lease interest costs
28
17
Depreciation – owned assets
250
151
Depreciation – right-of-use assets
170
116
Amortisation of acquired intangible assets
–
2
Amortisation of capitalised development expenditure
1,588
1,504
EBITDA
2,500
1,757
Corero Network Security plc  Annual Report and Accounts 2024
71
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NOTES TO THE FINANCIAL STATEMENTS CONTINUED
9. GOODWILL
Group
$’000
Cost
At 1 January 2024
17,983
At 31 December 2023
17,983
At 31 December 2024
17,983
Impairment
At 1 January 2023
(8,992)
At 31 December 2023
(8,992)
At 31 December 2024
(8,992)
Carrying amount
At 1 January 2023
8,991
At 31 December 2023
8,991
At 31 December 2024
8,991
Goodwill is tested at least annually for impairment and when there are indications that goodwill might be impaired.
Goodwill is allocated to the Group’s single cash generating unit (‘CGU’), Corero Network Security (‘CNS’).
The recoverable amount for the CNS CGU was determined based on a discounted cash flow calculation to calculate fair values less costs 
to sell using cash flow projections over a five-year period (2023: 10-year period). The discounted cash flow approach is a level 3 fair value 
calculation in the IFRS 13 fair value hierarchy.
The key assumptions for the discounted cash flow calculation are those regarding revenue growth and discount rates as summarised in the 
table below and commented on below:
2024
2023
Forecast cash flow period
Years 1-2
Years 1-2
Extrapolated cash flow period
Years 3-5
Years 3-10
Cumulative annual growth rate (‘CAGR’) for revenue used for the forecast/extrapolated periods
14.0%
9.5%
Growth rates (‘CAGR’) used for the forecast/extrapolated periods:
Year 1–2 (forecast period)
14.0%
9.0%
Years 3–5 (extrapolated period)
14.0%
15.0%
Years 6–10 (extrapolated period)
n/a
6.5%
Revenue growth rate used beyond the extrapolated period
3.3%
2.5%
Discount rate
13.7%
18.5%
The pre-tax cash flows for the forecast period are derived from the most recent financial budget for the year ending 31 December 2025 
(‘2025 Budget’) and the plan for the year ending 31 December 2026 (‘2026 Plan’) approved by the Board, with a sensitivity reflecting prior 
year experience and progress made in 2024 (9% applied to the 2025 Budget revenue and 13% to the 2026 Plan revenue). The extrapolation 
for the period 2027 to 2029  is based on management estimates (with the key assumptions set out below).
The future pre-tax cash flows are discounted by a WACC of 13.7% (2023: 18.5%).
The key assumptions underlying the cash flow projections and which the recoverable amount is most sensitive to are (i) the revenue growth 
rates forecast and extrapolated for the period 2027 to 2029 (ii) and the discount rate.
The cash flow forecasts assume a CAGR revenue growth of 14% in the period 2027 to 2029 (2023: 15% for the period 2025 to 2029) and the 
period 2030 to 2034 now falls into the terminal value part of the calculation (2023: 6.5% for the period 2029 to 2033). The cash flow forecasts 
reflect a sensitivity of 9% applied to the CNS 2025 Budget revenues and a sensitivity of 13% applied to the 2026 Plan revenues (and a 
sensitivity of 5% to 2025 and 2026 operating costs and capital expenditure) reflecting prior year experience. The management of the Group 
believe these growth rates are appropriate for the forecasts given the significant progress the business made in 2024, the strategy for 2025 
which is focused on accelerated go-to-market strategy and continued investment in current and new products. This strategy is expected to 
deliver further increases in revenue in the forecast period. 
Corero Network Security plc  Annual Report and Accounts 2024
72

9. GOODWILL CONTINUED
The assumed growth rates are supported by the fact that the IT security market is forecast to grow strongly for the foreseeable future. The 
DDoS market is expected to reach $9.6 billion by 2029 (Source: Verified Market Research DDoS Protection and Mitigation Market Size and 
Forecast, 2025) – a CAGR of 13.2% during this period.
The above market growth rates used in the future cash flow assumptions reflect growth that has commenced for the Group, and which 
is forecast to continue with the Group’s accelerated GTM strategy. In addition, the business’s strategy, aside from greater sales growth 
penetration, is to continue to develop its product and solution offerings to retain its market leadership technological credentials in its 
chosen markets, thereby providing the opportunity to generate above market average growth rates.
The growth rate assumed in the period beyond the five-year extrapolation period of 3.3% is considered reasonable as historically IT spend 
has exceeded GDP growth.
The discount rate is based on a cost of equity using the Capital Asset Pricing Model with the key inputs being a risk-free interest rate 
estimate of 4.55% (based on 10-year US government bonds) (2023: 4.0%), comparable company betas, an equity risk premium of 6.7% 
(2023: 6.2%), and small company risk premium of 4.5% (2023: 4.5%). The WACC has been initially assessed based on that fact that the 
Group had no debt at 31 December 2024 (31 December 2023: nil), and adjusted to reflect an appropriate market rate for WACC if the 
Group were to hold debt at this time. The WACC used in the valuation reflects current market assessments of the time value of money and 
the risks specific to the Group.
As stated above, the valuation to support the value in use of the CNS CGU is sensitive to changes in the cash flow forecasts and the 
discount rate assumptions, and there is no absolute guarantee that the expected growth will be achieved. If the discount rate is increased 
from 13.7% to 48%, this would mathematically result in an impairment of the carrying value of goodwill of $9 million meaning the goodwill 
would be fully impaired. If the sensitivity of 9% applied to the CNS 2025 Budget and 13% to the 2026 Plan revenues (and sensitivity of 5% 
to CNS 2025 Budget and 2026 Plan operating costs and capital expenditure) was increased to 35% for both the CNS 2025 Budget and 
2026 Plan revenues (and sensitivity of 17% to both CNS 2025 Budget and 2026 Plan operating costs and capital expenditure), this would 
mathematically result in an impairment of the carrying value of goodwill of $9 million meaning the goodwill would be fully impaired.
Apart from the considerations in determining the value in use of the CNS CGU extensively described above, the management of the Group 
is not currently aware of any other reasonably possible changes that would necessitate changes in its key estimates.
Corero Network Security plc  Annual Report and Accounts 2024
73
Overview
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Corporate Directory

NOTES TO THE FINANCIAL STATEMENTS CONTINUED
10. INTANGIBLE ASSETS 
Capitalised 
development 
expenditure 
$’000
Computer 
software
$’000
Customer 
relationships 
$’000
Total
$’000
Cost
At 1 January 2023
25,768
6,017
197
31,982
Additions
1,824
–
–
1,824
At 31 December 2023 and at 1 January 2024
27,592
6,017
197
33,806
Additions
3,190
–
–
3,190
At 31 December 2024
30,782
6,017
197
36,996
Amortisation
At 1 January 2023
(21,268)
(6,015)
(197)
(27,480)
Charge for year
(1,504)
(2)
–
(1,506)
At 31 December 2023 and at 1 January 2024
(22,772)
(6,017)
(197)
(28,986)
Charge for year
(1,588)
–
–
(1,588)
At 31 December 2024
(24,360)
(6,017)
(197)
(30,574)
Net book value
At 31 December 2024
6,422
0
0
6,422
At 31 December 2023
4,820
–
–
4,820
At 1 January 2023
4,500
2
–
4,502
During the year ended 31 December 2024, $3.2 million of costs were capitalised in relation to development expenditure (2023: $1.8 million) 
and amortisation of $1.6 million was charged (2023: $1.5 million). 
Capitalised development expenditure relates to ongoing development by the Company in the following areas:
	•
SmartWall ONE product development – Corero’s Engineering team develop and enhance Corero’s SmartWall ONE product and the 
cost of this development time is capitalised accordingly. $2.3 million of cost was capitalised during 2024 (2023: $1.8 million). A key 
development during the year related to the launch of the Company’s new hardware appliance, Network Threat Detector (‘NTD’) 3400, a 
400G enhancement to the SmartWall ONE DDoS protection appliance. Assets used in the development of the 400G product suite have 
also been capitalised; $0.5 million of asset cost was capitalised during 2024 (2023: nil).
	•
Corero Observability & Resiliency Ecosystem (‘CORE’) product development – Corero’s new SaaS cloud-based availability protection 
platform was launched in late 2024, with development being capitalised throughout the year. A highly adaptive innovation, CORE will 
deliver advanced defence capabilities, providing greater flexibility and cost-efficiency to keep organisations secure. $0.2 million of cost 
was capitalised during 2024 (2023: nil).
	•
Threat Research Team (‘TRT’) product development – Corero’s TRT generates new intellectual property that improves existing products 
and services and is used by Corero’s Engineering team to upgrade product capabilities. Customers who pay for this service receive 
regular updates to their product for these new known threats. Other customers will receive updates when the next major release is 
released by the Engineering team. $0.2 million of cost was capitalised during 2024 (2023: nil).
Corero Network Security plc  Annual Report and Accounts 2024
74

11. PROPERTY, PLANT AND EQUIPMENT
Group
Computer 
equipment 
$’000
Sales 
evaluation 
assets
$’000
DDoS 
protection 
as-a-Service 
assets
$’000
Fixtures  
and fittings
$’000
Leasehold 
improvements
$’000
Right-of-use 
assets
$’000
Total
$’000
Cost
1 January 2023
1,091
187
1,748
103
104
344
3,577
Additions
131
136
182
–
–
363
812
Transfers
–
(8)
8
–
–
–
–
Disposals
(403)
(105)
–
–
–
–
(508)
Foreign currency translation
8
22
37
–
1
–
68
At 31 December 2023 
and at 1 January 2024
827
232
1,975
103
105
707
3,949
Additions
115
343
331
–
–
–
789
Disposals
(33)
(32)
(606)
–
–
–
(671)
Foreign currency translation
(2)
(1)
(12)
–
–
–
(15)
At 31 December 2024
907
542
1,688
103
105
707
4,052
Depreciation
At 1 January 2023
(984)
(96)
(1,369)
(92)
(88)
(282)
(2,911)
Charge for year
(66)
(62)
(272)
(7)
(16)
(116)
(539)
Transfers
–
3
(3)
–
–
–
–
Disposals
403
75
–
–
–
–
478
Foreign currency translation
(6)
–
(28)
–
(1)
–
(35)
At 31 December 2023 
and at 1 January 2024
(653)
(80)
(1,672)
(99)
(105)
(398)
(3,007)
Charge for year
(105)
(141)
(217)
(4)
–
(170)
(637)
Disposals
33
24
606
–
–
–
663
Foreign currency translation
1
7
7
–
–
–
12
At 31 December 2024
(724)
(190)
(1,279)
(103)
(105)
(568)
(2,969)
Net book value
At 31 December 2024
183
352
409
–
–
139
1,083
At 31 December 2023
174
152
303
4
–
309
942
At 1 January 2021
107
91
379
11
16
62
666
DDoS Protection as-a-Service assets’ depreciation is charged to cost of sales.
Corero Network Security plc  Annual Report and Accounts 2024
75
Overview
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Financial Statements
Corporate Directory

NOTES TO THE FINANCIAL STATEMENTS CONTINUED
12. LEASES
Right-of-use assets
2024
$’000
2023
$’000
Right-of-use asset
707
707
Accumulated depreciation
(568)
(398)
Total carrying amount of Right-of-use assets
139
309
Reconciliation of the carrying amount of lease assets at the beginning and end of the current and previous financial years are set out below:
2024
$’000
2023
$’000
Opening carrying amount
309
62
Additions
–
363
Depreciation
(170)
(116)
Closing carrying amount
139
309
The Group leases buildings for its offices under agreements of two to four years with, in some cases, options to extend. Options to extend 
current leases have not been included in lease calculations as the Group did not have sufficient certainty at the time of commencement of 
the lease as to whether such options would be taken up. On renewal, the terms of the leases will be renegotiated.
The current lease on the US office in Marlborough, Massachusetts ends on 31 March 2025. In January 2025, an extension was agreed to this 
lease for a further 5 years and 2 months, now ending on 31 May 2030 on favourable terms. The new Right-of-Use Asset and Lease Liability 
will be recognised in the 2025 financial year. 
During the prior year, the Group entered into a lease agreement with Keysight Technologies for lease of equipment by the Corero 
Engineering department. This lease was recognised as a Right-of-Use Asset addition of $218,000 in the year, with a corresponding lease 
liability recognised. The lease runs for 36 months ending 31 July 2026. Carrying amount of the Right-of-Use Asset at 31 December 2024 is 
$118,000 (2023: $187,000).
Lease liabilities
2024
$’000
2023
$’000
At 1 January
315
78
Additions
–
363
Payments
(193)
(143)
Interest cost
28
17
At 31 December
150
315
2024
$’000
2023
$’000
Within 1 year
102
164
Between 2 and 5 years
48
151
At 31 December
150
315
The Directors consider that the carrying amount of lease liabilities approximates to their fair value. All lease liabilities are held in US dollars 
within the Group.
Corero Network Security plc  Annual Report and Accounts 2024
76

13. INVENTORIES
2024
$’000
2023
$’000
Gross inventory
454
160
Less: provision for impairment
(65)
(64)
Net inventory
389
96
Net inventory comprises finished goods and raw materials. The value of inventory recognised as an expense in cost of sales was $1.0 million 
(2023: $1.4 million).
14. TRADE AND OTHER RECEIVABLES
2024
$’000
2023
$’000
Trade receivables
4,407
2,306
Contract assets (note 4)
1,892
2,783
Less: provision for impairment of trade receivables*
(314)
(25)
Net trade receivables
5,985
5,064
Other debtors
778
179
Prepayments
2,922
1,827
Deferred commissions
1,605
1,357
11,290
8,427
* The movement has not been presented in the Consolidated Income Statement as the charge is not considered material.
None of the Company’s trade and other receivables are secured by collateral or on a credit enhancement (2023: None).
The Group applies the simplified approach to measuring expected credit losses using a lifetime expected credit loss (‘ECL’) for trade receivables 
and contract assets. To measure expected credit losses on a collective basis, trade receivables and contract assets are grouped based on a 
similar credit risk and aging. The expected loss rates are based on the Group’s historical credit losses experienced over a two-year period prior 
to the period end. The historical loss rates are then adjusted for current and forward-looking information on macroeconomic factors affecting 
the Group’s customers. The Group has identified gross domestic product growth rates, unemployment rates and inflation rates as the key 
macroeconomic factors in the countries in which the Group operates. The Directors consider that the carrying amount of trade and other 
receivables approximates their fair value. The Group assesses the credit risk and credit worthiness of potential customers on a case by case basis. 
During 2024, a specific provision has been recognised for $0.3 million in relation to three invoices which are at risk at 31 December 2024. No 
further ECL provision has been recognised or released in the year. During the year, $0.5 million of deferred commission was amortised (2023: $0.4 
million). On that basis, the loss allowance as at 31 December 2024 and 31 December 2023 was determined as follows for trade receivables:
61-90 days  
past due
91-120 days 
past due
121+ days  
past due
2024
Expected credit loss rate
0.574%
0.574%
0.574%
Year end balances outstanding
166
72
2,088*
Adjusted year end balance
166
72
60
Expected credit loss allowance
1
–
–
*$1.7m of this amount relates to invoices with multi-year payment terms which are not due yet and so have been excluded from any ECL provision calculations. 
$0.3m of this amount has been provided for already and so has also been excluded from the calculations.
Corero Network Security plc  Annual Report and Accounts 2024
77
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NOTES TO THE FINANCIAL STATEMENTS CONTINUED
14. TRADE AND OTHER RECEIVABLES CONTINUED
61-90 days  
past due
91-120 days 
past due
121+ days  
past due
2023
Expected credit loss rate
0.274%
0.274%
0.274%
Year end balances outstanding
83
40
48
Adjusted year end balance
83
40
48
Expected credit loss allowance
-
-
-
The maturity profile of trade and other receivables is set out in the table below:
2024
$’000
2023
$’000
In one year or less, or on demand
8,769
6,914
In more than one year, but not more than five years
2,520
1,513
11,290
8,427
The analysis of trade and other receivables by foreign currency is set out in the table below:
2024
$’000
2023
$’000
US dollars
8,429
6,200
UK pound sterling
2,861
2,227
11,290
8,427
The Group’s foreign currency receivables are denominated in the functional currency of the subsidiaries in which they arise. There is no 
impact on the result for the year from exchange rate movements on such financial instruments.
An asset of $1.6 million is held in relation to Deferred commissions at 31 December 2024 (2023: $1.4 million). Amortisation of $0.4 million 
was charged to the income statement in FY 2024 (2023: $0.4 million). 
Corero Network Security plc  Annual Report and Accounts 2024
78

15. TRADE AND OTHER PAYABLES 
2024
$’000
2023
$’000
Trade payables
1,574
1,399
Other payables
114
619
Accruals
2,652
1,884
4,340
3,902
None of the Group or Company’s trade and other payables are secured by collateral or credit enhancements.
The Directors consider that the carrying amount of trade and other payables approximates their fair value. 70% (2023: 74%) of the trade and 
other payables are due in less than three months.
The analysis of trade and other payables by foreign currency is set out in the table below:
2024
$’000
2023
$’000
US dollars
2,998
2,123
UK pound sterling
1,342
1,779
340
3,902
The Group’s foreign currency payables are denominated in the functional currency of the subsidiaries in which they arise. There is no impact 
on the result for the year from exchange rate movements on such financial instruments.
16. BORROWINGS
There are no external borrowings held by the Group at 31 December 2024 (2023: nil). The RCF was closed in February 2024 with all fees due 
paid at that time.
17. FINANCIAL INSTRUMENTS
The Group’s financial instruments are categorised as shown below:
Book Value
2024
$’000
Book Value
2023
$’000
Financial assets
Trade and other receivables
6,763
5,243
Cash
5,321
5,160
12,084
10,403
Book Value
2024
$’000
Book Value
2023
$’000
Financial liabilities
Trade and other payables
(4,340)
3,902
Lease liabilities
(150)
315
(4,490)
4,217
For the purpose of this note financial assets – trade and other receivables exclude prepayments.
The Group manages liquidity and credit risk in line with the financial risk management objectives and policies as set out on page 32.
At the present time the Group does not have significant exposure interest rate risk. There are no differences between the fair values and 
book values held by the Group.
Corero Network Security plc  Annual Report and Accounts 2024
79
Overview
Strategic Report
Governance
Financial Statements
Corporate Directory

NOTES TO THE FINANCIAL STATEMENTS CONTINUED
18. CONTRACT LIABILITIES
2024
$’000
2023
$’000
Current
6,861
4,992
More than one year but less than five years
3,481
2,491
10,342
7,483
The Group’s contract liability balance will be recognised as revenue evenly over the remaining term of the service and support agreements 
in place. The service and support agreements expire at various times throughout the year with no particular seasonality.
19. PENSIONS
The Group’s pension arrangements are operated through defined contribution schemes.
Defined contribution schemes
2024
$’000
2023
$’000
Defined contribution pension costs
303
245
20. SHARE CAPITAL
Authorised share capital
The authorised share capital comprises 745,821,970 (2023: 745,821,970) ordinary shares of 1 penny (‘p’) (1.4 cents (‘c’)) each. 
Issued ordinary share capital
$’000
1 January 2023
499,953,971 ordinary shares of 1p each
6,980
230,000 ordinary shares of 1p each
3
1,344,497 ordinary shares of 1p each
16
31 December 2023
501,528,468 ordinary shares of 1p each
6,999
300,000 ordinary shares of 1p each
4
7,000,000 ordinary shares of 1p each
88
500,000 ordinary shares of 1p each
6
1,000,000 ordinary shares of 1p each
13
1,833,333 ordinary shares of 1p each
23
3,333 ordinary shares of 1p each
–
31 December 2024
512,165,134 ordinary shares of 1p each
7,133
Corero Network Security plc  Annual Report and Accounts 2024
80

21. SHARE PREMIUM
$’000
1 January 2023
82,284
Issued by way of option exercises
230,000 ordinary shares of 4.25p each (5.37c)
13
Issued by way of new shares allotted to CEO
1,344,497 ordinary shares of 8p each (9.9c)
133
31 December 2023
82,430
Issued by way of option exercises
300,000 ordinary shares of 4.25p each (5.4c)
16
7,000,000 ordinary shares of 4.25p each (5.4c)
375
500,000 ordinary shares of 5.75p each (7.2c)
36
1,000,000 ordinary shares of 12.0p each (15.0c)
150
1,833,333 ordinary shares of 12.0p each (15.4c)
283
3,333 ordinary shares of 5.75p each (7.5c)
–
31 December 2024
83,290
Consideration received in excess of the nominal value is included in share premium, less registration, commission, and professional fees. 
Transaction costs amounted to $5,000 during 2024.
22. EMPLOYEES AND DIRECTORS
Employee expenses, including Directors, during the period
Total 
2024
$’000
Total 
2023
$’000
Wages and salaries
13,758 
12,694
Social security costs
1,184 
1,355
Share-based payments
484 
336
Other pension costs
303 
245
15,729 
14,630
Average monthly numbers of employees (including Directors) employed
2024
Number
2023
Number
Sales and marketing
29
25
Technical, support and services
48
43
Management, operations and administration
10
8
87
76
Corero Network Security plc  Annual Report and Accounts 2024
81
Overview
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Financial Statements
Corporate Directory

NOTES TO THE FINANCIAL STATEMENTS CONTINUED
22. EMPLOYEES AND DIRECTORS CONTINUED
Directors, being the Key Management Personnel
2024
Salary 
& fees 
$’000
Bonus
$’000
Benefits
$’000
Pension
$’000
Subtotal
$’000
Options
$’000
Company 
National 
Insurance 
Contributions
$’000
Total
2024
$’000
Directors
Ashley Stephenson
373
126
21
4
524
-
10
534
Andrew Miller
41
-
-
-
41
-
4
45
Carl Herberger1
350
247
27
4
628
362
10
1,000
Jens Montanana
40
-
-
-
40
-
-
40
Peter George
43
-
-
-
43
-
-
43
Phil Richards2
128
-
-
7
135
(3)
17
149
Richard Last
41
-
-
-
41
-
4
45
Rob Scott3
33
-
-
-
33
-
-
33
1,049
373
48
15
1,485
-
45
1,889
1 Carl Herberger was appointed to the Board effective 1 January 2024 and his remuneration has been pro-rated accordingly. 
2 Phil Richards resigned from the Board effective 12 July 2024 and his remuneration has been pro-rated accordingly.
3 Rob Scott was appointed to the Board effective 17 April 2024 and his remuneration has been pro-rated accordingly. 
2023
Salary 
& fees 
$’000
Bonus
$’000
Benefits
$’000
Pension
$’000
Subtotal
$’000
Options
$’000
Company 
National 
Insurance 
Contributions
$’000
Total
2023
$’000
Directors
Ashley Stephenson
369
186
6
-
561
11
10
582
Andrew Miller1
234
-
-
-
234
-
32
266
Jens Montanana
41
-
-
-
41
11
-
52
Lionel Chmilewsky2
587
-
3
-
590
-
147
737
Peter George
36
-
-
-
36
11
-
47
Richard Last
35
-
-
-
35
11
3
49
Phil Richards3
63
31
3
4
101
13
15
129
1,365
217
12
4
1,598
57
207
1,862
1 Andrew Miller held the position of interim COO for the period from 1 March to 31 August 2023.
2 Lionel Chilewsky resigned as a Director of the Company on 28 February 2023. 
3 Phil Richards was appointed to the Board effective 21 September 2023 and his remuneration has been pro-rated accordingly.
Bonus payments of $373,000 were awarded to Directors in respect of the year to 31 December 2024 (2023: $267,000).
Carl Herberger and Ashley Stephenson both have employment agreements with a wholly owned subsidiary of the Company which provides 
for the payment of six months’ base salary if the agreement is terminated by the Company without cause. 
Rob Scott became a Director on 17 April 2024 and his remuneration has been included in the above table from date of appointment to 
the Board. Phil Richards joined the Company on 21 November 2022 and was appointed to the Board as a Director effective 21 September 2023. 
This remuneration has been included in the above tables from date of appointment to the Board until date of resignation on 12 July 2024.
Carl Herberger joined the Company on 13 November 2023 and was appointed to the Board as a Director effective 1 January 2024. 
This remuneration has been included in the above table from date of appointment to the Board. 
Andrew Miller has a non-interest bearing Director’s Loan of $72,000 (2023: $72,000) which is repayable in August 2030. Andrew Miller was 
appointed Interim Chief Operating Officer on 1 March 2023 until 1 October 2023.
Corero Network Security plc  Annual Report and Accounts 2024
82

23. CONTINGENT LIABILITIES
There are no contingent liabilities at 31 December 2024. At 31 December 2023, there was a contingent liability disclosed in relation to 
a grant awarded to Corero Network Security (UK) Limited from Scottish Enterprise for £600,000 in December 2015. Any monies became 
repaybles if grant terms were breached within 5 years of the final grant payment date, being 14 March 2019. Grant terms were not breached 
and therefore this contingent liability is not longer recognised at 31 December 2024. 
24. SHARE OPTIONS 
The Company has the following share option schemes:
	•
Enterprise Management Incentive Scheme for its employees, which has been approved by HMRC.
	•
Executive Enterprise Management Incentive Scheme, which has been approved by HMRC.
	•
Unapproved Share Option Scheme.
	•
Deferred Payment Share Plan.
Options granted have a three-year vesting period, vesting one-third on the first anniversary of grant, one-third on the second anniversary 
of grant and one-third on the third anniversary of grant. Shares acquired on the exercise of an option may not be sold until the expiry of 
the second anniversary following the date of option grant. With the exception of options granted in April 2017 to Directors which include a 
revenue growth performance vesting condition, there are no vesting conditions for options granted.
If an option holder ceases to be in employment or hold office within the Group, options granted shall immediately lapse unless such 
cessation is because of the option holder’s death; the option holder’s ill health or disability; the Company that employs the option holder 
ceasing to be under the control of the Company or such company ceasing to be within the Group; the transfer of sale of the undertaking 
or part-undertaking in which the option holder is employed to a person who is neither under the control of the Company nor within the 
Group; or any other reason that the Board in its absolute discretion shall determine.
On a cessation of employment or office as set out above, options shall be exercisable to the extent they have vested according to the 
terms of the option agreement and the provisions of the relevant share option scheme and must be exercised within 30 days following such 
cessation unless otherwise determined by the Board or if such cessation is by reason of death, in which case the option holder’s personal 
representatives must exercise the option within 12 months following the date of the option holder’s death.
For option agreements granted post June 2020 and subject to the approval of the Board, where an option holder has, as at the date of 
the grant, been employed by a Group Company for a period of at least three years and whose employment is terminated either: (a) by 
the Company other than for cause; or (b) by resignation on the part of the option holder, such option holder shall be entitled to retain the 
options granted under the option agreement following the effective date of the termination and such retained options shall continue to 
vest and be exercisable by the option holder in accordance with the vesting terms set out in the agreement.
At 31 December 2023, a contingent liability was disclosed in relation to a grant awarded to Corero Network Security (UK) Ltd by Scottish 
Enterprise for £600,000 in December 2015. If grant terms were breached within five years from the final grant payment date (being 14 March 
2015), any monies became repayable. A contingent liability is therefore no longer recognised at 31 December 2024.
Share options granted at 31 December 2024 were as follows:
Option holders
Date granted
Expiry date
Exercise 
price – pence
(cents)
At  
1 January 
2024
Granted
Exercised
Forfeit/
cancelled
At
31 December 
2024
Enterprise Management Incentive Scheme
Other Holders
April 2019
April 2029
8.4p (10c)
10,000
–
–
–
10,000
April 2020
April 2030
4.2p (5c)
347,500
–
–
–
347,500
June 2020
June 2030
5.3p (7c)
5,990,500
–
(300,000)
–
5,690,500
September 2020
September 2030
7.8p (10c)
5,000
–
–
–
5,000
October 2020
October 2030
9.0p (12c)
12,500
–
–
–
12,500
January 2021
January 2031
13.0p (18c)
510,000
–
–
–
510,000
September 2022
September 2032
10.8p (12c)
390,000
–
–
–
390,000
April 2023
April 2033
6.8p (8c)
155,000
–
(3,333)
–
151,667
April 2024
April 2034
9.0p (11c)
–
200,000
–
–
200,000
September 2024
September 2034
19.3p (25c) 
–
150,000
–
–
150,000
Corero Network Security plc  Annual Report and Accounts 2024
83
Overview
Strategic Report
Governance
Financial Statements
Corporate Directory

NOTES TO THE FINANCIAL STATEMENTS CONTINUED
Option holders
Date granted
Expiry date
Exercise 
price – pence
(cents)
At  
1 January 
2024
Granted
Exercised
Forfeit/
cancelled
At
31 December 
2024
Executive Enterprise Management Incentive Scheme
Andrew Lloyd
April 2017
April 2027
8.0p (10c)
2,083,333
–
–
–
2,083,333
Phil Richards
April 2023
April 2033
6.8p (8c)
1,500,000
–
(500,000) (1,000,000)
–
September 2023
September 2033
7.1p (9c)
500,000
–
–
(500,000)
–
Chris Goulden
May 2024
May 2034
12.5p (16c) 
–
1,500,000
–
–
1,500,000
Unapproved French Share Option Scheme
Lionel Chmilewsky
June 2020
June 2030
5.3p (7c)
7,000,000
–
(7,000,000)
–
–
January 2021
January 2031
13.0p (18c)
333,333
–
–
–
333,333
Unapproved Share Option Scheme
Jens Montanana
April 2017
April 2027
8.0p (10c)
994,000
–
–
–
994,000
May 2018
May 2028
13.6p (18c)
425,000
–
–
–
425,000
October 2018
October 2028
11.0p (14c)
400,000
–
–
–
400,000
Richard Last
April 2017
April 2027
8.0p (10c)
450,000
–
–
–
450,000
June 2017
June 2027
13.6p (18c)
180,000
–
–
–
180,000
October 2018
October 2028
11.0p (14c)
200,000
–
–
–
200,000
January 2021
January 2031
13.0p (18c)
350,000
–
–
–
350,000
Andrew Lloyd
April 2017
April 2027
8.0p (10c)
580,001
–
–
–
580,001
June 2017
June 2027
13.6p (18c)
200,000
–
–
–
200,000
Ashley Stephenson
June 2020
June 2030
5.3p (7c)
7,919,000
–
–
–
7,919,000
January 2021
January 2031
13.0p (18c)
350,000
–
–
–
350,000
Andrew Miller
June 2020
June 2030
5.3p (7c)
5,775,000
–
–
–
5,775,000
Peter George
January 2019
January 2029
11.3p (15c)
750,000
–
–
–
750,000
January 2021
January 2031
13.0p (18c)
350,000
–
–
–
350,000
Carl Herberger
November 2023
November 2033
9.0p (11c) 11,533,492
–
–
–
11,533,492
Rob Scott
April 2024
April 2034
11.8p (15c) 
–
750,000
–
–
750,000
Other holders
May 2014
May 2024
25.0p (42c)
670,666
–
–
(670,666)
–
September 2016
September 2026
22.5p (33c)
5,000
–
–
–
5,000
October 2018
October 2028
11.0p (14c)
50,000
–
–
–
50,000
September 2019
September 2029
2.5p (3c)
100,000
–
–
–
100,000
April 2020
April 2030
4.2p (5c)
205,000
–
–
–
205,000
April 2020
April 2030
4.2p (5c)
50,000
–
–
–
50,000
June 2020
June 2030
5.3p (7c)
4,423,500
–
–
–
4,423,500
January 2021
January 2031
13.0p (18c)
410,000
–
–
–
410,000
January 2022
January 2032
13.0p (18c)
4,260,000
–
(2,833,333)
(1,416,667)
10,000
September 2022
September 2032
10.8p (12c)
400,000
–
–
(200,000)
200,000
April 2023
April 2033
6.8p (8c)
245,000
–
–
–
245,000
April 2024
April 2034
9.0p (11c)
–
500,000
–
–
500,000
September 2024
September 2034
19.3p (25c) 
–
500,000
–
–
500,000
60,112,825
3,600,000
(10,636,666)
(3,787,333) 49,288,826
The closing mid-market price for the Company’s shares at 31 December 2024 was 19.70p (24.7c) (2023: 8.25p (10.5c)) and the low and high 
for the year was 8.0p (10.0c) and 27.5p (34.4c) (2023: 5.5p (7.0c) and 10.6p (13.5c)). 
In the 12 months to 31 December 2024, 10,636,666 options were exercised (2023: 230,000) and 3,787,333 options were forfeited 
(2023: 1,491,667). The weighted average share price at date of exercise was 11.70p (14.7c).
24. SHARE OPTIONS CONTINUED
Corero Network Security plc  Annual Report and Accounts 2024
84

Share options granted at 31 December 2023 were as follows:
Option holders
Date granted
Expiry date
Exercise  
price – 
pence
(cents)
At  
1 January  
2023
Granted
Exercised
Forfeit/
cancelled
At  
31 December 
2023
Enterprise Management Incentive Scheme
Other Holders
April 2019
April 2029
8.4p (10c)
10,000
–
–
–
10,000
September 2019
September 2029
2.5p (3c)
5,000
–
-
(5,000)
-
April 2020
April 2030
4.2p (5c)
357,500
­
-
(10,000)
347,500
June 2020
June 2030
5.3p (7c)
6,220,500
–
(230,000)
-
5,990,500
September 2020
September 2030
7.8p (10c)
10,000
–
–
(5,000)
5,000
October 2020
October 2030
9.0p (12c)
12,500
–
–
–
12,500
January 2021
January 2031
13.0p (18c)
535,000
–
–
(25,000)
510,000
September 2022
September 2032
10.8p (12c)
410,000
–
–
(20,000)
390,000
April 2023
April 2033
6.8p (8c)
410,000
155,000
–
–
155,000
Executive Enterprise Management Incentive Scheme
Andrew Lloyd
April 2017
April 2027
8.0p (10c)
2,083,333
–
–
–
2,083,333
Phil Richards
April 2023
April 2033
6.8p (8c)
– 1,500,000
–
–
1,500,000
September 2023
September 2033
7.1p (9c)
–
500,000
–
–
500,000
Unapproved French Share Option Scheme
Lionel Chmilewsky
June 2020
June 2030
5.3p (7c)
7,000,000
–
–
–
7,000,000
January 2021
January 2031
13.0p (18c)
500,000
–
–
(166,667)
333,333
Unapproved Share Option Scheme
Jens Montanana
April 2017
April 2027
8.0p (10c)
994,000
–
–
–
994,000
May 2018
May 2028
13.6p (18c)
425,000
–
–
–
425,000
October 2018
October 2028
11.0p (14c)
400,000
–
–
–
400,000
January 2021
January 2031
13.0p (18c)
350,000
–
–
(350,000)
–
Richard Last
April 2017
April 2027
8.0p (10c)
450,000
–
–
–
450,000
June 2017
June 2027
13.6p (18c)
180,000
–
–
–
180,000
October 2018
October 2028
11.0p (14c)
200,000
–
–
–
200,000
January 2021
January 2031
13.0p (18c)
350,000
–
–
–
350,000
Andrew Lloyd
April 2017
April 2027
8.0p (10c)
580,001
–
–
–
580,001
June 2017
June 2027
13.6p (18c)
200,000
–
–
–
200,000
Ashley Stephenson
June 2020
June 2030
5.3p (7c)
7,919,000
–
–
–
7,919,000
January 2021
January 2031
13.0p (18c)
350,000
–
–
–
350,000
Andrew Miller
June 2020
June 2030
5.3p (7c)
5,775,000
–
–
–
5,775,000
Peter George
January 2019
January 2029
11.3p (15c)
750,000
–
–
–
750,000
January 2021
January 2031
13.0p (18c)
350,000
–
–
–
350,000
Carl Herberger
November 2023
November 2033
9.0p (11c)
– 11,533,492
–
–
11,533,492
Corero Network Security plc  Annual Report and Accounts 2024
85
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NOTES TO THE FINANCIAL STATEMENTS CONTINUED
Option holders
Date granted
Expiry date
Exercise  
price – 
pence
(cents)
At  
1 January  
2023
Granted
Exercised
Forfeit/
cancelled
At  
31 December 
2023
Unapproved Share Option Scheme continued
Other holders
April 2013
April 2023 25.0p (38c)
100,000
–
–
(100,000)
–
May 2014
May 2024
25.0p (42c)
670,666
–
–
–
670,666
September 2016
September 2026 22.5p (33c)
5,000
–
–
–
5,000
October 2018
October 2028
11.0p (14c)
50,000
–
–
–
50,000
September 2019
September 2029
2.5p (3c)
100,000
–
–
–
100,000
April 2020
April 2030
4.2p (5c)
405,000
–
–
(200,000)
205,000
April 2020
April 2030
4.2p (5c)
50,000
–
–
–
50,000
June 2020
June 2030
5.3p (7c)
4,423,500
–
–
–
4,423,500
September 2020
September 2030
7.8p (10c)
0
–
–
–
–
January 2021
January 2031
13.0p (18c)
485,000
–
–
(75,000)
410,000
November 2021
November 2031
9.25p (12c)
25,000
–
–
(25,000)
–
January 2022
January 2032
13.0p (18c)
4,260,000
–
–
–
4,260,000
September 2022
September 2032
10.8p (12c)
910,000
–
–
(510,000)
400,000
April 2023
April 2033
6.8p (8c)
–
245,000
–
–
245,000
47,901,000 13,933,492
(230,000)
(1,491,667)
60,112,825
Total number of options granted to Directors
31 December 2024 
Options granted
31 December 2023 
Options granted
Relevant Share Option scheme
Ashley Stephenson
8,269,000
8,269,000
Unapproved Share Option Scheme
Andrew Miller
5,915,000
5,915,000
Executive Enterprise Management Scheme and Unapproved Share 
Option Scheme
Jens Montanana
1,819,000
1,819,000
Unapproved Share Option Scheme
Peter George
1,100,000
1,100,000
Unapproved Share Option Scheme
Richard Last
1,180,000
1,180,000
Unapproved Share Option Scheme
Rob Scott
750,000
Unapproved Share Option Scheme
Phil Richards
–
2,000,000
Executive Enterprise Management Incentive Scheme
Carl Herberger
11,533,492
–
30,566,492
20,283,000
None of the Directors holding office at the balance sheet date exercised options during the year (2023: none).
Andrew Miller has a contractual right (granted in March 2011) to purchase 140,000 ordinary shares in the Company from the Employee 
Share Ownership Trust at 40p per share pursuant to a grant made to him under the Deferred Payment Share Plan. 
24. SHARE OPTIONS CONTINUED
Corero Network Security plc  Annual Report and Accounts 2024
86

Share-based payments
The Remuneration Committee (‘RC’) approves the grant of share options to employees of the Group under the Group’s share option schemes.
Share options are granted with a fixed exercise price which is equal to the market price at the date of the grant or higher price determined by 
the RC. The share options granted are required to be exercised within 10 years from the date of grant.
Share options are valued using the Black-Scholes option-pricing model.
The weighted average fair value of the options granted in the year was 5.6p (6.3c). The value of share options granted during the year was 
calculated using the Black-Scholes option pricing model. The following variables and ranges were used:
2024
2023
Share price at date of grants
9.0p–19.3p (11c–25c)
6.8p–9.0p (9c–11c)
Exercise price
9.0p–19.3p (11c–25c)
6.8p–9.0p (9c–11c)
Expected volatility
41.5%–43.1%
44.7%–49.5%
Estimated years to exercise
4.0–5.0
4.0–5.0
Risk-free interest rate
3.7%–4.2%
3.7%–4.2%
The table below provides information on all options outstanding at the end of the year:
2024
2023
Weighted average remaining contractual life
6.3 years
7.0 years
Average remaining contractual life
6.8 years
6.6 years
Options exercisable
 36,565,387 
42,044,889
Exercise price range
2.5p–19.3p (3c–25c)
2.5p–25p (3c–32c)
Weighted average share price
7.5p (9.4c)
7.4p (8.3c)
Weighted average exercise price
7.6p (9.6c)
7.6p (8.5c)
Expected volatility
0.2%–75.6%
0.2%–75.6%
Risk-free rate – 5-year gilt rate
-0.08%–4.2%
-0.08%–4.2%
Expected dividend yield
Nil
Nil
Volatility is calculated as the standard deviation of the closing daily share price over a period of 24 months prior to the grant date.
Operating expenses in the Group Income Statement included a charge of $484,000 (2023: $230,000) relating to employee 
share‑based payments.
25. RELATED PARTIES AND TRANSACTIONS
Other than for exercises of share options, there have been no equity placings or offers in the year ended 31 December 2024 or 2023.
The Directors consider the Group’s key management personnel to be the Board of Directors of the Company whose compensation is 
detailed in note 22.
26. EVENTS AFTER THE BALANCE SHEET DATE
There have been no events that have occurred after the balance sheet date which require disclosure.
Corero Network Security plc  Annual Report and Accounts 2024
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COMPANY STATEMENT OF FINANCIAL POSITION
AS AT 31 DECEMBER 2024
Note
As at 
31 December 
2024
$’000
As at 
31 December 
2023
$’000
Assets
Non-current assets
Investments in subsidiaries
3
57,574
50,124
57,574
50,124
Current assets
Trade and other receivables
4
5,977
4,952
Cash and cash equivalents
2,156
2,544
8,133
7,496
Liabilities
Current liabilities
Trade and other payables
5
20
114
20
114
Net current assets
8,113
7,382
Net assets
65,687
57,506
Total equity attributable to owners of the parent
Share capital
7,133
6,999
Share premium
83,290
82,430
Capital redemption reserve
7,051
7,051
Share options reserve
2,143
1,659
Foreign exchange translation reserve
(15,781)
(14,764)
Accumulated profit and loss reserve
(18,149)
(25,869)
Total equity
65,687
57,506
The Company made a profit for the year 31 December 2024 of $7,720,000 (2023: loss of $15,291,000).
These financial statements were approved and authorised for issue by the Board of Directors on 31 March 2025 and signed on their behalf.
Carl Herberger
DIRECTOR
The notes on pages 90 to 94 form part of these financial statements.
Corero Network Security plc  Annual Report and Accounts 2024
88

COMPANY STATEMENT OF CHANGES IN EQUITY
FOR THE YEAR ENDED 31 DECEMBER 2024
Share 
capital
$’000
Share 
premium 
account
$’000
Capital 
redemption 
reserve
$’000
Share options 
reserve
$’000
Foreign 
exchange 
translation 
reserve
$’000
Accumulated 
profit and loss 
reserve
$’000
Total 
attributable to 
equity owners 
of the parent
$’000
1 January 2023
6,980
82,284
7,051
1,465
(18,354)
(10,578)
68,848
Loss for the year
–
–
–
–
–
(15,291)
(15,291)
Other comprehensive income
–
–
–
–
3,590
–
3,590
Total comprehensive income for 
the year
–
–
–
–
3,590
(15,291)
(11,701)
Contributions by and distributions 
to owners
Issue of share capital – exercise of 
options
19
146
–
–
–
–
165
Fully exercised share options
–
–
–
(3)
–
–
(3)
Share-based payments
–
–
–
197
–
–
197
Total contributions by and 
distributions to owners
19
146
–
194
–
–
359
31 December 2023
6,999
82,430
7,051
1,659
(14,764)
(25,869)
57,506
Profit for the year
–
–
–
–
–
7,720
7,720
Other comprehensive income
–
–
–
–
(1,017)
–
(1,016)
Total comprehensive income for 
the year
–
–
–
–
(1,017)
7,720
6,703
Contributions by and distributions 
to owners
Issue of share capital – exercise of 
options
134
860
–
–
–
–
994
Share-based payments
–
–
–
484
–
–
484
Total contributions by and 
distributions to owners
134
860
–
484
–
–
1,478
31 December 2024
7,133
83,290
 7,051
2,143
(15,781)
(18,149)
65,687
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NOTES TO THE COMPANY FINANCIAL STATEMENTS
1. GENERAL INFORMATION
Corero Network Security plc (Company 
number 02662978) is a public limited 
company incorporated in the United Kingdom 
under the Companies Act 2006 and registered 
in England and Wales. The functional currency 
of the Company entity is GBP.
Presentation currency
These Company financial statements are 
presented in US dollars (‘$’) rounded to the 
nearest $’000 unless otherwise stated which 
represents the presentational currency of the 
Company.
The average $-GBP sterling (‘GBP’) 
exchange rates used for the conversion of 
the Monthly Income Statements for the year 
ended 31 December 2024 was between 1.25 
and 1.32 (2023: between 1.21 and 1.29). The 
closing $-GBP exchange rate used for the 
conversion of the Company’s assets and 
liabilities at 31 December 2024 was 1.25 
(2023: 1.27).
2. MATERIAL ACCOUNTING 
POLICIES
2.1 Basis of preparation
The Company financial statements were 
prepared in accordance with Financial 
Reporting Standard 101 Reduced 
Disclosure Framework. The Company 
has taken advantage of the following 
disclosure exemptions:
The requirements of IFRS 2 Share-based 
payments, IFRS 7 Financial Instruments: 
Disclosures, IAS 7 Statement of Cash Flows, 
IAS 12 Income Taxes and IAS 24 Related 
Party Disclosures.
The Company has taken advantage 
of Section 408 of the Companies Act 
2006 and has not included an income 
statement in these financial statements. The 
Parent Company’s profit for the year was 
$7.7 million (2023: $15.3 million loss).
2.2 Going concern
The financial statements have been prepared 
on a going concern basis.
The Company is a holding company and does 
not trade in its own right. The Company incurs 
expenditure, mainly in relation to professional 
fees on behalf of the Group.   
The Company had net current assets and 
cash and cash equivalents as at 31 December 
2024 of $8.1 million and $2.2 million 
respectively (2023: $7.5 million and $2.5 
million respectively), and has cash and cash 
equivalents at the date of approval of these 
financial statements that were more than 
adequate to cover the Company’s projected 
level of expenditure for at least the next 12 
months.
The Directors are also not aware of any other 
significant matters in the going concern 
assessment period that could reasonably 
expected to impact the going concern 
conclusion.
On this basis, the directors consider it 
appropriate to adopt the going concern basis 
of accounting in preparing these financial 
statements.
2.3 Investments in subsidiaries
In the Company’s separate financial 
statements, investments in subsidiaries are 
carried at cost less any impairment provisions. 
Refer to note 3 in the Company financial 
statements for further details. 
2.4 Financial instruments
The Company classifies financial 
instruments, or their component parts, on 
initial recognition as a financial asset, a 
financial liability, or an equity instrument 
in accordance with the substance of the 
contractual arrangement. Financial assets 
and financial liabilities are recognised in the 
Company’s Statement of Financial Position 
when the Company becomes party to the 
contractual provisions of the instrument. 
The particular recognition and measurement 
methods adopted for the Company’s 
financial instruments are disclosed below:
Other receivables
Other receivables are stated at their fair 
value at time of initial recognition, reflecting, 
where material, the time value of money.
Cash and cash equivalents
Cash and cash equivalents include cash on 
hand and short-term deposits with an original 
maturity of three months or less that are 
readily convertible to known amounts of cash.
Other payables
Other payables are not interest bearing and 
are stated at their fair value at time of initial 
recognition. Thereafter they are accounted 
for at amortised cost.
Debt obligations
Debt obligations include interest bearing 
bank borrowings which are stated at their 
fair value less transaction costs at time of 
initial recognition. Debt obligations are 
subsequently measured at amortised cost.
2.5 Key accounting estimates 
and assumptions
Impairment of investments
The Directors have reviewed the cost of 
investments in subsidiaries of the Company 
with reference to current and future trading 
conditions. The investment in subsidiaries 
has been reviewed with reference to a 
valuation based on a discounted free cash 
flow, in conjunction with the goodwill 
impairment review, which the Directors 
consider to be an appropriate valuation 
methodology.
Corero Network Security plc  Annual Report and Accounts 2024
90

3. INVESTMENT IN SUBSIDIARIES
Investment in Corero 
Network Security, Inc.  
and Corero Network 
Security (UK) Limited
$’000
Investment 
in Corero 
Group Services 
Limited
$’000
Loan note
$’000
Total
$’000
Cost
At 1 January 2023
65,325
9,635
8,443
83,403
Additions
–
–
224
224
Repayment of Loan note
–
–
(9,089)
(9,089)
Foreign currency translation
3,374
502
422
4,298
At 31 December 2023 and at 1 January 2024
68,699
10,137
–
78,836
Additions
–
–
–
–
Foreign currency translation
(1,149)
(168)
–
(1,318)
At 31 December 2024
67,550
9,969
–
77,519
Impairment
At 1 January 2023
(9,358)
(3,836)
–
(13,194)
Impairment charge
(10,859)
(4,069)
–
(14,928)
Foreign currency translation
(87)
(503)
–
(590)
At 31 December 2023 and at 1 January 2024
(20,304)
(8,408)
–
(28,712)
Impairment credit/(charge)
8,664
(373)
–
8,291
Foreign currency translation
337
139
–
476
At 31 December 2024
(11,303)
(8,642)
–
(19,945)
Net book value
At 31 December 2024
56,247
1,327
–
57,574
At 31 December 2023
48,395
1,729
–
50,124
At 1 January 2023
55,967
5,799
8,443
70,209
The Company owns:
	•
100% of the issued share capital of Corero Network Security, Inc. a company incorporated in Delaware, USA. The Company’s business 
address is 293 Boston Post Road, Marlborough, MA 01752, USA. The principal business of the Company consists of the development 
and sale of appliance and software security products and solutions.
	•
100% of the issued share capital of Corero Group Services Limited, a company incorporated and registered in England and Wales. 
The Company’s business address is Salisbury House, 29 Finsbury Circus, London, EC2M 5QQ, England, United Kingdom. The principal 
business of the Company consists of providing administration services to the Group.
	•
100% of the issued share capital of Corero Network Security (UK) Limited, a company incorporated and registered in England and 
Wales. The Company’s business address is 3rd Floor, 53 Hanover Street, Edinburgh, EH2 2PJ and registered address is Salisbury 
House, 29 Finsbury Circus, London, EC2M 5QQ, England, United Kingdom. The principal business of the Company consists of sale of 
appliances and software security products and solutions, providing development and marketing services on behalf of Corero Network 
Security, Inc. 
The Directors have reviewed the carrying value of the cost of investments in subsidiaries of the Company against the recoverable amount. The 
recoverable amount was determined based on a discounted free cash flow valuation to calculate fair value less costs to sell using cash flow 
projections over a 5 year period, which the Directors consider to be an appropriate valuation methodology. Based on the pre-tax cash flows of 
the investment held in Corero Network Security Inc. and Corero Network Security (UK) Limited (combined cash flows) as at 31 December 2024, 
an impairment credit has been recognised to the value of $8.7 million. There is also a small impairment to the value of the investment in Corero 
Group Services Limited of $0.4 million. The total impairment provision against the investment in subsidiaries was therefore $19.9 million at 31 
December 2024 (2023: $28.7 million). 
Corero Network Security plc  Annual Report and Accounts 2024
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NOTES TO THE FINANCIAL STATEMENTS CONTINUED
3. INVESTMENT IN SUBSIDIARIES CONTINUED
Investment in Corero Network Security Inc. and Corero Network Security (UK) Limited
Key assumptions used in the discounted cash flow (‘DCF’) calculation are those regarding revenue growth and discount rates as summarised in 
the table below and commented on below. Refer to note 9 in the consolidated financial statements for further details about the key assumptions 
and sensitivities used.
2024
2023
Forecast cash flow period
Years 1-2
Years 1-2
Extrapolated cash flow period
Years 3-5
Years 3-10
Cumulative annual growth rate (‘CAGR’) for revenue used for the forecast/extrapolated periods
14.0%
9.5%
Growth rates (‘CAGR’) used for the forecast/extrapolated periods:
Year 1–2 (forecast period)
14.0%
9.0%
Years 3–5 (extrapolated period)
14.0%
15.0%
Years 6–10 (extrapolated period)
n/a
6.5%
Revenue growth rate used beyond the extrapolated period
3.3%
2.5%
Discount rate
13.7%
18.5%
The DCF calculation has been used to assess the level of impairment or impairment credit required to be recognised at 31 December 
2024 in the investment held in Corero Network Security, Inc. and Corero Network Security (UK) Limited. The valuation to support the value 
of the investment held, and corresponding impairment required is sensitive to changes in the cash flow forecasts and the discount rate 
assumptions, and there is no absolute guarantee that the expected growth will be achieved. 
The assumptions which have the greatest impact on the valuation are discount rate and revenue growth in 2025 and 2026 (‘Year 1-2 
(forecast period)’). 
If the discount rate is increased from 13.7% to 20%, this would result in an impairment of $15 million to the carrying value of the investment 
held in Corero Network Security, Inc. and Corero Network Security (UK) Limited. 
If forecast revenue growth for 2025 and 2026 were reduced from 14.0% to nil, this would result in an impairment of $20.5 million to the 
carrying value of the investment in Corero Network Security, Inc. and Corero Network Security (UK) Limited as at 31 December 2024. 
Based on the pre-tax cash flows of the investment held in Corero Network Security, Inc. and Corero Network Security (UK) Limited (combined 
cash flows) as at 31 December 2024, an impairment credit has been recognised to the value of $8.7 million. Net book value of the investment 
held at 31 December 2024 is $56.2 million. 
Investment in Corero Group Services Limited
At 31 December 2024, net assets of Corero Group Services Limited amounted to $1.3 million which the Directors have determined to 
be the value of the Company at that time. The investment held in Corero Group Services Limited at 31 December 2023 was $1.7 million. 
Therefore, at 31 December 2024, an additional impairment charge has been recognised against the investment in Corero Group Services 
Limited of $0.4 million. 
Corero Network Security plc  Annual Report and Accounts 2024
92

4. OTHER RECEIVABLES 
2024
$’000
2023
$’000
Other debtors
80 
82
Prepayments
35 
4
Trading amounts due from subsidiaries
5,862 
4,866
5,977 
4,952
None of the Company’s trade and other receivables are secured by collateral or credit enhancements (2023: None).
The maturity profile of trade and other receivables is set out in the table below:
2024
$’000
2023
$’000
In one year or less, or on demand
5,977
4,952
In more than one year, but not more than five years
–
–
5,977
4,952
The analysis of trade and other receivables by foreign currency is set out in the table below:
2024
$’000
2023
$’000
US dollars
–
–
UK pound sterling
5,977
4,952
5,977
4,952
5. OTHER PAYABLES 
2024
$’000
2023
$’000
Trading amounts due to subsidiaries
–
–
Other payables
20
1
Accruals
–
113
20
114
None of the Company’s trade and other payables are secured by collateral or credit enhancements.
The Directors consider that the carrying amount of trade and other payables approximates their fair value. 100% (2023: 100%) of the trade 
and other payables are due in less than three months. The amounts due to subsidiaries are repayable on demand.
The analysis of trade and other payables by foreign currency is set out in the table below:
2024
$’000
2023
$’000
US dollars
–
–
UK pound sterling
20
114
20
114
Corero Network Security plc  Annual Report and Accounts 2024
93
Overview
Strategic Report
Governance
Financial Statements
Corporate Directory

NOTES TO THE FINANCIAL STATEMENTS CONTINUED
6. BORROWINGS
There are no external borrowings held by the Group at 31 December 2024 (2023: nil). The RCF was closed in February 2024 with all fees due 
paid at that time.
7. RELATED PARTIES AND TRANSACTIONS
Company key management compensation was $nil (2023: $nil) as the key management are employed by subsidiaries.
8. SHARE CAPITAL
Refer to Group disclosure note 20 for movements in share capital of the Company.
9. SHARE PREMIUM
Refer to Group disclosure note 21 for movements in share premium of the Company.
10. EVENTS AFTER THE BALANCE SHEET DATE
There have been no events that have occurred after the balance sheet date which require disclosure.
Corero Network Security plc  Annual Report and Accounts 2024
94

GLOSSARY
5G
Fifth Generation Cellular Network Technology
Adjusted EBITDA
Represents the operating profit less unrealised foreign exchange differences on an intercompany loan, PPPL 
forgiveness, depreciation, amortisation and any impairment of goodwill. The Board considers the Adjusted 
EBITDA to be a further useful measure of profitability as it excludes other significant non‑cash items in addition to 
classic typical EBITDA non-cash items.
AI
Artificial Intelligence
AIM
Alternative Investment Market
ARR
Annualised Recurring Revenues represents the normalised annualised recurring revenues and includes recurring 
revenues from contract values of annual support, software licence subscription and from DDoS Protection-as-a-
Service (‘DDPaaS’) contracts.
CAGR
Compound Annual Growth Rate
CGU
Cash-Generating Unit
CNS
Corero Network Security 
CPU
Central Processing Unit
CSPs
Communication Service Providers
DDoS
Distributed Denial of Service
DDPaaS
DDoS Protection as-a-Service
DPDK
Data Plane Development Kit
DPI
Deep Packet Inspection
EBITDA
Earnings Before Interest, Tax, Depreciation and Amortisation
EU
European Union
FCA
Financial Conduct Authority
FRC
Financial Reporting Council
FRS
Financial Reporting Standard
Gross margin
Represents gross profit divided by revenue. It measures the Group’s profitability before overheads.
IAS
International Accounting Standards
IFRS
International Financial Reporting Standards
IoT
Internet of Things
ISA
International Standard on Auditing
MSSP
Managed Security Service Provider
Net cash
Represents cash at bank less total borrowings.
NICs
Network Interface Cards
POPs
Points of Presence
PPPL
Paycheck Protection Program Loan
Profit/(Loss) 
before taxation
Represents the Company’s loss arising from operations, after depreciation, amortisation and any finance income  
or expenditure before any taxation charges or credits.
Revenue
Represents revenue from the sale of Corero solutions.
RCF
Revolving Credit Facility
R&D
Research and Development
ROI
Return On Investment
SOC
Security Operations Center
SSP
Stand–alone Selling Prices
TCO
Total Cost of Ownership
TDC
SmartWall® Threat Defense Cloud
TDD
SmartWall® Threat Defense Director
TDS
SmartWall® Threat Defense System
Corero Network Security plc  Annual Report and Accounts 2024
95
Overview
Strategic Report
Governance
Financial Statements
Corporate Directory

CORPORATE DIRECTORY
DIRECTORS 
Jens Montanana (Non-executive Chairman)
Richard Last (Non-executive Director)
Peter George (Non-executive Director)
Andrew Miller (Non-executive Director)
Robert Scott (Non-executive Director)
Carl Herberger (Chief Executive Officer)
Ashley Stephenson (Chief Technology Officer)
SECRETARY AND REGISTERED OFFICE
Emma Rockey
Salisbury House
29 Finsbury Circus
London
EC2M 5QQ
UK 
NOMINATED ADVISERS AND BROKER
Canaccord Genuity Ltd
88 Wood Street
London
EC2V 7QR
UK
Zeus Capital Limited
82 King Street 
Manchester  
M2 4WQ 
FINANCIAL PUBLIC RELATIONS
Vigo Communications
Sackville House
40 Piccadilly
London
W1J 0DR
UK
AUDITOR
MacIntyre Hudson LLP
2 London Wall Place,
London
EC2Y 5AU
UK
SOLICITORS
Dorsey and Whitney LLP
199 Bishopsgate
London
EC2M 3UT
UK 
BANKERS
Barclays Bank PLC
Corporate Banking 
11th Floor, 1 Churchill Place 
London E1 5HP
Wells Fargo Bank N.A.
420 Montgomery Street
San Francisco, CA 94104
USA
REGISTRARS
MUFG Pension & Market Services (formerly Link Group)
10th Floor
Central Square
29 Wellington Street
Leeds
LS1 4DL
UK
WEBSITE ADDRESS
www.corero.com
Corero Network Security plc  Annual Report and Accounts 2024
96

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Registered Office 
Salisbury House 
29 Finsbury Circus 
London 
EC2M 5QQ 
UK
Corero Network Security plc