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Cohen & Steers
Annual Report 2023

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FY2023 Annual Report · Cohen & Steers
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THE DDOS  
PROTECTION 
SPECIALISTS

ANNuAl RepORt AND ACCOuNtS 2023 
Corero Network Security plc 

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Corero is dedicated to 
improving the security 
and availability of the 
internet through the 
deployment of innovative 
Distributed Denial 
of Service (“DDoS”) 
protection solutions.

DDOS –  
PROTECTION  
WITHOUT THE 
DOWNTIME.

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.

CONteNtS

Overview
01  2023 Highlights
02  At a glance
04  Business Model
06  Focus on Alliances: Akamai Technologies
08  Case Study: TechEnabler
10   Market Overview
12  Corero Explained
16  Customer proposition
17   Investor proposition

Strategic Report
18  Chief Executive Officer’s Review
22  Financial Review
24  Key Performance Indicators
26  Key Stakeholders
26  Section 172 Statement
28  Principal Risks and Uncertainties
30   Environmental, Social and  

Governance Report

Governance
32  Board of Directors
34    Non-Executive Chairman’s Corporate 

Governance Introduction

35  QCA Code Compliance
36  Corporate Governance Report
38   Board Performance and  
Remuneration Policy
39  Board Committee Reports
40  Directors’ Report
43  Statement of Directors’ Responsibilities
44  Independent Auditor’s Report

Financial Statements and associated notes
49  Consolidated Income Statement
50   Consolidated Statement of 
Comprehensive Income
51   Consolidated Statement of  

Financial Position

52  Consolidated Statement of Cash Flows
53   Consolidated Statement of Changes  

in Equity

54  Notes to the Financial Statements
78   Company Statement of  

Financial Position

79   Company Statement of Changes  

in Equity

Corporate Directory
83  Glossary
84  Corporate Directory

FOR MORE INFORMATION VISIT  
corero.com

OVERVIEW

Strategic Report

Governance

Financial Statements

Corporate Directory

2023 HIGHLIGHTS

ReVeNue

ARR1

$22.3m

$16.9m

GROSS MARGiN

90.3% 

2019

2020

2021

2022

2023

$9.7m

$16.9m

$20.9m

$20.1m

$22.3m

$7.2m

$9.8m

2019

2020

2021

2022

2023

$12.8m

$14.4m

$16.9m

2019

2020

2021

2022

2023

81.0%

77.3%

85.1%

87.2%

90.0%

Net CASH 

$5.2m

2019

2020

2021

2022

2023

$5.4m

$4.4m

$5.2m

$7.6m

$8.4m

ADJuSteD 
eBitDA2

$2.2m

-$2.5m

2019

-$0.6m

2020

pROFit/(lOSS)  
BeFORe tAXAtiON

-$0.2m

-$6.6m

2019

-$4.0m

2020

2021

$3.2m

2022

$1.7m

2023

$2.2m

2021

$1.4m

2022

$0.4m

2023

-$0.2m

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  Adjusted EBITDA is defined as Earnings before 
interest, tax, depreciation, and amortisation 
excluding unrealised gains/(losses) on an 
intercompany loan and PPPL forgiveness

FINANCIAL HIGHLIGHTS
 • Total revenue increased by 11% to 
$22.3 million (2022: $20.1 million)

 • ARR up 17% to $16.9 million as at 
1 January 2024 (1 January 2023: 
$14.4 million)

 • Order intake increased by 4% to 

$24.8 million from $23.9 million in 2022

 • Gross margins of 90% (2022: 87%)

 • Adjusted EBITDA2 of $2.2 million 

(2022: $1.7 million)

 • Loss before taxation of -$0.2 million 

(2022: profit of $0.4 million)

 • Earnings and diluted earnings per 
share of 0.0 cents (2022: 0.1 cents)

 • Net cash at 31 December 2023 of 
$5.2 million (2022: $4.4 million)

OPERATIONAL HIGHLIGHTS
 • Customer support contract renewal 

rate of 98% (2022: 98%) demonstrating 
both the quality of Corero solutions 
and customer service

 • Annualised Recurring Revenues1 

(‘ARR’) increased to $16.9 million (2022: 
$14.4 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

Corero Network Security plc  Annual Report and Accounts 2023

01

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.

WHAT WE DO

•  Prevent downtime in the event of a DDoS attack
•  Eliminate the need for operator intervention by 

automatically mitigating over 98% attacks

•  Enable service providers to deliver added value to 
customers by offering DDoS protection services

OUR MISSION
Corero’s mission is to be our customers’ 
trusted partner on their journey to 
implement effective DDoS protection 
matched to their needs.

WHY WE DO IT
 • To make the internet a safer place 
by protecting organisations from 
damaging DDoS attacks and the 
downtime that comes with it.

 • Corero customers benefit from rapid 
attack discovery, rapid mitigation, 
and a dynamic, flexible solution.

HOW WE DO IT
 • Intelligently automated solution 
that protects from DDoS attacks 
in under a second. 

 • 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.

02

Corero Network Security plc  Annual Report and Accounts 2023

RESPONSIBLE BUSINESS
Corero aspires to carry out its business 
to the highest ethical standards, treating 
customers, partners, suppliers, and 
employees in a professional, courteous 
and honest manner.

Corero is committed to promoting 
sustainability. We aim to promote 
good sustainability practice and to 
carry out our operations in a way which 
manages and minimises any adverse 
environmental impacts.

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 
for the users and customers of those 
businesses (often in a mission critical way) 
and the knock-on effects to populations 
as-a-whole.

OVERVIEW

Strategic Report

Governance

Financial Statements

Corporate Directory

OUR VISION
In an internet connected world, every business, 
application and individual is protected from 
DDoS attacks. 

OUR VALUES
Values and beliefs underpin the strategy. These are 
lived to become the culture:

Customers First; technology leadership & 
innovation; Operational excellence; integrity; 
employee empowerment & teamwork

ACHIEVED THROUGH

DELIVERED BY

OUR PURPOSE
To best protect customers from the damaging 
impact of DDoS cyber security attacks.

OUR FOCUS
Maintain our superior technological performance 
while delivering sustainable, long-term value to 
our stakeholders.

OUR STRATEGIC GOALS
1.  Grow our pipeline and corresponding revenue 

2.  Leverage our existing reseller and strategic 

partnerships and develop new ones

3.  Target and expand our Ideal Customer Profile 

(‘ICP’) relationships

4.  Better monetise our existing services and 

introduce new services

5.  Amplify our demand generation programs

6.  Continue to enhance our technological 

innovation leadership

ENABLED BY

OUR BUSINESS MODEL
Please see our business model on pages 4 to 5.

SUPPORTED BY

OUR SUPPORTERS
Our supporters are our customers; our partners 
including strategic alliance partners; our suppliers, 
our investors and our employees.

Corero Network Security plc  Annual Report and Accounts 2023

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:

INPUTS

KEY SOLUTIONS

SALES CHANNELS

OUR CULTURE  
& VALUES
See page 26

MARKET OVERVIEW
See page 10

STRATEGIC  
ALLIANCES
Akamai, Juniper and GTT 

INDIRECT SALES  
PARTNERS
Value-added resellers 
and distributors

DIRECT SALES 
Corero sales team

SMARTWALL ONE

SECUREWATCH
Support, software 
updates, maintenance,  
monitoring

INLINE/DATA PATH 
PROTECTION
Surgical protection 
applicances for 10G, 
100G and 400G network 
deployment

SCRUBBING PROTECTION
Out-of-band detection 
for larger networks, with 
redirection to surgical 
protection appliances in  
central scrubbing centers

EDGE MITIGATION
Out-of-band detection, 
using customers’ routers 
to protect large networks 
at the edge, without 
deploying applicances

CLOUD MITIGATION
Defends networks against 
saturating attacks which 
exceed their internet 
bandwidth capacity

04

Corero Network Security plc  Annual Report and Accounts 2023

OVERVIEW

Strategic Report

Governance

Financial Statements

Corporate Directory

CUSTOMER SEGMENTS

SOURCE OF REVENUE

OUTPUTS

SAAS PROVIDERS

DDOS PROTECTION  
AS-A-SERVICE

EDGE PROVIDERS

REVENUE SHARE

CASH FOR 
REINVESTMENT
See page 24

FINANCIAL RETURNS 
FOR INVESTORS
See page 24

HOSTING AND CLOUD 
PROVIDERS

SOFTWARE 
SUBSCRIPTION LICENCE

ESG
See page 30

INTERNET SERVICE  
PROVIDERS

SUPPORT AND SERVICES

APPLIANCE AND PERPETUAL 
SOFTWARE LICENCE

Corero Network Security plc  Annual Report and Accounts 2023

05

FOCUS ON ALLIANCES

AKAMAI TECHNOLOGIES 
& CORERO.

DDoS attacks continue to 
be one of the most prevalent 
forms of cyberattacks. 

“As organisations increasingly adopt 
hybrid workloads, the question of whether 
to deploy on-premises DDoS protection 
or subscribe to a cloud DDoS provider is 
not an ‘either-or’ choice. The partnership 
between Corero and Akamai provides 
a comprehensive approach to DDoS 
protection, allowing organizations and 
service providers to rest easy for both their 
on-premises and cloud-based needs,”  
said Corero’s Chief Technology Officer, 
Ashley Stephenson.

Akamai Technologies, Inc. (Nasdaq: AKAM), 
the cloud company that powers and protects 
life online, announced a global partnership 
with Corero on 20th September 2023, with 
Akamai now offering Corero’s on-premises 
DDoS protection to extend Akamai Prolexic, 
Akamai’s own comprehensive portfolio of 
DDoS security solutions.

DDoS attacks continue to be one of the 
most prevalent forms of cyberattacks. 
According to Corero’s threat research, 
DDoS carpet bombing attacks rose by 
300% in 2022, and IPv6-based DDoS attacks 
increased by 500% during the same period. 
Similarly, Akamai has observed a record-
breaking increase in high packet rate  
DDoS attacks by cybercriminals,  

state-sponsored actors, hacktivist groups, 
and other malicious actors targeting sectors 
such as financial services, gaming, high tech, 
and commerce. 

Prolexic is a cloud-based DDoS protection 
platform designed to stop attacks before 
they reach applications, data centers, 
and internet-facing infrastructure. Now 
organisations of all sizes that require 
on-premises DDoS defenses, whether in 
addition to cloud-based protection or as 
a stand-alone solution as part of their own 
network, can leverage Akamai Prolexic 
on-prem, which is powered by Corero’s 
SmartWall ONE. 

Akamai Prolexic on-prem, powered by 
Corero, helps protect against DDoS attacks 
on-premises and provides customers and 
mitigators maximum flexibility for use cases 
where a cloud solution cannot or may not be 
used exclusively. 

Akamai Prolexic hybrid combines cloud-
based and on-premises DDoS defenses 
into a comprehensive solution that offers 
the lowest possible latencies and minimizes 
traffic redirection, while providing the 
security of a massive 20+ tbps dedicated 
defense capacity from more than 36 
scrubbing centers of the Akamai Prolexic 
cloud platform.

06

Corero Network Security plc  Annual Report and Accounts 2023

OVERVIEW

Strategic Report

Governance

Financial Statements

Corporate Directory

Network services providers, hosting and cloud 
vendors, and businesses offering SaaS, PaaS, 
or IaaS can now leverage Akamai Prolexic on-
prem and hybrid solutions to protect their own 
environments and provide DDoS protection 
services to their customers. With Akamai 
Prolexic on-prem, the operational costs related 
to transferring traffic to the cloud can be 
eliminated for the vast majority of small, fast, 
and subsaturating attacks, while the cloud-
based defenses of Akamai Prolexic defend the 
network against sophisticated high-volume 
multi-vector attacks.

The new Prolexic hybrid solution also allows 
companies to protect data-intense real-time 
services, like videoconferencing, gaming, 
voice, or multimedia applications, where 
low-latency local protection is preferred. The 
hybrid solution allows organisations to bring 
DDoS defense on-premises while still getting 
the safety of Prolexic’s massive cloud-based 
defense capacity to defend against large, 
sustained attacks.

“It’s no secret that DDoS attacks are 
becoming bigger and more sophisticated. 
In just the past two years, seven out of 10 
attacks observed were the largest ever 
mitigated by Akamai, and 65% of attacks  
we are seeing are highly targeted multi-
vector attacks,” said Sean Lyons, Senior  
Vice President and General Manager  
of Infrastructure Security at Akamai.  
“Our partnership with Corero allows us  
to deliver a robust solution while enabling 
organizations 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.”

Both companies plan to deepen the 
collaboration further to provide industry-
leading infrastructure security solutions 
by extending seamless cloud signaling, 
automation, and threat intelligence reporting.

To learn more about Akamai and Corero’s 
strategic partnership, visit www.corero.com/
Akamai-partnership 

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
SENIOR VICE PRESIDENT AND GENERAL 
MANAGER OF INFRASTRUCTURE SECURITY 
AT AKAMAI

Corero Network Security plc  Annual Report and Accounts 2023

07

CASE STUDY: TECHENABLER

OUR STRATEGY  
IN PRACTICE.

TechEnabler Partners with 
Corero to Deliver Cutting-
Edge Anti-DDoS Solutions in 
Brazil and LATAM with Revenue 
Sharing Model

Corero entered into a key strategic 
partnership with TechEnabler, an established 
Brazilian network solutions distributor  
(the ‘Partnership’). The Partnership will 
enable Corero to expand its Latin American 
(‘LATAM’) footprint, which is a key focus 
of the Company’s overarching growth 
strategy, as it aims to provide unparalleled 
DDoS protection across corporate and 
communications provider networks in Brazil 
and the broader LATAM region.

Leveraging TechEnabler’s extensive network 
and technical expertise, the Partnership 
will enable Corero to deploy its flagship 
SmartWall ONE platform to new customers, 
offering robust defence mechanisms against 
the evolving landscape of DDoS attacks 
and ransom threats. This Partnership is 
underpinned by a revenue-sharing model, 
ensuring mutual benefits and success from 
both organizations’ combined efforts.

The Partnership has already secured Corero 
a product and services deal in excess of  
$1 million, the Company’s largest ever 
contract in the LATAM region, showcasing 
the unique capabilities of TechEnabler’s 
Local Scrubbing-as-a-Service (‘LSaaS’) 
offering, using Corero’s technology.  
The service is designed to deliver zero 
latency and precise traffic management, 
setting new standards in DDoS mitigation. 

Carl Herberger, Chief Executive Officer  
at Corero, commented:

“Creating this strategic partnership with 
TechEnabler provides an ideal platform to 
expand our product reach in a key growth 
market for Corero, alongside aligning our 
business with a partner who shares our 
commitment to cybersecurity excellence. 

This agreement reinforces our focus on 
security innovation, which in turn will allow 
a new crop of businesses to fortify their 
networks against DDoS attacks whilst 
exploring further opportunities to leverage 
our cutting-edge solutions.”

08

Corero Network Security plc  Annual Report and Accounts 2023

OVERVIEW

Strategic Report

Governance

Financial Statements

Corporate Directory

Alvaro Aquino, General Manager  
of TechEnabler, said:

“The Corero SmartWall® ONE platform 
effectively protects companies and 
carriers against DDoS attacks and ransom 
threats. Our business success with Corero’s 
technology since we partnered a little more 
than a year ago prompted the new revenue-
sharing agreement that will bring our 
companies closer, certainly with even better 
outcomes for both.”

Forte Telecom (which means ‘Strong 
Telecom’), a wholesale carrier providing 
services in six Brazilian states, chose Corero/
TechEnabler to protect its network and 
customers. Forte’s CEO, Sergio Simas, says: 
“Forte Telecom’s solution was exclusively 
designed to enable Forte to provide its 
customers with unique added-value services: 
It is based on the innovative concept 
of Local Scrubbing as a Service (LSaaS), 
which only Corero’s technology can deliver 
from the system architecture standpoint. 
Forte’s solution offers zero latency, with 
milliseconds of response time, and allows 
for precise customer traffic management, 
fully visualized throughout a sophisticated 
customer portal.”

TechEnabler provides the Corero technology 
as the customer desires it. The customer 
may acquire the platform and choose the 
defense system design and modeling by 
TechEnabler, counting on support from 
the three centers in Brazil (in the cities of 
São Luís, Rio de Janeiro, and Porto Alegre) 
besides those in Mexico and Chile; or go 
for protection against DDoS attacks as 
a service, in the form of local mitigation,  
cloud mitigation, or a combination of local 
and cloud mitigation.

Corero and Techenabler’s combined 
offerings will be showcased at the 14th 
Brazilian Association of Internet and 
Telecommunications Service Providers 
(‘ABRINT’) National Meeting in São Paulo, 
Brazil, from 12-14 June 2024.

CREATING THIS STRATEGIC 
PARTNERSHIP WITH 
TECHENABLER PROVIDES 
AN IDEAL PLATFORM TO 
EXPAND OUR PRODUCT 
REACH IN A KEY GROWTH 
MARKET FOR CORERO, 
ALONGSIDE ALIGNING 
OUR BUSINESS WITH A 
PARTNER WHO SHARES 
OUR COMMITMENT 
TO CYBERSECURITY 
EXCELLENCE.”

Carl Herberger
CHIEF EXECUTIVE OFFICER

Corero Network Security plc  Annual Report and Accounts 2023

09

MARKET OVERVIEW

CHANGES IN THE GLOBAL 
DDOS ATTACK LANDSCAPE 
BRING ABOUT A SURGE IN 
VOLUME OF ATTACKS AND 
VARIETY OF DEPLOYMENTS.

CYBER THREATS AND 
DDOS ATTACKS
A wide range of critical cybersecurity issues 
face every internet connected organisation. 
These threats include DDoS, hacking, 
breach, phishing, fraud, ransom, data theft 
and exfiltration. These cyber threats present 
themselves via the internet connections that 
are essential to support online business.

Corero focuses on one specific category 
of these cybersecurity threats known as 
Distributed Denial of Service (‘DDoS’) and  
has developed an innovative, flexible, 
solution that delivers automatic detection 
and protection against these attacks.

The broad range of motives for executing 
DDoS attacks, coupled with the relative ease 
with which they can be launched, means a 
variety of actors, including; criminal gangs, 
activists, terrorist groups and even nation 
states use them. Aside from those who 
are focused purely on disrupting services, 
some of those who carry out DDoS attacks 
do so for extortion, via ransom DDoS, or 
as a smokescreen for other cyberattacks 
designed to steal data.

DDoS attacks continue to grow in 
sophistication, scale and frequency.

Businesses and public-sector organisations 
are equally vulnerable to DDoS attacks and 
recent years have seen some of the world’s 
best-known companies fall victim to these 
attacks, with a significant impact for their 
customers and bottom line.

The DDoS protection market is driven by 
the growing need for business continuity. 
Increasingly, always-on protection is the only 
answer to defend against the short, sharp, 
attacks which are the most prevalent. This 
is driving an increasing value-add service 
revenue opportunity for service providers. 

To meet the needs of these businesses, 
Corero’s SmartWall ONE solution delivers 
fast, automatic, and surgically accurate 
protection that ensures DDoS attacks are 
blocked before they can cause any impact. 
Deep packet inspection with exact match 
and heuristics-based behavioural detection, 
rather than traditional header-only flow-
based techniques, delivers a speed and 
accuracy not possible with legacy solutions. 
And, with flexible deployment options that 
scale to tens-of-terabits capacity, SmartWall 
ONE can meet the needs of our customers 
today and grow with them as they evolve.

tHe DDOS pROteCtiON 
MARket

$3.6bn in 2023

Global DDoS Protection Market 
expected to reach $9.1bn  
by 2030 at 14% CAGR* 

2020

$2,866

2022

2024

2026

2027

$3,916

$5,224

$6,771

$7,300

GlOBAl DDOS 
pROteCtiON MARket

>44,000

Daily Attacks

Daily DDoS attacks recorded 
during the first half of 2023, 
a 33% increase from 2022**

*  Verified Market Research DDoS Protection 

and Mitigation Market Size and Forecast 2023

**  NetScout H1 2023 Report

10

Corero Network Security plc  Annual Report and Accounts 2023

OVERVIEW

Strategic Report

Governance

Financial Statements

Corporate Directory

Corero Network Security plc  Annual Report and Accounts 2023

11

CORERO EXPLAINED

YOUR QUESTIONS 
ANSWERED.

WHAT IS OUR MISSION? 
to be the customer’s trusted partner on their journey to implement effective DDoS 
protection matched to their needs.

WHAT IS A DDOS ATTACK? 
A DDoS attack is a cyber threat, in which 
multiple computer systems or devices 
attack a target, such as a server, website 
or network, and impact the users of the 
targeted resources. 

The flood of incoming messages, 
connection requests, or malformed packets 
sent to the target causes it to slow or shut 
down or congests the host network thereby 
denying service to legitimate users. 

DDoS attacks are a threat to service 
availability, network security, brand 
reputation and ultimately lead to  
lost revenues.

Attackers are continuing to leverage DDoS 
attacks as part of their cyber threat arsenal 
to either disrupt business operations or 
provide a smokescreen while they attempt 
to access sensitive corporate information. 

Attackers are increasingly leveraging 
creative ways to circumvent traditional 
security solutions or reduce the effectiveness 
of DDoS scrubbing solutions. DDoS attacks 
can be found in a multitude of sizes and 
are launched for a variety of motivations. 
They may also be used to extort payments 
via Ransom DDoS. Today’s cyber criminals 
do not even have to construct the attacks 
themselves. They can simply download 
ready made DDoS tools or use DDoS for 
hire services on the darkweb to accomplish 
their goals.

STEPS IN A TYPICAL DDOS BOTNET ATTACK

Step 1
Botmaster sends command and control 
signals to a botnet of infected devices 
or hosts identifying the victim and 
desired type of attack.

Step 2
Botnet receives instruction and begins 
to attack the designated victim by 
sending a variety of malicious DDoS 
traffic across the internet.

Step 3
Traffic from attacking bots, distributed 
across the internet, converges on the 
victim at the same time resulting  
in congestion, overload and denial  
of service for legitimate users. 

EXAMPLE OF A DDOS BOTNET ATTACK

1

2

3

Botmaster sends ‘LAUNCH’ command.

Bots send attack traffic to victim.

Attack traffic overwhelms the victim 
server or network.

12

Corero Network Security plc  Annual Report and Accounts 2023

BOTMASTER

COMMAND AND 
CONTROL SERVER

BOTNET OF 
HUNDREDS OR 
THOUSANDS OF 
INFECTED DEVICES 
OR HOSTS

VICTIM SERVER

USERS

OVERVIEW

Strategic Report

Governance

Financial Statements

Corporate Directory

WHAT DAMAGE CAN A 
DDOS ATTACK DO? 
High availability of cloud services and 
online applications are critical for modern 
businesses and institutions. Any downtime 
brings risk, including: 

 • Lost revenue.

 • Loss of control.

 • Operational costs to mitigate or recover 

from attacks. 

 • Increased costs to retain unhappy 

customers and attract new customers. 

 • Brand and reputation damage leading  
to competitive disadvantage or loss  
of confidence. 

 • Regulatory fines, legal action, 

resignations.

The SmartWall family of solutions utilise 
innovative, patented, technology to 
automatically and surgically remove 
DDoS attack traffic, while allowing good 
traffic to flow uninterrupted. They are 
amongst the highest performing in the 
industry, while providing the most flexible 
deployment options for any network for 
automated and accurate DDoS protection, 
at unprecedented scale, with the lowest 
total cost of ownership to the customer. 
We protect against DDoS attacks in 
seconds, or less, rather than the minutes or 
tens of minutes taken by legacy solutions. 

Corero’s market leading DDoS solution 
portfolio is endorsed by over 160 direct 
customers, many of whom are providers 
using Corero’s solution to protect hundreds, 
or thousands, of their customers. 

WHAT SOLUTIONS DO WE HAVE? 
Corero’s SmartWall DDoS protection 
solutions are designed to protect business 
continuity, service availability, revenues 
and brand reputations from harmful DDoS 
attacks. We do this for internet service 
providers, hosting and data centre providers 
and SaaS enterprises. 

Our SmartWall ONE solution delivers the 
industry’s broadest on-premises deployment 
options. From inline and in-datapath 
appliances, to out-of-band detection with 
edge and/or scrubbing protection for the 
largest provider networks. Corero’s edge 
solution includes integration that directly 
powers the silicon filtering capabilities 

increasingly built into modern edge  
routers, scaling to tens-of-terabits per 
second of protection, without the need to 
deploy additional appliances at the edge  
or needing to back-haul large volumes  
of attack traffic to scrubbing centres.

WHAT CUSTOMER PROFILES 
DO WE TARGET?
Corero’s Ideal Customer Profile (‘ICP’)  
is broken down into 3 distinct groups.  
The first being Tier 2 or Tier 3 internet 
service providers whose commercial 
customers would be potential customers 
for a DDoS Protection Service. The second 
group consists of hosting, edge and cloud 
providers that provide critical services and 
infrastructure to business customers.  
The third group comprises SaaS providers 
that have their own infrastructure which 
requires protection to ensure service 
availability for their customers.

20+ YEARS OF EVOLVING DDOS ATTACKS

MafiaBoy DDoS:
Yahoo!, Amazon, Dell, 
CNN, eBay, E*TRADE 

Organized Crime:
Extortion

Coordinated  
uS Bank attacks:
Grew to 200 Gbps, 
and continue today

Mirai Code:
The Tbps era of 
attacks, OVH

Memcached blows away 
the attack size record:
1.3Tbps GitHub  
1.7Tbps US ISP

754M ppS 
Multivector 
Attack

Spammers 
Discover Botnets

estonia:
Parliament, Banks, 
Media, Estonia, 
Reform Party

500 Gbps 
Hong kong Attacks:
France swarmed after 
terror attack PlayStation  
& Xbox hit at Christmas

Operation 
payback

Anon hits Church 
of Scientology

protonMail 
Attack

Massive Attack 
launched Against DyN

500 ppS 
SyN Flood

Carpet bombing / 
Spread spectrum

Rio Olympics:
540 Gbps

Spamhaus Attack:
Reported to reach 
310 Gbps

AwS Attack 
2.3 tbps

Super Bowl 
DDoS  
Attack

1993

2001

2003

2005

2007

2009

2011

2013

2016

2017

2018

2019

2020

2021

2022

2023

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CORERO EXPLAINED CONTINUED

WHAT STRATEGIC ALLIANCES 
DO WE HAVE?
Akamai Technologies
Akamai Technologies, Inc. is an NASDAQ 
listed company (NASDAQ: AKAM) 
(‘Akamai’) that provides market-leading 
content delivery network, cybersecurity, 
DDoS mitigation, and cloud services. 
Akamai is headquartered in Cambridge, 
Massachusetts, with revenue of $3.8bn in 
2023. The company operates a network of 
servers worldwide, renting the capacity of 
the servers to customers running websites 
or other web services, in order to provide 
greater speed or availability to the customer 
by using an Akamai owned server that is 
located closer to the user. Corero entered 
into the partnership with Akamai in H2 2023, 
enabling Akamai to provide Corero’s best-
in-class DDoS protection to its customers, 
complementing its own Prolexic cloud 

DDoS solution with Corero’s on-premises 
technology, allowing for full coverage  
across cloud, on-premises and hybrid DDoS 
protection. 

Juniper Networks
Juniper Networks, Inc. (NYSE: JNPR) 
(‘Juniper’) is one of the world’s largest 
networking product, solutions and services 
companies, with revenues of over $5.6bn 
in 2023. Corero has a global partnership 
agreement with Juniper enabling Juniper 
to sell Corero’s SmartWall Threat Defence 
Director (‘TDD’) software product in 
conjunction with its own MX and PTX Series 
routers. Juniper and Corero have developed 
this fully integrated solution for large-scale 
network-edge DDoS defence that leverages 
powerful filtering capabilities in the latest 
generation of Juniper’s MX and PTX 
Series routers.

GTT Communications
GTT Communications, Inc. (NYSE: GTT) 
(‘GTT’) is a leading global cloud networking 
provider to multinational clients, with 
over 600 points of presence (‘POPs’), with 
revenues of $1.7bn in 2022. GTT operates a 
global Tier 1 internet network and provides 
a comprehensive suite of cloud networking 
services. GTT customers can purchase IP 
transit with DDoS protection powered by 
Corero’s SmartWall ONE solutions which are 
deployed in the GTT network. 

WHERE ARE WE LOCATED?
Corero’s key operational centres are in 
Marlborough, Massachusetts in the USA 
and Edinburgh in Scotland, UK, with the 
Company’s EMEA headquarters and 
registered office at Salisbury House,  
29 Finsbury Circus, London, EC2M 5QQ, UK.

HOW DOES THE  
TECHNOLOGY WORK?
HOW DO WE COMBAT
DDOS ATTACKS?

DDoS mitigation providers typically rely  
on NetFlow monitoring, to identify internet 
traffic anomalies and then re-direct that 
traffic to specialist scrubbing centres (which 
may be on-premises, or in the cloud) where 
the internet traffic can be scrubbed with a 
mix of automatic and manual interventions, 
before the remaining clean traffic is returned 
to its original destination. Corero supports 
this detect-and-redirect model with the 
Smartwall ETD product line. 

Detect and redirect can be ineffective if 
the length of the DDoS attack is short in 
duration. Continued uptime is critical for 
modern businesses with the continuity of 
their services being fundamental to their 
success. 

To meet the needs of these customers, 
Corero offers the Smartwall ONE TDS, 
TDD and ETD product lines featuring Deep 
Packet Inspection (‘DPI’), rather than flow 
monitoring, processing packets in real-time, 
in the data path or at the network edge, 
with a high level of automation based on 
exact match and behavioural heuristics-
based rules. These products deliver highly 
scalable real-time DDoS protection up to 
tens of terabits per second, which makes 
Corero’s cost-performance ratio superior in 
the industry.

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SMARTWALL ONE
Corero’s SmartWall ONE solution is highly 
automated, detecting and mitigating attacks 
surgically without the expensive intervention 
of security analysts or network operators, 
who may not even know the network is 
under attack before SmartWall provides 
an alert to them that it is already blocking 
what would otherwise have been a business 
damaging attack.

We have combined advances in Intel x86 
multicore CPU technology, Data Plane 
Development Kit (‘DPDK’) software for 
packet processing acceleration, and 
high-performance network interface cards 
(‘NICs’), together with an innovative, 
patented, and highly efficient software 
architecture, to develop a new generation 
of physical and virtual appliances providing 
breakthrough price/performance for 
DDoS defence. 

With varied deployment topologies  
(in-line, datapath, scrubbing or edge) 
Corero’s SmartWall ONE family of solutions  
utilise innovative, patented technology  
to automatically and surgically remove  
the DDoS attack traffic, leaving good  
traffic to flow unimpeded. 

Protection is available in cost-effective 
scaling increments, from tens-of-gigabits 
to tens-of-terabits, supporting the 
full spectrum of customer bandwidth 
protection requirements. 

SmartWall ONE appliances perform 
sampled DPI to generate security metadata 
from traffic flows. The internal rules-engines 
examine this metadata to flag offending 
packet flows in real-time and block attacks. 
At the same time, the security metadata 
is streamed to the Corero SecureWatch® 
Analytics platform, where further analysis, 
involving correlation with other performance 
metrics and event data, enables rapid 
identification of new attack vectors. 
SecureWatch Analytics can formulate new 
mitigation rules for these vectors that are 
distributed out to each SmartWall instance.

SECUREWATCH
The Corero SecureWatch service is a 
tiered offering comprised of configuration 
optimisation, monitoring and mitigation 
response services.

Corero’s SecureWatch Analytics application 
leverages Splunk’s analytics engine and 
provides detailed reporting to transform 
Smartwall’s sophisticated DDoS event data 
into easily consumable dashboards accessed 
via a multi-user web GUI. This enables 
customer security analysts to monitor and 
manage incident responses, with the ability 
to conduct sophisticated forensic analysis.

The Corero multi-tenant SmartWall Service 
Portal enables a service provider’s customers 
(or ‘tenants’) to gain visibility into attacks 
via per-tenant dashboards. Service provider 
customers can assign tenant service levels 
and automatically distribute reports which 
showcase the value of the protection their 
customers are receiving.

SOLUTIONS THAT FIT ANY INFRASTRUCTURE

INLINE

•  Deployed directly on 

Internet links, in front of 
edge routers

•  Inspects all traffic to deliver 
fast and accurate protection

DATAPATH
•  Deployed locally, adjacent to 

EDGE
•  Deployed centrally, remote 

SCRUBBING
•  Deployed centrally, remote 

edge routers

from edge routers

from edge routers

•  Inspects all, or selected, 
traffic to deliver fast and 
accurate protection

•  Inspects edge traffic samples 

and instructs routers to 
protect locally at the edge

•  Inspects edge traffic samples 
and redirects attack traffic to 
scrubbing protection devices

ANALYTICS

SERVICES

•  Traffic & Attack Analysis

•  World-Class SOC Service

PORTAL
•  Multi-Tenant Protection SaaS

CLOUD

•  Saturation Protection

•  Trend, Alerting, Reporting

•  24x7x365 MSSP/Support

•  Detailed Reports & Visibility

•  Business Continuity

SUPPORTED BY

Corero Network Security plc  Annual Report and Accounts 2023

15

CUSTOMER PROPOSITION

SPEED

SIMPLICITY

FLEXIBILITY

Attacks mitigated in seconds  
versus minutes or tens of minutes  
for competing technologies with  
zero downtime

Automatic software, plug and play 
appliances for lowest TCO

Multiple deployment options: on-
premises, hybrid and cloud protection

SCALABILITY

VISIBILITY

SUPPORT

Modular and distributed, pay-as-you-
grow protection

Accurate, forensic-level attack and 
traffic visibility with SecureWatch 
Analytics

World-Class 24x7x365 SOC support 
with SecureWatch Managed Services

MATURITY JOURNEY

SELLING DDOS AS A SERVICE

 • Per-Tenant visibility into DDoS attacks

 • Tenant Portal for Alerting & Reporting

 • Subscribe/Upsell/Retain Tenants

DDOS PROTECTION

 • Full visibility into DDoS attacks

 • Victim Tenant(s) not impacted

 • Other Tenants unaffected

DDOS MITIGATION

 • Basic visibility into DDoS attacks

 • Victim Tenant(s) impacted/sacrificed

 • Other Tenants may be impacted

NO PROTECTION

 • No visibility of DDoS

 • Victim Tenant(s) offline

 • Other Tenants impacted

 • Am I being attacked?

The maturity journey depicts a typical 
Corero customers’ DDoS journey and 
Corero’s ability to support customers at 
all stages of their DDoS growth needs.

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INVESTOR PROPOSITION

SUPERIOR PERFORMANCE

CUSTOMER RELATIONSHIPS

High performance, best-in-class solutions: 
automatic DDoS protection without 
disrupting or delaying legitimate network 
traffic. Corero automatically mitigates 
DDoS attacks in seconds, faster than any 
other solutions in the market.

We enjoy high levels of trust with our 
customers which translates into high 
retention rates and long-term relationships.

High annualised recurring revenues 
demonstrate such enduring relationships.

Corero solutions provide continuity 
of service and allow our customers to 
generate incremental revenue.

Our 98% customer support contract renewal 
rate demonstrates the quality of both our 
solutions and customer service.

CUSTOMER SUPPORT 
AND SERVICE

We provide high levels of customer 
support and service through our 
solutions engineers, SOC and 
Operations teams- worldwide, 
24x7x365.

We provide high levels of 
compatibility with customer 
indigenous equipment and systems.

HIGH GROWTH MARKETS

The increasingly interconnected world 
grows faster and more complex with 
higher speed connections; higher 
capacities and meshed networks; the 
proliferation of IoT and 5G devices; and 
the continued growth of cloud services.

PROPRIETARY INTELLECTUAL 
PROPERTY

In-house expertise and proprietary 
knowledge means we can innovate without 
significant outsourcing dependencies or 
royalty costs.

Over 20 years of DDoS protection software 
development expertise leveraged to 
expand feature set.

ATTRACTIVE BUSINESS 
MODEL, PERFORMANCE 
AND WORLD CLASS TEAM

We have high gross margins, 
recurring and repeat business.

Our world class, highly skilled team 
have decades of experience in the 
market we operate in.

TIME TO MARKET

Superior solution already developed 
and field proven.

No development cycle with customers.

Very quick and simple deployment 
cycles with high software content.

On-going R&D investment in our 
solutions and product enhancements.

SCALABILITY – ORGANIC 
AND PARTNERS

We are establishing additional routes to market 
through our own direct sales team, resellers, 
distributors, and strategic partnerships.

Where customers select appliance-based 
deployment, manufacturing is outsourced, 
mitigating any in-house supply constraints.

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CHIEF EXECUTIVE OFFICER’S REVIEW

THE COMPANY 
DELIVERED A STRONG
PERFORMANCE
ACROSS FY 2023.

Carl Herberger
CHIEF EXECUTIVE OFFICER

ReVeNue

11%

increase

ARR

17%

increase

I AM DELIGHTED 
TO HAVE JOINED 
CORERO AT SUCH 
AN EXCITING TIME, 
WITH THE BUSINESS 
DELIVERING STRONG 
GROWTH ACROSS ALL 
OUR KEY METRICS IN 
FY 2023, ALONGSIDE 
THE CONTINUED 
EXPANSION OF BOTH 
OUR CUSTOMER BASE 
AND MARKET REACH.”

18

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STRATEGIC REPORT

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STRATEGIC PROGRESS
As the DDoS market and cybersecurity 
sector continue to evolve at a fast pace, 
and with a myriad of new digital threats 
emerging, the Company continues to focus 
on ensuring it is best positioned to remain at 
the forefront of the industry.

The following key strategic pillars have been 
established to underpin operational and 
financial progress and drive growth in 2024 
and beyond:

 • Increasing our customer base and market 
reach, as demonstrated by the addition 
of Techenabler to our customer base in 
the Brazilian market. 

 • Growing strategic alliances by entering 
into a new partnership with Akamai to 
offer complementary technology to 
Akamai’s Prolexic Cloud offering.

 • Better monetising our existing services 

and introducing new services: we continue 
to enhance the protection and network 
security visibility for our customers.

 • Amplifying our demand generation 
programmes: increased on-line 
advertising and marketing campaigns 
including webinars and thought 
leadership speaking opportunities.

 • Continuing to increase our technological 
innovation leadership by investing in 
product development and ensuring we 
respond rapidly to market trends and 
technological advancements in DDoS 
protection technology. The launch of the 
SmartWall ONE solution during 2023 
was a significant milestone for Corero as 
we cemented our position at the cutting 
edge of the technological landscape. The 
SmartWall ONE solution delivers a modular 
architecture which interfaces with industry-
leading routers, increased protection 
against DNS-based attacks, and a new 
100G software appliance solution.

INTRODUCTION
The Company delivered a strong 
performance in FY 2023, underpinned by 
new business momentum and organic 
growth. Despite a difficult macro-economic 
environment, we were able to deliver double 
digit growth in both revenue and ARR whilst 
repaying our outstanding bank loan facility 
and finishing the year cash generative, 
EBITDA profitable and debt free.

We continued to execute our focused sales 
strategy during the Period. ARR increased 
to $16.9 million as at 1 January 2024, growth 
of 17% over the prior year (ARR at 1 January 
2023: $14.4 million), driven by continued 
demand for Corero’s subscription-based and 
DDPaaS products. This strong performance 
continues to improve earnings visibility for 
the Company going forward, which, when 
aligned with the Group’s healthy business 
pipeline built through 2023, ensures Corero 
remains well positioned for revenue growth 
in 2024 and beyond.

Our global partnership with Akamai, 
announced in September 2023, has already 
significantly expanded Corero’s routes 
to market and we anticipate that the 
relationship will deliver incremental revenue 
growth in the medium to long term. We also 
secured our first major LATAM partnership in 
the Period, with network solutions distributor 
TechEnabler supporting our growth in Brazil 
and the wider region as we aim to broaden 
our international reach.

Corero has built both a market-leading 
product and management team to execute 
the Company’s enhanced sales strategy, 
driven by the following levers:

 • Large and high growth addressable 

market;

 • Market leading proprietary technology 
with global customer service capability;

 • Continued investment in sales and 

channel resources;

 • Scalable and recurring revenue model 

with strong gross margins; and

 • Strong base of existing customers  

and strategic partnerships.

DDOS ADDRESSABLE MARKET 
AND MARKET DRIVERS
The global DDoS protection market was 
worth c.$3.6 billion in 2023 and is expected 
to reach $9.1 billion by 2030 at a CAGR of 
14%1. Corero operates within a significant 
segment of this overall market and estimates 
that the total addressable market exceeds 
$2.0 billion for its SmartWall ONE solutions. 

Cybercriminals are increasingly opting 
to launch DDoS attacks on corporations, 
favouring the method over more expensive 
and higher risk forms of cyberattacks, or even 
using DDoS as camouflage for ransomware 
attacks. A growing number of businesses 
globally are beginning to recognise DDoS 
attacks as their biggest cybersecurity concern 
largely due to the considerable reputational 
damage they can inflict2.

Companies across all sectors and of all sizes 
are vulnerable to DDoS attacks, including 
those operating in fast-growing markets like 
satellite communications and cryptocurrency. 
Alarmingly, recent market research revealed 
that attacks on financial services rose a 
staggering 154% between 2022 and 20233, 
which, given the increasing digitalisation of 
banking, puts consumers in great jeopardy if 
corporations are not safeguarded by DDoS 
defence and mitigation solutions.

Regionally, EMEA has suffered a sharp 
increase in DDoS attacks. Cybersecurity 
commentators believe this spike can be 
attributed to the geopolitical turmoil and 
resultant cyber warfare stemming from Russia’s 
invasion of Ukraine, including the emerging 
trend of hacktivism4. Strategic regional 
expansion is integral to Corero’s growth 
strategy, and post-period-end, we extended 
our partnership with cybersecurity solutions 
specialist and distributor Ingecom to increase 
our presence and exposure in EMEA.

DDoS attacks, however, are prevalent across 
the globe, with North America estimated 
to account for 39% of the global DDoS 
protection and mitigation market growth 
until 20275. Corero’s partnership with 
Akamai, together with our investment in US 
sales and marketing initiatives and strategic 
North American recruitment, has ensured 
the Company remains well positioned to 
capitalise on new mandate opportunities 
within the US market. This is reflected by 
the geographic mix of the Group’s customer 
wins across 2023, where Corero secured 
contracts with a significant number of US 
and Canadian based companies.

Corero Network Security plc  Annual Report and Accounts 2023

19

CHIEF EXECUTIVE OFFICER’S REVIEW CONTINUED

OUTLOOK
Corero expects demand for the Company’s 
market-leading DDoS protection and 
mitigation solutions to continue to increase as 
more and more companies proactively seek 
trusted providers to help combat the fast-
growing rise in these highly disruptive attacks.

In 2024, Corero will build upon the robust 
foundations established in 2023. We are highly 
focused on continuing our new business 
and partnership momentum and are actively 
pursuing prudent regional expansion objectives.

Our focus on profitability and positive cash-
flow generation, whilst delivering both ARR 
and revenue growth, will enable us to further 
demonstrate the scalability of our business 
model. This will be supported, in part, by 
continued investment in R&D as we aim to 
roll-out new product features and innovative 
service enhancements.

With the strong performance in FY 2023 and 
positive start to 2024, the Board is confident the 
Company can deliver on its growth prospects by 
growing Corero’s market share and reinforcing 
its reputation as the go-to DDoS protection 
solutions provider.

Carl Herberger
CHIEF EXECUTIVE OFFICER

26 March 2024

1   MarketsandMarkets – DDoS Protection and Mitigation Security Market Report, https://shorturl.at/gsCKX.

2   T&T – 2023 Cybersecurity Insights Report, https://www.itprotoday.com/attacks-and-breaches/ddos-not-ransomware-top-business-concern-edge-networks.

3   FS-ISAC/Akamai – DDoS: Here to Stay Report, https://shorturl.at/hMY28. 

4   Europol – Cyber Attacks: The Apex of Crime-as-a-Service, https://sofiaglobe.com/2023/09/13/europol-russias-war-on-ukraine-led-to-significant-boost-in-ddos-

attacks-on-eu-targets/. 

5   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.

20

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Corero Network Security plc  Annual Report and Accounts 2023

21

FINANCIAL REVIEW

I AM PLEASED TO 
REPORT THAT THE 
COMPANY ACHIEVED 
DOUBLE DIGIT GROWTH 
ACROSS BOTH REVENUE 
AND ARR, WAS CASH 
GENERATIVE AND 
PROFITABLE,
EXITING THE 
YEAR DEBT 
FREE.

Phil Richards
CHIEF FINANCIAL OFFICER

22

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Overview

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Corporate Directory

REVENUE AND GROSS 
MARGINS
Revenue in the year ended 31 December 2023 
increased by 11% to $22.3 million in 2023 from 
$20.1 million in 2022.

Annualised recurring revenues increased 
by 17% in the year with ARR of $16.9 million 
as at 1 January 2024, driven by growth in 
DDPaaS and software subscription orders 
(ARR at 1 January 2023: $14.4 million). 

The Company’s overall gross margin 
improved in the full year to 90% (2022: 
gross margin of 87%) driven by revenue mix 
changes in 2023. 

Software subscription license and appliance 
revenues in particular saw better margin 
capture while other revenue streams 
recorded similar margins to prior periods.

OPERATING EXPENSES AND 
R&D INVESTMENT
Underlying operating expenses 
excluding foreign exchange movements 
on intercompany balances and before 
depreciation and amortisation increased 
by $1.5 million from $16.5 million to $18.0 
million due to continued investment both in 
sales and product development.

PROFITABILITY
The Group reported a positive EBITDA of 
$1.8 million in 2023. Adjusted EBITDA for 
the year was $2.2 million (2022: $1.7 million). 
Further details on these measures are 
provided in the Key Performance Indicators 
section on pages 24 to 25.

Loss after taxation was $0.2 million 
(2022: profit of $0.6 million). Basic and 
diluted loss per share was 0.0 cents per 
share (2022: profit 0.1 cents per share).

OPERATING CASH AND 
CASH EQUIVALENTS
Overall, net cash generated from operating 
activities amounted to $3.1 million in the year 
(2022: used of $1.7 million), primarily due to 
the timing of working capital movements. 
Cash and cash equivalents excluding the 
impact of exchange rates decreased by  
$0.8 million (2022: decrease of $5.2 million). 
The Company used its strong balance sheet 
position to repay in full its bank term loan 
facility early during the year. The total amount 
of the bank term loan repaid during 2023 
amounted to $1.2 million.

Net cash, defined as cash at bank less total 
borrowings, at 31 December 2023 was 
$5.2 million (2022: $4.4 million). 

Phil Richards
CHIEF FINANCIAL OFFICER

26 March 2024

Underlying operating expenses included 
a depreciation charge of $0.3 million 
(2022: $0.5 million) and an amortisation 
charge for research and development 
(‘R&D’) of $1.5 million (2022: $1.7 million). 
During the year, the Group enhanced its 
product offerings with new features and 
functionality, with R&D investment of 
$1.8 million (2022: $1.7 million).

Capital expenditures in property plant  
and equipment were $0.8 million  
(2022: $0.4 million).

The charge for share based payments 
amounted to $0.2 million in 2023 (2022:  
$0.4 million).

Financing costs were lower in the year at 
$0.2 million (2022: $0.3 million) due to the 
repayment of the Company’s debt facility  
in 2023.

ADJuSteD eBitDA

$2.2m

+29%

-$2.5m

2019

-$0.6m

2020

2021

$3.2m

2022

$1.7m

2023

$2.2m

pROFit/(lOSS)  
BeFORe tAXAtiON

-$0.2m

-150%

-$6.6m

2019

-$4.0m

2020

2021

$1.4m

2022

$0.4m

2023

-$0.2m

GROSS MARGiN

90.3%

+3%

2019

2020

2021

2022

2023

81.0%

77.3%

85.1%

87.2%

90.3%

Net CASH

$5.2m

+18%

2019

2020

2021

2022

2023

$5.4m

$4.4m

$5.2m

$7.6m

$8.4m

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KEY PERFORMANCE INDICATORS

Represents revenue from the sale 
of Corero solutions.

peRFORMANCe
Revenue for the year ended 31 December 
2023 increased to $22.3 million 
(2022: $20.1 million).

Represents the normalised annualised 
recurring revenues and includes recurring 
revenues from contract values of annual 
support, software license subscription 
and from DDoS protection-as-a-Service 
(‘DDpaaS’) contracts.

peRFORMANCe
Annualised recurring revenues increased  
in the year with ARR of $16.9 million as  
at 1 January 2024, driven by growth in  
DDPaaS and software subscription orders  
(ARR at 1 January 2023: $14.4 million).

Represents gross profit divided by 
revenue. it measures the Group’s 
profitability before overheads. 

peRFORMANCe
Corero’s gross margin of 90% increased from 
2022 of 87%. 

REVENUE

$22.3m

+11%

2019

2020

2021

2022

2023

$9.7m

$16.9m

$20.9m

$20.1m

$22.3m

ARR (ANNUALISED 
RECURRING REVENUES)

$16.9m

+17%

$7.2m

$9.8m

2019

2020

2021

2022

2023

$12.8m

$14.4m

$16.9m

GROSS MARGIN %

90.3%

+30 basis points

2019

2020

2021

2022

2023

81.0%

77.3%

85.1%

87.2%

90.3%

24

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Corporate Directory

ADJUSTED EBITDA 

$2.2m

+29%

-$2.5m

2019

-$0.6m

2020

2021

$3.2m

2022

$1.7m

2023

$2.2m

PROFIT/(LOSS) BEFORE 
TAXATION

-$0.2m

-150%

-$6.6m

2019

-$4.0m

2020

2021

$1.4m

2022

$0.4m

2023

-$0.2m

NET CASH

$5.2m

+18%

2019

2020

2021

2022

2023

$5.4m

$4.4m

$5.2m

$7.6m

$8.4m

peRFORMANCe
Adjusted EBITDA of $2.2 million increased 
29% from prior year (2022: $1.7 million).

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. For further details please 
see note 8.

Represents the Company’s loss arising 
from operations, after depreciation, 
amortisation and any finance income or 
expenditure before any taxation charges 
or credits.

peRFORMANCe
Corero delivered a loss before taxation of 
$0.2 million (2022: profit before taxation of 
$0.4 million). 

Represents cash at bank less 
total borrowings.

peRFORMANCe
Net cash as at 31 December 2023 was 
$5.2 million (2022: $4.4 million). The 
Company repaid all of its outstanding bank 
loan debt during 2023. At 31 December, 
borrowings were nil (2022: $1.2 million).

Corero Network Security plc  Annual Report and Accounts 2023

25

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:

WHY THEY MATTER

WHAT MATTERS TO THEM

CUSTOMERS 

Customers are the lifeblood of a successful 
growing business.

Corero customers are concerned with having products and services 
that protect their online presence and operations from the increasing 
threat of DDoS attacks. 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.

SHAREHOLDERS

Shareholders own the business. They are the 
providers of capital to grow and invest for 
future success.

Concerned with a broad range of issues including, but not limited to, 
Corero’s financial and operational performance, strategic execution, 
investment plans and governance.

PARTNERS

Partners are an extension of Corero, representing 
the Corero brand in the market, providing an 
additional route to market to scale the business.

Corero’s partners harness Corero’s innovative 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

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.

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.

R
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S

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26

Corero Network Security plc  Annual Report and Accounts 2023

Overview

STRATEGIC REPORT

Governance

Financial Statements

Corporate Directory

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 
ON-GOING CUSTOMER SUPPORT.”

CORERO’S ENGAGEMENT

THE BOARD’S ENGAGEMENT

KEY EVENTS IN THE YEAR

Executive Directors meet with customers 
throughout the year and feedback issues 
to the Board.

The Board reviews strategy and monitors 
performance during the year with the aim of 
meeting customers’ needs more effectively.

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 in tenders, in 
technical presentations, in quoting, in 
invoicing, in deployment, and in after-sales 
and on-going customer support.

Communications such as annual 
reports, interim reports and notices  
of general meetings.

Investor roadshows, Stock Exchange 
announcements and press releases; 
www.corero.com.

Board attendance at the AGM to  
answer questions.

Feedback on investor meetings held  
by the Chairman. 

Executive Director meetings with investors.

Corero consulted with major shareholders 
and key strategic partners during investor 
roadshows and forums.

Partner Code of Conduct define 
expectations of responsible business  
and behaviour. 

Board updates regarding partner 
relationships, development  
and engagement.

Regular Board reports, including 
updates on performance and key partner 
issues. Senior management engaged in 
quarterly review of progress of strategic 
partner relationships.

The Board provides on-going consideration 
of key strategic partnerships, and whether 
to change or add to existing relationships.

Board engaged in review of progress  
of strategic partner relationships.

Board member engagement with  
Juniper and Akamai management.

Various activities and forums to foster 
participation in Group events, invite 
opinions, questions and ideas.

Regular ‘All Hands’ meetings are held.

Board members attend the employee 
‘All Hands’ meetings where appropriate.

Performance appraisal and objective 
setting processes are performed annually.

Corero Network Security plc  Annual Report and Accounts 2023

27

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, as a subset 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 its Ideal Customer Profile (‘ICP’);
• 

focusing its lead generation and sales resources, 
and product development, on its ICP;

•  working closely with go-to-market partners to 

grow its sales opportunity pipeline, progress sales 
opportunities and generate revenue and cash; and

•  developing relationships with new go-to-market 

partners and channel partners to expand its routes 
to market.

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 Company’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 Company’s system of internal 
control and for reviewing its effectiveness, whilst the role of 
management is to implement policies on risk management and 
control. The Company’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 Company 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 Company, 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.

28

Corero Network Security plc  Annual Report and Accounts 2023

Overview

STRATEGIC REPORT

Governance

Financial Statements

Corporate Directory

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.

TECHNOLOGY CHANGE AND INNOVATION

MARKET AWARENESS

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.

Corero is an emerging player in the DDoS 
prevention market and competes with much 
larger established organisations. If Corero is not 
successful in connecting with the market and 
raising its profile this will compromise growth plans. 
To raise market awareness of Corero and its DDoS 
protection solutions, the Company will continue 
to invest in targeted digital marketing and lead 
generation programmes, together with its brand 
awareness programmes.

Corero Network Security plc  Annual Report and Accounts 2023

29

ENVIRONMENTAL, SOCIAL AND GOVERNANCE (ESG) REPORT

CORERO ASPIRES TO CARRY
OUT ITS BUSINESS TO THE
HIGHEST ETHICAL STANDARDS.

we treat customers, partners, suppliers and employees in a professional, 
courteous and honest manner.
we are committed to complying with environmental, social and governance 
requirements and Corero is dedicated to improving the security and availability 
of the internet for all.

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; and

Employee  
Empowerment  
& Team Work.

In common with most intellectual property 
technology businesses, we know that the 
expertise, experience, and passion of our 
employees is genuinely what make 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 mitigate the growing number of 
increasingly sophisticated DDoS attacks. 
This service and customer support offering 
is therefore an important competitive 
differentiator. Customers tell us they value 
the service levels and our team regularly 
receives very favourable feedback from  
our customers. 

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 on-going, continuous manner; 
shareholders, through investor relations 
roadshows; and employees as a part of 
regular ‘All Hands’ meetings.

EMPLOYEES, DIVERSITY AND 
INCLUSION AND EMPLOYEE 
INTERACTION
Our employees are Corero’s most important 
asset and the continued and sustained 
development of the Company relies on 
its ability to retain and attract high calibre 
employees and are proud to have many 
experienced and talented employees in our 
team. Corero operates an employee share 
option plan, with awards approved  
by the Corero Remuneration Committee. 

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.

30

Corero Network Security plc  Annual Report and Accounts 2023

Overview

STRATEGIC REPORT

Governance

Financial Statements

Corporate Directory

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, gender diverse and diverse 
organisation. For example, many 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. 

Employees are regularly informed of  
matters concerning their interest and the 
financial factors affecting the Company.  
The Company uses company-wide forums  
to communicate matters as well as team  
and individual meetings.

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 for the 
users and customers of those businesses 
(sometimes in a mission critical way) and  
the knock-on effects to populations as-
a-whole. 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 16 to 31 is signed by order 
of the Board.

Phil Richards
COMPANY SECRETARY

26 March 2024

uN SD Goals

Good Health 
and well Being

Quality education

Decent work and  
economic Growth

peace, Justice and  
Strong institutions

How Corero contributes

Ensuring healthy lives and promoting well-being at all ages is essential to sustainable 
development. We are committed to our people and their wellbeing and are proud  
of our supportive, collaborative culture and strong values.

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.

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.

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 connect world where every business, application and individual is protected from 
DDoS attacks.

Corero Network Security plc  Annual Report and Accounts 2023

31

BOARD OF DIRECTORS

Jens Montanana
EXECUTIVE CHAIRMAN

Richard last
INDEPENDENT  
NON-EXECUTIVE DIRECTOR*

peter George
INDEPENDENT  
NON-EXECUTIVE DIRECTOR

Andrew Miller
NON INDEPENDENT  
NON-EXECUTIVE DIRECTOR

APPOINTED

6 August 2010

22 May 2008

3 January 2019

1 June 2020

1 January 2024

6 September 2013

21 September 2023

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.

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 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.

CURRENT APPOINTMENTS

CEO of Datatec Limited and 
Director of various Datatec Limited 
subsidiary companies. 

Chairman of Gresham Technologies 
plc, an LSE listed software and 
services company and Tribal Group 
plc, a technology company. Richard 
is also a Director of a number of 
private companies.

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.

Peter is 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 
to 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 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.

Carl Herberger, CEO of Corero 

Ashley Stephenson (‘CTO’) first 

Phil joined Corero as CFO in 

Network Security, brings over 

joined Corero Network Security 

November 2022, bringing over 

25 years of cybersecurity leadership 

as Executive Vice President of the 

15 years of finance and operational 

experience. As an internationally 

Network Security division, with 

expertise to the Group. Phil joined 

recognized expert, he has held 

responsibility for product and 

Corero from Kambi Group plc, a 

executive roles at top security firms 

solution strategy in March 2012, 

Swedish-listed premium global 

including Radware, Evolve IP, Allied 

and was appointed Chief Executive 

sportsbook provider, working 

InfoSecurity, and most recently as 

Officer of Corero in January 2013. 

across the organisation for six 

Principal Security Consultant and 

An IT industry executive and 

years as SVP finance to oversee 

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.

internet technology entrepreneur, 

their growth and international 

Ashley has operating experience 

expansion, including moving to 

in the United States, Europe and 

Philadelphia to oversee the setup 

Asia. His previous experience 

and delivery of their US facing 

includes: CEO of Reva Systems, 

service. Qualifying as an accountant 

which was acquired by ODIN, 

with KPMG UK, and having spent 

and CEO of Xedia Corporation, 

one year in the German and two 

which was acquired by Lucent. 

years in the Swedish respective 

He has provided strategic 

KPMG organisations, Phil then joined 

advisory services to a number 

Royal Dutch Shell as a financial 

of leading multinational IT 

controller where he spent two years 

companies including technology 

prior to joining Kambi Group plc.

He is a fellow of the Institute  

of Chartered accountants.

vendors, distributors and services 

companies. 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. 

Ashley has deep technology  

and software development skills 

and experience.

CEO of Evolv Technology Inc.

None.

None.

Director of Eyealike, Inc. and 

Director of Corero Network 

StepVest LLC.

Security (UK) Ltd & Corero Group 

Services Ltd.

32

Corero Network Security plc  Annual Report and Accounts 2023

Overview

Strategic Report

GOVERNANCE

Financial Statements

Corporate Directory

Nomination Committee

Remuneration Committee

Audit, Risk and  
Compliance Committee

Chair of Committee

Carl Herberger
CHIEF EXECUTIVE OFFICER

Ashley Stephenson
CHIEF TECHNOLOGY  
OFFICER

phil Richards
CHIEF FINANCIAL OFFICER/
COMPANY SECRETARY

APPOINTED

BACKGROUND & EXPERIENCE

founder and CEO of Datatec 

Limited, established in 1986 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 

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.

Jens has spent the majority 

of his over 30-year career in 

Richard has over 20 years’ senior 

Peter George is a US based 

experience in information technology 

executive with over 30 years’ 

Andrew Miller was until 31 May 

2020 the CFO of the Company. 

the technology industry with 

having worked at board level for 

experience in the IT networking 

He was until January 2022 the CFO 

considerable operational and 

a number of publicly quoted and 

and cybersecurity industry. 

and COO of C5 Capital Limited, 

commercial experience in 

private companies in the technology 

the resale and distribution of 

sector. He is a Fellow of the Institute 

information technology hardware 

of Chartered Accountants in England 

and software solutions. He is the 

and Wales (‘FCA’). 

*  Richard Last is a Corero shareholder 

Peter is the CEO of Evolv 

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 

Inc., which was acquired by 3Com. 

manner and is independent.

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.

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 

to 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 

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  

responsible for growing a $2 billion 

and 5,000 employee voice and data 

20 years’ experience in the 

technology industry.

business in EMEA.

CURRENT APPOINTMENTS

Director of various Datatec Limited 

plc, an LSE listed software and 

subsidiary companies. 

services company and Tribal Group 

plc, a technology company. Richard 

is also a Director of a number of 

private companies.

6 August 2010

22 May 2008

3 January 2019

1 June 2020

1 January 2024

6 September 2013

21 September 2023

Carl Herberger, CEO of Corero 
Network Security, brings over 
25 years of cybersecurity leadership 
experience. As an internationally 
recognized 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’) 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. 
An IT industry executive and 
internet technology entrepreneur, 
Ashley has operating experience 
in the United States, Europe and 
Asia. His previous experience 
includes: CEO of Reva Systems, 
which was acquired by ODIN, 
and CEO of Xedia Corporation, 
which was acquired by Lucent. 
He has provided strategic 
advisory services to a number 
of leading multinational IT 
companies including technology 
vendors, distributors and services 
companies. 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. 

Ashley has deep technology  
and software development skills 
and experience.

Phil joined Corero as CFO in 
November 2022, bringing over 
15 years of finance and operational 
expertise to the Group. Phil joined 
Corero from Kambi Group plc, a 
Swedish-listed premium global 
sportsbook provider, working 
across the organisation for six 
years as SVP finance to oversee 
their growth and international 
expansion, including moving to 
Philadelphia to oversee the setup 
and delivery of their US facing 
service. Qualifying as an accountant 
with KPMG UK, and having spent 
one year in the German and two 
years in the Swedish respective 
KPMG organisations, Phil then joined 
Royal Dutch Shell as a financial 
controller where he spent two years 
prior to joining Kambi Group plc.

He is a fellow of the Institute  
of Chartered accountants.

CEO of Datatec Limited and 

Chairman of Gresham Technologies 

CEO of Evolv Technology Inc.

None.

None.

Director of Eyealike, Inc. and 
StepVest LLC.

Director of Corero Network 
Security (UK) Ltd & Corero Group 
Services Ltd.

Corero Network Security plc  Annual Report and Accounts 2023

33

EXECUTIVE CHAIRMAN’S CORPORATE 
GOVERNANCE INTRODUCTION

Jens Montanana
EXECUTIVE CHAIRMAN

THE BOARD IS COMMITTED TO CONTINUE 
TO UPHOLD HIGH STANDARDS OF 
CORPORATE GOVERNANCE, ENHANCING 
SHAREHOLDER VALUE, AND ENGAGING IN 
A FAIR AND TRANSPARENT MANNER WITH 
ALL OF THE GROUP’S STAKEHOLDERS.”

BOARD COMMITMENT 
TO GOVERNANCE
The Board is committed to continue 
to uphold high standards of corporate 
governance, enhancing shareholder value, 
and engaging in a fair 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 the 
Corero Board is operating effectively. 

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. In country Board meetings 
providing the Board with the opportunity to 
informally interact with employees based in 
the UK and US office locations. 

BOARD COMPOSITION
The former Chief Executive Officer, Lionel 
Chmilewsky, resigned from the Board 
on 28 February 2023. I assumed the role 
of Executive Chairman with effect from 
15 February 2023, and Andrew Miller 
was appointed Interim Chief Operating 
Officer with effect from 1 March 2023 until 
September 2023. 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.

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 details of 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, integrity and commitment  
to Corero. 

LOOKING FURTHER AHEAD
Corero has delivered a very solid 
performance in 2023 across all metrics. 
The expectation of strong forecast growth 
in the DDoS market underpins the Board’s 
continued confidence, alongside Corero’s 
improved sales execution, and superior 
technological solution in the marketplace. 
To capitalise on this, we will continue to 
invest in the business in 2024 to deliver our 
strategic goals with the objective of creating 
long-term value for all our stakeholders.

Jens Montanana
EXECUTIVE CHAIRMAN

26 March 2024

34

Corero Network Security plc  Annual Report and Accounts 2023

Overview

Strategic Report

GOVERNANCE

Financial Statements

Corporate Directory

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

2 understand and meet 

shareholder needs  
and expectations

3 take into account wider 

stakeholder and social 
responsibilities and their 
implications for long-term 
success

4 embed effective risk 

management, considering both 
opportunities and threats, 
throughout the organisation

5 Maintain the Board as a  

well-functioning, balanced 
team led by the Chair

Corero’s strategy is focused on being the leader in real-
time, high performance DDoS protection and scaling the 
business for profitability though revenue growth.

For more information please see 
pages 4 and 5.

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.

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 visit: 
http://www.corero.com/about/
investor-relations

For more information please see 
page 26 and 27.

Ultimate responsibility for risk management rests with the 
Board. Day-to-day management of risk is delivered through 
the way we do business and our culture.

For more information please see 
pages 28 and 29.

The Board has 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 32, 33 and 35 – 39.

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 and international markets.

For more information please see 
pages 32, 33 and 35 – 39.

7 evaluate Board performance 

based on clear and relevant 
objectives, seeking continuous 
improvement

8 promote a corporate culture 

that is based on ethical values 
and behaviours

9 Maintain governance 

structures and processes 
that are fit for purpose and 
support good decision making 
by the Board

10 Communicate how the 

Company is governed and 
is performing by maintaining a 
dialogue with shareholders and 
other relevant stakeholders

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.

Corero recognises the importance of culture and values 
and in conjunction with employees defined the Company’s 
agreed values which are reinforced via training and 
performance management.

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 
page 38.

For more information please see 
pages 30 and 31.

For more information please see 
pages 36 to 39.

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 2023

35

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, two independent Non-executive Directors, one non-independent Non-executive Director 
and three Executive Directors whose Board and Committee responsibilities are set out below:

Jens Montanana

Peter George1 

Richard Last

Andrew Miller2

Ashley Stephenson

Phil Richards3

Carl Herberger4

Non-executive /  

executive Director

Non-executive

Non-executive

Non-executive

Non-executive

Executive

Executive

Executive

1 Resigned from Audit, Risk and Compliance Committee 30 January 2024

2 Appointed to Audit, Risk and Compliance Committee 30 January 2024

3 Appointed Director on 21 September 2023

4 Appointed Director on 1 January 2024

Board

Compliance Committee

Audit, Risk and  

Remuneration  
Committee

Member

Chairman

Member

Chairman

Member

Chairman

Member

Member

Member

Member

Member

Member

Nomination  
Committee

Chairman

Member

Member

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. Richard Last, Phil Richards and Carl Herberger 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 32 and 33.

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

Ashley Stephenson

Phil Richards

Carl Herberger

36

Corero Network Security plc  Annual Report and Accounts 2023

 
Overview

Strategic Report

GOVERNANCE

Financial Statements

Corporate Directory

The Board is cognisant of the lack of gender 
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 broker (Canaccord Genuity).

Corero’s Non-executive Chairman, 
Jens Montanana, is a material shareholder 
with an equity interest in Corero of 36.81% 
at 26 March 2024. 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 2024 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: 

 • Ashley Stephenson, Carl Herberger and 

Phil Richards, all Executive Directors, have 
employment agreements which provides 
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 2023,  
the Board met, virtually or physically, on  
four 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 2023 is shown  
in the table below:

Jens Montanana

Richard Last

Peter George

Andrew Miller

Ashley Stephenson

Phil Richards

Meetings  
attended

4/4

4/4

4/4

4/4

4/4

2/2

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 on-going 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 2023

37

BOARD PERFORMANCE AND REMUNERATION POLICY

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
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.

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. 
The Chief Executive Officer on-target 
bonus is set at 100% of base salary, the 
Chief Technology Officer on-target bonus 
is set at two-thirds of base salary and the 
Chief Financial Officer is set at one half of 
base salary. 

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 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.

38

Corero Network Security plc  Annual Report and Accounts 2023

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 Richard 
Last, who is the Committee Chairman, and 
member Peter George, 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. 

In the year ended 31 December 2023, 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:

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.

 • Consideration as to the effectiveness of 
the risk and control framework and that 
the processes are operating properly.

The key financial reporting judgements 
relating to the financial statements for the 
year ended 31 December 2023 which the 
ARCC have considered and discussed with 
the auditors, include:

Going concern basis for 
financial statements

Revenue recognition 

Financial 
Statements 
note

2.2

2.4

Carrying value of goodwill 
and intangible assets

2.12 and 9

The ARCC is satisfied with the treatment in 
the financial statements and the disclosure 
in the notes.

During the year, and in line with good 
governance practice, the ARCC led a 
competitive audit tender process for the  
2023 Group audit. This included an 
assessment of skillset, audit approach, 
competitive pricing and team composition. 
As a result of this, the incumbent auditors 
BDO stood down following the completion 
of the 2022 year-end audit and MHA, the 
UK independent member firm of Baker Tilly 
International, were appointed on 20 June 2023.

Richard Last 
(Committee Chairman)

Peter George* 

Meetings 
attended

2/2

1/2

REMUNERATION COMMITTEE 
(‘RC’) REPORT
The RC comprises Peter George, and 
members Jens Montanana and Richard Last. 
The RC meets at least twice a year. 

*resigned from ARCC 30 January 2024

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.

 • 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 

In the year ended 31 December 2023, the 
RC met on two scheduled occasions; 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 2023 is shown in the table  
top right:

Peter George  
(Committee Chairman)

Richard Last

Jens Montanana

Meetings 
attended

2/2

2/2

2/2

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 2023 is set out  
in note 22 of the financial statements.

NOMINATION COMMITTEE 
(‘NC’) REPORT
The NC comprises Jens Montanana 
(Chairman), Richard Last and Peter George. 
The NC meets as required. 

In the year ended 31 December 2023, 
the NC met on four scheduled occasions. 
The attendance of individual Committee 
members at NC meetings in the year 
to 31 December 2023 is shown in the 
table below:

Jens Montanana  
(Committee Chairman)

Richard Last

Peter George

Meetings 
attended

4/4

4/4

4/4

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 2023

39

DIRECTORS’ REPORT

GROUP RESULTS
The Group’s Income Statement on page 49 
shows a loss for the year of $0.2 million 
(2022: profit of $0.6 million).

GOING CONCERN
The financial position and cash flows are 
described in the Financial Review on 
page 22. An indication of likely future 
developments affecting the Company is 
included in the Strategic Report on pages 
20 to 31.

The Directors have prepared detailed 
income statement, balance sheet and 
cash flow projections for the period 
to 31 December 2025 (‘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 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 Gaza, 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 (2022: $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, 508,828,468 ordinary shares of 1p 
each (‘ordinary shares’) were in issue and 
fully paid with an aggregate nominal value 
of $6.3 million.

The market price of the ordinary shares 
at 31 December 2023 was 8.25p and the 
shares traded in the range 5.75p to 10.25p 
during the year (as at 31 December 2022 
was 9.3p and the shares traded in the 
range 9.3p to 14.5p during the year ended 
31 December 2022). 

ISSUE OF SHARES POWERS 
AT THE AGM
At the AGM held on 20 June 2023, 
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 £1,666,513.24. 

Also at the AGM held on 20 June 2023, 
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 
£499,953.97 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 22 March 2024:

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 27 March 2024:

Ordinary shares of 1 pence each

Jens Montanana*

Caraway Group Inc

Sabvest Capital Holdings Ltd

Juniper Networks Inc

Herald Investment Management Ltd

Richard Koch

Peter Kennedy Gain**

Number

187,300,406

53,586,016

50,000,000

49,179,772

44,692,121

29,701,500

16,378,246

%

36.81

10.53

9.83

9.67

8.78

5.84

3.22

* 

 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.

**  of which 4,900,000 shares are held in the name of Draper Gain Investments Ltd.

40

Corero Network Security plc  Annual Report and Accounts 2023

Overview

Strategic Report

GOVERNANCE

Financial Statements

Corporate Directory

DIRECTORS’ SHAREHOLDINGS*

Jens Montanana

Peter George 

Richard Last

Andrew Miller

Phil Richards

Ashley Stephenson

Carl Herberger

26 March 2024

31 December 2023

31 December 2022

Number

%

Number

%

Number

187,300,406

36.81

187,300,406

37.35

187,300,406

–

4,500,000

1,091,437

–

38,000

1,344,497

–

0.88

0.21

–

0.01

0.26

–

2,500,000

1,091,437

–

38,000

1,344,497

–

0.50

0.22

–

0.01

0.27

–

2,500,000

1,091,437

–

38,000

–

%

37.46

–

0.50

0.22

–

0.01

–

*Lionel Chmilewsky resigned during 2023 
and therefore is not included in this table. 
For reference he held nil shares in the 

Company during this period. 

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 32 and 33.

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, details of which 
are set out in note 16, 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. 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) the bank loan 
which is GBP denominated and 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 hedged such GBP 
debt and equity fund raises or GBP 
denominated expenses in the past as 
US denominated funds received by the 
Group’s UK subsidiary have been used 
to fund the Group’s US subsidiary to the 
extent such funding has been required, 
with the GBP funding requirements 
satisfied from the GBP denominated 
funds generated from GBP debt and 
equity fund raises. 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 2023

41

DIRECTORS’ REPORT CONTINUED

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 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 $1.8 million (2022: $1.7 million) was made 
during the year. Amortisation of $1.5 million 
(2022: $1.7 million) and costs not capitalised 
of $1.8 million (2022: £1.7 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; and

 • 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.

During the year, and in line with good 
governance practice, the ARCC led a 
competitive audit tender process for 
the 2023 Group audit. As a result of this, 
incumbent auditors BDO stood down 
following the completion of the 2022 year-
end audit and MHA, the UK independent 
member firm of Baker Tilly International, 
were appointed on 20 June 2023.

APPOINTMENT OF CEO POST 
YEAR END
Carl Herberger was appointed CEO of the 
Group, effective 1 January 2024. 

By order of the Board

Phil Richards
COMPANY SECRETARY

26 March 2024

42

Corero Network Security plc  Annual Report and Accounts 2023

 
Overview

Strategic Report

GOVERNANCE

Financial Statements

Corporate Directory

STATEMENT OF DIRECTORS’ RESPONSIBILITIES

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 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: 

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 on-going integrity of the financial 
statements contained therein.

 • 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; and

 • prepare the financial statements on 
the going concern basis unless it is 
inappropriate to presume that the Group 
will continue in business.

Corero Network Security plc  Annual Report and Accounts 2023

43

 • Evaluating the Directors’ assessment 
of the group’s ability to continue as a 
going concern, including an examination 
of cash flow forecasts, challenging the 
underlying data and key assumptions in 
those forecasts, being the level of sales, 
operating expenses and planned funding 
for software development, used to make 
the assessment and comparing these to 
historical performance and post period-
end information.

 • Examining management’s budgets and 
forecasts and their basis of preparation, 
including review and assessment of the 
model’s appropriateness, mechanical 
accuracy and sensitivity analysis on  
key cash changes from movements  
in key assumptions.

 • 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.

 • Consideration of post-balance sheet 

events which may impact going concern.

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.

INDEPENDENT AUDITOR’S REPORT

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 page 45 that sets out the key 
audit matters and how our audit addressed 
these 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 Parent 
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 period 
ended 31 December 2023. 

The financial statements that we have 
audited comprise:

 • 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 material 
accounting policies

 • the Company Statement  

of Financial Position

 • the Company Statement of Changes  

in Equity and

 • Notes to the Company financial 
statements, including material 
accounting policies.

The financial reporting framework that has 
been applied in the preparation of the 
Group 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 2023 and of the Group’s 
loss for the year then ended;

 • the Group financial statements have 

been properly prepared in accordance 
with UK adopted International 
Accounting Standards; 

 • the Parent Company financial statements 
have been properly prepared in accordance 
with United Kingdom Generally Accepted 
Accounting Practice; and

 • the financial statements 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’s 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. 

CONCLUSIONS RELATING  
TO GOING CONCERN 
In auditing the financial statements, we have 
concluded that the Directors’ use of the 
going 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.

44

Corero Network Security plc  Annual Report and Accounts 2023

Overview

Strategic Report

GOVERNANCE

Financial Statements

Corporate Directory

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

Group

2023

$400k

parent Company

$300k

2022

$400k

$245k

key audit matters 

• Revenue recognition

• Capitalisation of development costs

1.8% of revenue (2022: 2% of revenue).

1% of net assets capped at 75% of Group materiality (2022: 0.5% of net assets capped 
at 61% of Group materiality).

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. 

key audit matter

Description

How the scope of our audit responded to the key audit matter

Revenue recognition

The Group generates 
revenue through the sale 
of hardware, licences and 
related maintenance and 
support for associated 
software.

We considered there 
to be a significant 
audit risk associated 
with identifying the 
recognition and 
measurement of 
multiple revenue 
streams in accordance 
with IFRS 15. Due to 
the material impact of 
these transactions we 
considered this a 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 international accounting 

standards;

•  We obtained an understanding of the process, systems, and controls in place 

surrounding revenue recognition;

•  We tested the design and implementation of controls in respect of revenue 

recognition;

•  We substantively tested revenue recognised in the period, and corroborated 

revenue recognised with supporting evidence;

•  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; 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, we are satisfied that the group’s revenue recognition 
accounting policy is in line with the requirements of IFRS 15, and that revenue has 
been recognised in accordance with the group’s revenue recognition policy.

Corero Network Security plc  Annual Report and Accounts 2023

45

INDEPENDENT AUDITOR’S REPORT CONTINUED

key audit matter

Description

How the scope of our audit responded to the key audit matter

Capitalisation of 
development costs

The Group undertakes 
significant amounts 
of research and 
development which is 
capitalised as intangible 
assets. Judgement is 
required in distinguishing 
between research 
and development 
and in determining if 
development costs meet 
the recognition criteria of 
IAS 38. Due to required 
judgment and material 
nature of these costs we 
determined this to be a 
key audit matter. 

Our audit work included, but was not restricted to the following: 

•  We held discussions and met with Senior management personnel in Engineering, 
Product development and Finance to understand the key projects/releases during 
the year, the systems, processes and controls around the recording of capitalised 
development costs and the key areas of judgement;

•  We recorded our assessment of controls and tested the design and 

implementation of those controls;

•  We assessed management’s accounting policy in respect of capitalised 

development costs and ensured it aligns with IAS 38;

•  We substantively tested the capitalised development expenditure to ensure the 

definition and recognition criteria 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;

•  Evaluated the reasonableness of the useful lives of intangible assets; and

•  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, we are satisfied that the group’s accounting policy in 
respect of capitalised development costs is in line with the requirements of IAS 38 
and that costs have been capitalised in accordance with the policy. 

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. 

Materiality in respect of the Group was set at $400,000 (2022: $400,000) which was determined on the basis of 1.75% of the Group’s forecast 
revenues at the planning stage of the audit, the percentage based on final revenues was 1.8%. 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. 

Materiality in respect of the Parent Company was set at $300,000 (2022: $245,000), determined on the basis of 1% of the Company’s 
net assets capped at 75% of the Group materiality (2022: 0.5% of the Company’s net assets, capped at 61% of the Group materiality). 
Net 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 to 75% of Group materiality (2022: 61%) to mitigate the 
aggregated risk of material error on consolidation.

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. 

Performance materiality for the Group was set at $280,000 (2022: $300,000) and at $210,000 (2022: $184,000) for the Parent Company which 
represents 70% (2022: 75%) of the above materiality levels.

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. 

We agreed to report any corrected or uncorrected adjustments exceeding $20,000 (2022: $20,000) and $15,000 in respect of the Group and 
Parent Company respectively to the Audit Committee as well as differences below this threshold that in our view warranted reporting on 
qualitative grounds. 

46

Corero Network Security plc  Annual Report and Accounts 2023

Overview

Strategic Report

GOVERNANCE

Financial Statements

Corporate Directory

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.

Full scope audits – Audits of the complete 
financial information of Corero Network 
Security Plc, Corero Network Security (UK) 
Ltd and Corero Network Security Inc were 
undertaken, these entities were selected 
based upon their size or risk characteristics.

Specified procedures – The final reporting 
component, Corero Group Services Ltd, 
was not considered to be a significant 
component of the Group and thus specified 
procedures on all balances in excess of 
Group materiality were undertaken.

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 period 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 by 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 2023

47

INDEPENDENT AUDITOR’S REPORT CONTINUED

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 and 
the inappropriate capitalisation of 
development costs.

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 audit committee meetings; 

 • audit procedures performed by the 

 • 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. 

engagement team in connection with the 
risks identified included:

Andrew Gandell FCA 
(SENIOR STATUTORY AUDITOR) 

for and on behalf of MHA, Statutory Auditor 

London, United Kingdom 

26 March 2024

MHA is the trading name of MacIntyre Hudson LLP, 
a limited liability partnership in England and Wales 
(registered number OC312313)

 – 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 

 – performed substantive procedures 
on the recognition and existence of 
revenues and the capitalisation of 
development costs in the period.

48

Corero Network Security plc  Annual Report and Accounts 2023

Overview

Strategic Report

Governance

FINANCIAL STATEMENTS

Corporate Directory

CONSOLIDATED INCOME STATEMENT
FOR THE YEAR ENDED 31 DECEMBER 2023

Continuing operations

Revenue

Cost of sales

Gross profit

Operating expenses

Consisting of: 

Note

4

year ended
31 December 
2023
$’000

year ended
31 December 
2022
$’000

22,349

(2,164)

20,185

20,121

(2,576)

17,545

(20,201)

(16,869)

Operating expenses before depreciation and amortisation

Depreciation and amortisation of intangible assets

(18,428)

(14,926)

10,11,12

(1,773)

(1,943)

Operating (loss)/profit

Finance income

Finance costs

(loss)/profit before taxation

Taxation (charge)/credit

(loss)/profit after taxation

(loss)/profit after taxation attributable to equity owners of the parent

Basic and diluted earnings/(loss) per share

Basic earnings per share

Diluted earnings per share

EBITDA

Adjusted EBITDA – for unrealised foreign exchange differences on intercompany loan

The notes on pages 54 to 82 form part of these financial statements.

5

5

6

7

7

8

8

(16)

44

(181)

(153)

(17)

(170)

(170)

676

7

(279)

404

150

554

554

Cents

Cents

0.0

0.0

1,757

2,186

0.1

0.1

2,619

1,658

Corero Network Security plc  Annual Report and Accounts 2023

49

CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME
FOR THE YEAR ENDED 31 DECEMBER 2023

(loss)/profit for the year

Other comprehensive income/(expense):

Items reclassified subsequently to profit or loss upon derecognition:

Foreign exchange differences

Other comprehensive income/(expense) for the year net of taxation attributable  
to the equity owners of the parent

total comprehensive income/(expense) for the year attributable to the equity  
owners of the parent

year ended
31 December 
2023
$’000

year ended
31 December 
2022
$’000

(170)

554

628

458

458

(1,087)

(1,087)

(533)

50

Corero Network Security plc  Annual Report and Accounts 2023

Overview

Strategic Report

Governance

FINANCIAL STATEMENTS

Corporate Directory

CONSOLIDATED STATEMENT OF FINANCIAL POSITION
AS AT 31 DECEMBER 2023

Assets

Non-current assets

Goodwill

Intangible assets

Property, plant and equipment – owned assets

Leased right of use assets

Current assets

Inventories

Trade and other receivables

Cash and cash equivalents

total assets

liabilities

Current liabilities

Trade and other payables

Lease liabilities

Deferred income

Borrowings

Net current assets

Non-current liabilities

Trade and other payables

Lease liabilities

Deferred income

Borrowings

Net assets

Capital and reserves attributable to the equity owners of the parent

Share capital

Share premium

Capital redemption reserve

Share options reserve

Foreign exchange translation reserve

Accumulated profit and loss reserve

total shareholders’ equity

As at 
31 December 
2023
$’000

As at 
31 December 
2022
$’000

Note

9

10

11

12

13

14

15

12

18

16

15

12

18

16

20

21

8,991

4,820

633

309

8,991

4,502

604

62

14,753

14,159

96

8,427

5,160

13,683

28,436

(3,902)

(164)

(4,992)

 –

(9,058)

4,625

–

 (151)

(2,491)

–

(2,642)

16,737

6,999

82,430

7,051

2,007

(1,965)

(79,785)

16,737

164

6,865

5,646

12,675

26,834

(3,956)

(78)

(3,323)

(971)

(8,328)

2,776

(100)

–

(2,285)

(237)

(2,622)

15,884

6,980

82,284

7,051

1,777

(2,593)

(79,615)

15,884

These financial statements were approved and authorised for issue by the Board of Directors on 26 March 2024 and signed on their behalf.

Carl Herberger
DIRECTOR

The notes on pages 54 to 82 form part of these financial statements.

Corero Network Security plc  Annual Report and Accounts 2023

51

CONSOLIDATED STATEMENT OF CASH FLOWS
FOR THE YEAR ENDED 31 DECEMBER 2023

Operating activities

(Loss)/Profit before taxation for the year

Adjustments for movements:

Amortisation of acquired intangible assets

Amortisation of capitalised development expenditure

Depreciation – owned assets

Depreciation – leased assets

Assets redesignated from PPE to Cost of Sales

Finance income

Finance expense

Finance lease interest costs

Share based payments expense

year ended 
31 December 
2023
$’000

year ended 
31 December 
2022
$’000

(153)

404

2

1,504

423

116

30

(44)

164

17

233

2

1,732

497

82

–

(7)

268

11

386

Cash generated from operating activities before movement in working capital

2,292

3,375

Movement in working capital:

Decrease/(increase) in inventories

(Increase)/decrease in trade and other receivables

Increase/(decrease) in trade and other payables

Net movement in working capital

Cash generated from/(used in) operating activities

Taxation (paid) / received

Net cash generated from/(used in) operating activities

Cash flows from investing activities

Investment in development expenditure

Purchase of property, plant and equipment

Finance income

Net cash used in investing activities

Cash flows from financing activities

Net proceeds from issue of ordinary share capital

Lease liability payments

Finance expense

Repayments of borrowings

Net cash (used in)/generated from financing activities

(Decrease)/increase in cash and cash equivalents

Effects of exchange rates on cash and cash equivalents

Cash and cash equivalents at 1 January

Cash and cash equivalents at 31 December

The notes on pages 54 to 82 form part of these financial statements.

52

Corero Network Security plc  Annual Report and Accounts 2023

68

(1,248)

2,035

855

3,147

(17)

3,130

(1,824)

(812)

44

(26)

(3,867)

(1,361)

(5,254)

(1,879)

150

(1,729)

(1,704)

(420)

7

(2,592)

(2,117)

165

(143)

(78)

(1,317)

(1,373)

(835)

349

5,646

5,160

228

(104)

(158)

(1,364)

(1,398)

(5,244)

(311)

11,201

5,646

Overview

Strategic Report

Governance

FINANCIAL STATEMENTS

Corporate Directory

CONSOLIDATED STATEMENT OF CHANGES IN EQUITY
FOR THE YEAR ENDED 31 DECEMBER 2023

Share 
capital
$’000

6,914

Share 
premium 
account
$’000

Capital 
redemption 
reserve
$’000

82,122

7,051

Share 
options 
reserve
$’000

1,490

Foreign 
exchange 
translation 
reserve
$’000

Accumulated 
profit and 
loss reserve
$’000

total 
attributable 
to equity 
owners of  
the parent
$’000

(1,506)

(80,268)

15,803

1 January 2022

Profit for the year

Other comprehensive income

total comprehensive expense for the year

Contributions by and distributions to owners

Issue of share capital – exercise of options

Fully exercised share options

Share based payments

total contributions by and distributions 
to owners

–

–

–

66

–

–

66

–

–

–

162

–

–

162

–

–

–

–

–

–

–

31 December 2022 and 1 January 2023

6,980

82,284

7,051

(Loss)/Profit for the year

Other comprehensive income

total comprehensive income for the year

Contributions by and distributions to owners

Issue of share capital – exercise of options

Fully exercised share options

Share based payments

total contributions by and distributions 
to owners

–

–

–

19

–

–

19

–

–

–

146

–

–

146

–

–

–

–

–

–

–

31 December 2023

6,999

82,430

7,051

The share capital comprises the nominal values of all shares issued.

–

–

–

–

(99)

386

287

1,777

–

–

–

–

(3) 

233

230

2,007

–

(1,087)

(1,087)

–

–

–

–

554

–

554

–

99

–

99

554

(1,087)

(533)

228

–

386

614

(2,593)

(79,615)

15,884

–

628

628

–

–

–

–

(170)

–

(170)

–

–

–

–

(170)

628

458

165

(3)

233

395

(1,965)

(79,785)

16,737

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 the cost to the Group of share options. 

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 54 to 82 form part of these financial statements.

Corero Network Security plc  Annual Report and Accounts 2023

53

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 sterling (‘GBP’) 
exchange rates used for the conversion 
of the Consolidated Monthly Income 
Statements for the year ended 31 December 
2023 was between 1.21-1.29 (2022: between 
1.20-1.36). The closing $-GBP exchange 
rate used for the conversion of the Group’s 
assets and liabilities at 31 December 2023 
was 1.27 (2022: 1.21). 

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 2025 (‘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. 

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 2023. 

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.

These actions include deferral of capital 
expenditure, reduction in marketing and 
other variable expenditure alongside  
a hiring freeze. 

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.

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 Palestine, 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. 

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 

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 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.

54

Corero Network Security plc  Annual Report and Accounts 2023

Overview

Strategic Report

Governance

FINANCIAL STATEMENTS

Corporate Directory

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 free on board (‘FOB’) 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 FOB shipment to the customer 
and for software at the point of electronic transfer to the customer.

Revenue recognised on transfer of control of appliance and 
software products (point in time)

Appliance, perpetual software licenses and software subscription licenses

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.

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 license costs.

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.

Corero Network Security plc  Annual Report and Accounts 2023

55

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. 

2. SIGNIFICANT 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.

56

Corero Network Security plc  Annual Report and Accounts 2023

NOTES TO THE FINANCIAL STATEMENTS CONTINUEDOverview

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FINANCIAL STATEMENTS

Corporate Directory

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 CGU’s or groups of CGU’s 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 CGU’s 
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:

 • 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.

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 

 • amounts expected to be payable under 

deductible (permanent differences).

any residual value guarantee; 

Corero Network Security plc  Annual Report and Accounts 2023

57

2. SIGNIFICANT ACCOUNTING  
POLICIES CONTINUED
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. 

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. 

An impairment provision is recorded against 
the intercompany loan note instrument 
between the Company and Corero Network 
Security, Inc. based on calculating the 
risk adjusted carrying value of the loan 
to take account of the credit loss which 
is expected to arise over the period until 
the cash is realised. The amount of the 
provision is based on whether there has 
been a significant increase in credit risk 
since the initial recognition of the loan. 
In situations where the credit risk has 
not increased significantly and the loan 
amount is expected to be recovered, the 
expected credit loss is limited to the effect 
of discounting the intercompany loan over 
the period until repayment is realised at the 
effective interest rate. 

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.

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.

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.

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.

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.

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:

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.

58

Corero Network Security plc  Annual Report and Accounts 2023

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 2023:

 • IFRS 17 Insurance Contracts;

 • Definition of Accounting Estimates – 

amendments to IAS 8;

 • International Tax Reform – Pillar Tow 

Model Rules – amendments to IAS 12;

 • Deferred Tax related to Assets and 
Liabilities arising from a Single 
Transaction – amendments to IAS 12; and

 • Disclosure of Accounting Policies – 

Amendments to IAS 1 and IFRS Practice 
Statement 2.

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.

NOTES TO THE FINANCIAL STATEMENTS CONTINUEDOverview

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FINANCIAL STATEMENTS

Corporate Directory

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.

Impairment of investments 
(applies to the Company financial 
statements only)
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. 

Standalone Selling Price – 
Revenue recognition
On a quarterly 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:

2023
$’000

2022
$’000

United States

15,855

13,527

United Kingdom

2,122

2,307

Others

total

4,372

4,286

22,349

20,121

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 2023, no individual customer accounted 
for over 10% of revenue. The Group’s largest 
customer accounted for 9.3% of 2023 
revenue (2022: largest customer accounted 
for 13% of revenue).

The revenue is analysed as follows for each 
revenue category:

Software license and 
appliance revenue

DDoS Protection as-a-
Service revenue

Maintenance and 
support services revenue

total

2023
$’000

2022
$’000

8,186

8,107

5,599

4,854

8,564

7,160

22,349

20,121

The revenue is analysed by timing of delivery 
of goods or services as:

2023
$’000

2022
$’000

Point in time delivery

8,186

8,107

Over time

total

14,163

12,014

22,349

20,121

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 2023

59

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:

United States

United Kingdom

total

Contract balances

2023
$’000

9,698

5,055

2022
$’000

9,428

4,731

14,753

14,159

Contract assets

Contract liabilities

At 1 January

Transfers in the period to/from trade receivables from/to contract assets

Amounts included in contract liabilities that were recognised as revenue 
in the period from the opening balance

Amounts included in contract liabilities that were recognised as revenue 
from amounts invoiced in the period

Amounts invoiced in the period and not recognised as revenue in the period

2023
$’000

2,793

(10)

–

–

–

2022
$’000

1,276

1,517

–

–

–

At 31 December

2,783

2,793

5. (LOSS)/PROFIT FOR THE YEAR
The following items have been included in arriving at the Group’s (loss)/profit for the year before taxation:

Unrealised (gain)/loss on intercompany loan

Finance expense – Clydesdale loan interest and fees

Finance expense – lease liability

Research and development expenditure not capitalised

 Inventory recognised as an expense in cost of sales

Lease expenses for short term leases

Amortisation of acquired intangible assets (note 10)

Amortisation of capitalised development expenditure (note 10)

Depreciation of property, plant and equipment (note 11)

DDoS Protection as-a-Service asset depreciation (note 11)

Auditor’s remuneration

Remuneration received by the Company’s auditor for the audit of these Financial Statements

The audit of the financial statements of other Group companies

Fees payable to the Company’s auditor for taxation compliance services

Fees payable to the Company’s auditor for taxation advisory services

60

Corero Network Security plc  Annual Report and Accounts 2023

2023
$’000

5,608

–

2022
$’000

6,824

–

(4,085)

(4,629)

(9,892)

(5,880)

15,852

7,483

9,293

5,608

2023
$’000

429

164

17

1,981

1,354

58

2

1,504

267

272

2023
$’000

127

47

–

–

174

2022
$’000

(961)

268

11

1,743

1,654

64

2

1,732

209

370

2022
$’000

137

44

33

46

260

NOTES TO THE FINANCIAL STATEMENTS CONTINUEDOverview

Strategic Report

Governance

FINANCIAL STATEMENTS

Corporate Directory

6. TAX ON (LOSS)/PROFIT ON ORDINARY ACTIVITIES

Current tax (charge) / credit

total

2023
$’000

(17)

(17)

2022
$’000

150

150

The tax assessed on the profit on ordinary activities for the year differs from the weighted average UK corporate rate of tax of 25% per the 
2023/2024 2023 governmental budgets (2022: 19.0%). The differences are reconciled below:

Total tax reconciliation

(Loss)/profit before taxation

Theoretical tax charge at UK Corporation tax rate 23.5% (2022: 19.0%)

Effect of:

– expenditure that is not tax deductible

– accelerated capital allowances 

– other timing differences

– losses utilised

taxation charge

R&D tax credits

2023
$’000

(153)

(36)

103

–

(50)

–

17

–

2022
$’000

404

77

79

(28)

6

(134)

–

150

In the year ending 31 December 2023, treatment of R&D tax credits has been updated to reflect these amounts in Operating expenses. In 
the previous financial year, R&D tax credits were recognised within the current tax charge/credit. The Directors believe this better aligns 
with the requirements of the financial standards. The amounts are not material. 

Factors affecting future tax charges
As at 31 December 2023, the Group’s cumulative fixed asset timing differences were $131,000 (2022: $12,000) and no deferred tax asset has 
been recognised in respect of these items.

Tax losses at 31 December 2023 amounted to $88.3 million (2022: $89.7 million). This comprised UK tax losses of $14.6 million and US tax 
losses of $73.7 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 $12.8 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 $61.2 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 $3.65 million (2022: $3.4 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 $15.5 million (2022: $16.0 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 2023

61

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.

Basic earnings per share

From loss/profit for the year

Diluted earnings per share

From loss/profit for the year

Basic earnings/(loss) per share

From (loss)/profit for the year

Diluted earnings/(loss) per share

Basic earnings per share

Dilutive effect of share options

Diluted earnings per share

2023
$’000

2022
$’000

0.0

0.0

2022

weighted 
average 
number of 
1p shares 
thousand

495,900

495,900

15,248

511,148

0.1

0.1

 profit 
per share 
Cents

0.1

0.1

–

0.1

2023

weighted 
average 
number of 
1p shares 
thousand

loss
$’000

 loss 
per share 
Cents

(170)

500,221

0.0

(170)

500,221

–

–

(170)

500,221

0.0

–

0.0

profit
$’000

554

554

–

554

8. KEY PERFORMANCE MEASURES 
EBITDA and Adjusted 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 and Adjusted EBITDA for the periods presented:

(loss)/profit before taxation

Adjustments for:

Finance income

Finance expense

Finance lease interest costs

Depreciation – owned assets

Depreciation – right of use assets

Amortisation of acquired intangible assets

Amortisation of capitalised development expenditure

eBitDA

Unrealised foreign exchange differences on intercompany loan

Adjusted eBitDA – for unrealised foreign exchange differences on intercompany loan 

62

Corero Network Security plc  Annual Report and Accounts 2023

year ended 
31 December 
2023
$’000

year ended 
31 December 
2022
$’000

(153)

404

(44)

164

17

151

116

2

1,504

1,757

429

2,186

(7)

268

11

127

82

2

1,732

2,619

(961)

1,658

NOTES TO THE FINANCIAL STATEMENTS CONTINUEDOverview

Strategic Report

Governance

FINANCIAL STATEMENTS

Corporate Directory

9. GOODWILL
Group

Cost

At 1 January 2022

At 31 December 2022

At 31 December 2023

impairment

At 1 January 2022

At 31 December 2022

At 31 December 2023

Carrying amount

At 1 January 2022

At 31 December 2022

At 31 December 2023

$’000

17,983

17,983

17,983

(8,992)

(8,992)

(8,992)

8,991

8,991

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 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 10 year period (2022: 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:

Forecast cash flow period

Extrapolated cash flow period

2023

2022

Years 1-2

Years 1-2

Years 3-10

Years 3-10

Cumulative annual growth rate (‘CAGR’) for revenue used for the forecast/extrapolated periods

9.5%

10.9%

Growth rates (‘CAGR’) used for the forecast/extrapolated periods:

Year 1–2 (forecast period)

Years 3–5 (extrapolated period)

Years 6–10 (extrapolated period)

Revenue growth rate used beyond the extrapolated period

Discount rate

9.0%

15.0%

6.5%

2.5%

18.5%

16.3%

15.0%

6.5%

2.5%

17.3%

The pre-tax cash flows for the forecast period are derived from the most recent financial budget for the year ending 31 December 2024 
(‘2024 Budget’) and the plan for the year ending 31 December 2025 (‘2025 Plan’) approved by the Board, with a sensitivity reflecting 
prior year experience and progress made in 2023 (10% applied to the 2024 Budget revenue and 15% to the 2025 Plan revenue). The 
extrapolation for the period 2026 to 2033 is based on management estimates (with the key assumptions set out below).

The future pre-tax cash flows are discounted by a WACC of 18.5% (2022: 17.3%).

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 2026 to 2033 (ii) and the discount rate.

The cash flow forecasts assume a CAGR revenue growth of 15% in the period 2025 to 2029 (15.5% for the period 2024 to 2028) and 6.5% for 
the period 2029 to 2033 (a ‘CAGR’ of 9.5% for 10-year forecast period; 2023: 10%). The cashflow forecasts reflect a sensitivity of 10% applied 
to the CNS 2024 Budget revenues and a sensitivity of 15% applied to the 2025 Plan revenues (and a sensitivity of 5% to 2024 operating 
costs and capital expenditure, and a sensitivity of 7.5% to 2025 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 2021 and 2023, the strategy for 2024 which is focused on scaling the business for profitability through leveraging the Group’s 
expanded routes to market and the on-going investment in sales and marketing. This strategy is expected to deliver further increases in 
revenue in the forecast period. 

Corero Network Security plc  Annual Report and Accounts 2023

63

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 $9.1 billion by 2030 (Source: Verified Market Research DDoS Protection and Mitigation Market Size 
and Forecast, 2024) – a CAGR of 14% during this period.

The above market growth rates used in the future cash flow assumptions reflect that CNS is in the relatively early stages of the commercial 
exploitation of its intellectual property. In addition, the business’s strategy, aside from greater sales growth penetration, is to continue to 
develop its product and solution offerings to remain 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 10-year extrapolation period of 2.5% 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 4.0% (based on 10-year US government bonds) (2022: 3.88%), comparable company betas, an equity risk premium of 6.2% 
(2022: 6.2%), and small company risk premium of 4.5% (2022: 4.5%). The WACC has been assessed based on that fact that the Company 
had no debt at 31 December 2023 (debt at 31 December 2022: $1.2 million). The WACC used in the valuation reflects current market 
assessments of the time value of money and the risks specific to CNS.

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 18.5% to 53.0%, 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 10% applied to the CNS 2024 Budget and 15% to the 2025 Plan revenues (and sensitivity of 
5% to CNS 2024 Budget operating costs and capital expenditure, and 7.5% to the 2025 Plan operating costs and capital expenditure) was 
increased to 45% for the CNS 2024 Budget and 35% to the 2025 Plan revenues (and sensitivity of 22.5% to CNS 2024 Budget operating 
costs and capital expenditure, and 17.5% to the 2025 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.

10. INTANGIBLE ASSETS 

Cost

At 1 January 2022

Additions

At 31 December 2022 and at 1 January 2023

Additions

At 31 December 2023

Amortisation

At 1 January 2022

Charge for year

At 31 December 2022 and at 1 January 2023

Charge for year

At 31 December 2023

Net book value

At 31 December 2023

At 31 December 2022

At 1 January 2022

64

Corero Network Security plc  Annual Report and Accounts 2023

Capitalised 
development 
expenditure 
$’000

Computer 
software
$’000

Customer 
relationships 
$’000

24,064

1,704

25,768

1,824

27,592

(19,536)

(1,732)

(21,268)

(1,504)

(22,772)

4,820

4,500

4,528

6,017

–

6,017

–

6,017

(6,013)

(2)

(6,015)

(2)

(6,017)

–

2

4

total
$’000

30,278

1,704

31,982

1,824

33,806

197

–

197

–

197

(197)

(25,746)

–

(1,734)

(197)

(27,480)

–

(1,506)

(197)

(28,986)

–

–

–

4,820

4,502

4,532

NOTES TO THE FINANCIAL STATEMENTS CONTINUEDOverview

Strategic Report

Governance

FINANCIAL STATEMENTS

Corporate Directory

11. PROPERTY, PLANT AND EQUIPMENT
Group

Cost

1 January 2022

Additions

Transfers

Disposals

Foreign currency translation

At 31 December 2022  
and 1 January 2023

Additions

Transfers

Disposals

Foreign currency translation

At 31 December 2023

Depreciation

At 1 January 2022

Charge for year

Transfers

Disposals

Foreign currency translation

At 31 December 2022  
and at 1 January 2023

Charge for year

Transfers

Disposals

Foreign currency translation

At 31 December 2023

Net book value

At 31 December 2023

At 31 December 2022

At 1 January 2022

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

997

114

–

–

(20)

1,091

131

–

(403)

8

827

(939)

(65)

–

–

20

(984)

(66)

–

403

(6)

(653)

174

107

58

186

137

(57)

(69)

(10)

187

136

(8)

(105)

22

232

(84)

(38)

9

18

(1)

(96)

(62)

3

75

–

1,648

104

106

344

3,385

169

57

(64)

(62)

1,748

182

8

–

37

–

–

–

(1)

–

–

–

(2)

103

104

–

–

–

–

–

–

–

1

–

–

–

–

344

363

–

–

–

1,975

103

105

707

(1,062)

(370)

(9)

31

41

(1,369)

(272)

(3)

–

(28)

(87)

(7)

–

–

2

(92)

(7)

–

–

–

(73)

(17)

–

–

2

(88)

(16)

–

–

(1)

(199)

(82)

–

–

(1)

(282)

(116)

–

–

–

420

–

(133)

(95)

3,577

812

–

(508)

68

3,949

(2,444)

(579)

–

49

63

(2,911)

(539)

–

478

(35)

(80)

(1,672)

(99)

(105)

(398)

(3,007)

152

91

102

303

379

586

4

11

17

–

16

33

309

62

145

942

666

941

DDoS Protection as-a-Service assets’ depreciation is charged to cost of sales.

Corero Network Security plc  Annual Report and Accounts 2023

65

12. LEASES
Right of use assets

Right of use asset

Accumulated depreciation

total carrying amount of Right of use assets

2023
$’000

707

(398)

309

2022
$’000

344

(282)

62

Reconciliation of the carrying amount of lease assets at the beginning and end of the current and previous financial years are set out below:

Opening carrying amount

Additions

Depreciation

Closing carrying amount

2023
$’000

62

363

(116)

309

2022
$’000

145

–

(83)

62

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. 

During the year the Group exercised its option to extend the US office in Marlborough, Massachusetts. The original lease expired 
1 September 2023, with the exercised option continuing the lease agreement for a further 42 months ending 31 March 2025. This 
option extension was recognised as a Right of Use Asset addition of $145,000 in the year as it has not been previously recognised on 
commencement of the lease. Carrying amount of the Right of Use Asset at 31 December 2023 is $122,000. 

Also during the 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 2023  
is $187,000. 

Lease liabilities

At 1 January 

Additions

Payments

Interest cost

At 31 December

Within 1 year

Between 2 and 5 years

At 31 December

2023
$’000

78

363

(143)

17

315

2023
$’000

164

151

315

2022
$’000

172

–

(105)

11

78

2022
$’000

78

–

78

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.

66

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NOTES TO THE FINANCIAL STATEMENTS CONTINUEDOverview

Strategic Report

Governance

FINANCIAL STATEMENTS

Corporate Directory

13. INVENTORIES

Gross inventory

Less: provision for impairment

Net inventory

2023
$’000

160

(64)

96

2022
$’000

217

(53)

164

Net inventory comprises finished goods and raw materials. The value of inventory recognised as an expense in cost of sales was $1.4 million 
(2022: $1.7 million).

14. TRADE AND OTHER RECEIVABLES

Trade receivables

Contract assets (note 4)

Less: provision for impairment of trade receivables

Net trade receivables

Other debtors 

Prepayments

Deferred commissions

2023
$’000

2,306

2,783

(25)

5,064

179

1,827

1,357

8,427

2022
$’000

1,092

2,793

(25)

3,860

160

1,735

1,110

6,865

None of the Company’s trade and other receivables are secured by collateral or credit enhancements (2022: None).

The Group applies the simplified approach to measuring expected credit losses using a lifetime expected credit loss 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. 

The maturity profile of trade and other receivables is set out in the table below:

In one year or less, or on demand

In more than one year, but not more than five years

2023
$’000

6,914

1,513

8,427

2022
$’000

5,294

1,571

6,865

At 31 December 2023, presentation of Trade and other receivables in the Balance sheet has been changed in accordance with IAS 1.  
Trade and other receivables due to mature in over one year were previous presented as non current assets in the Balance sheet but are  
now disclosed within this note in accordance with IAS 1. The nature of the assets have not changed.

The analysis of trade and other receivables by foreign currency is set out in the table below:

US dollars

UK pound

2023
$’000

6,200

2,227

8,427

2022
$’000

5,727

1,138

6,865

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.

Corero Network Security plc  Annual Report and Accounts 2023

67

15. TRADE AND OTHER PAYABLES 

Trade payables 

Other payables 

Accruals

2023
$’000

1,399

619

1,884

3,902

2022
$’000

1,619

159

2,278

4,056

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. 74% (2022: 74%) 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:

US dollars

UK pound

2023
$’000

2,123

1,779

3,902

2022
$’000

2,161

1,895

4,056

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
The Group borrowings:

Bank loans

2023
$’000

–

2022
$’000

1,208

On 27 June 2023, the Group repaid all outstanding external borrowings from the £2.0 million term loan facility. There is no interest payable 
at 31 December 2023, and no contractual future cash flows in relation to the term loan facility.

At 31 December 2023, the Group continues to have access to an undrawn £1.0 million Revolving Credit Facility (‘RCF’) which was due to 
expire in March 2024. At 31 December 2023, the remaining contractual future cash flows relating to the RCF amount to $88,982 payable in 
March 2024 in relation to the close out of the facility. The RCF was closed early in February 2024 with all fees due paid at that time. 

The bank loan was secured by debentures over the business assets of all Group companies and by Group company guarantees including 
a guarantee from the Company. The bank loan terms included typical covenants for such a loan, as well as revenue and cash consumption 
covenants, which were tested quarterly and monthly respectively. These covenants were met for each covenant reporting period in the 
reporting period ended 31 December 2023 and 31 December 2022.

68

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NOTES TO THE FINANCIAL STATEMENTS CONTINUEDOverview

Strategic Report

Governance

FINANCIAL STATEMENTS

Corporate Directory

17. FINANCIAL INSTRUMENTS

The Group’s financial instruments are categorised as shown below:

Financial assets

Trade and other receivables

Cash

Financial liabilities

Trade and other payables

Lease liabilities

Borrowings

Book Value
2023
$’000

Book Value
2022
$’000

5,243

5,160

10,403

4,020

5,646

9,666

Book Value
2023
$’000

Book Value
2022
$’000

3,902

315

–

4,217

4,134

78

1,208

5,420

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 28.

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.

18. CONTRACT LIABILITIES

Current 

More than one year but less than five years

2023
$’000

4,992

2,491

7,483

2022
$’000

3,323

2,285

5,608

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

Defined contribution pension costs 

2023
$’000

245

2022
$’000

192

Corero Network Security plc  Annual Report and Accounts 2023

69

20. SHARE CAPITAL
Authorised share capital
The authorised share capital comprises 745,821,970 (2022: 745,821,970) ordinary shares of 1 penny (‘p’) (1.4 cents (‘c’)) each.

Issued ordinary share capital

1 January 2022

494,852,304 ordinary shares of 1p each

Issued by way of option exercises

66,667 ordinary shares of 1p each (1.32c)

20,000 ordinary shares of 1p each (1.23c)

1,000,000 ordinary shares of 1p each (1.21c)

2,126,667 ordinary shares of 1p each (1.42c)

400,000 ordinary shares of 1p each (1.13c)

155,000 ordinary shares of 1p each (1.13c)

1,333,333 ordinary shares of 1p each (1.23c)

31 December 2022

499,953,971 ordinary shares of 1p each

230,000 ordinary shares of 1p each

1,344,497 ordinary shares of 1p each

31 December 2023

501,528,468 ordinary shares of 1p each

21. SHARE PREMIUM

1 January 2022

Issued by way of option exercises

66,667 ordinary shares of 4.25p each (5.61c)

20,000 ordinary shares of 15p each (18.45c)

1,000,000 ordinary shares of 15p each (18.15c)

2,126,667 ordinary shares of 15p each (21.3c)

400,000 ordinary shares of 4.25p each (4.80c)

155,000 ordinary shares of 4.25p each (4.80c)

1,333,333 ordinary shares of 4.25p each (5.23c)

31 December 2022

Issued by way of option exercises

230,000 ordinary shares of 4.25p each (5.37c)

Issued by way of new shares allotted to CEO

1,344,497 ordinary shares of 8p each (9.9c)

31 December 2023

$’000

6,914

–

–

12

30

5

2

17

6,980

3

16

6,999

$’000

82,122

1

1

18

45

19

8

70

82,284

13

133

82,430

Consideration received in excess of the nominal value is included in share premium, less registration, commission, and professional fees.

70

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NOTES TO THE FINANCIAL STATEMENTS CONTINUEDOverview

Strategic Report

Governance

FINANCIAL STATEMENTS

Corporate Directory

total 
2023
$’000

 12,694 

 1,355 

336

245 

total 
2022
$’000

11,087

1,229

386

192

14,630

12,894

2023
Number

2022
Number

25

43

8

76

Company 
National 
insurance 
Contributions
$’000

21

38

6

65

total
2023
$’000

571

266

41

737

36

38

116

1,805

22. EMPLOYEES AND DIRECTORS
Employee expenses, including Directors, during the period

Wages and salaries 

Social security costs 

Share based payments

Other pension costs

Average monthly numbers of employees (including Directors) employed

Sales and marketing

Technical, support and services 

Management, operations and administration

Directors, being the Key Management personnel

2023

Directors

Ashley Stephenson

Andrew Miller2

Jens Montanana

Lionel Chmilewsky

Peter George

Richard Last

Phil Richards1

Salary 
& fees 
$’000

369

234

41

587

36

35

63

1,013

Bonus
$’000

Benefits
$’000

pension
$’000

Subtotal
$’000

Options
$’000

186

–

–

–

–

–

31

217

6

–

–

3

–

–

3

12

–

–

–

–

–

–

4

4

561

234

41

590

36

35

101

1,598

–

–

–

–

–

–

–

–

10

32

–

147

–

3

15

207

1   Phil Richards was appointed to the Board effective 21 September 2023 and his remuneration has been pro rated accordingly

2  Andrew Miller held the position of interim COO for the period from 1 March to 31 August 2023 and interim CFO for the period 1 September 2022 to 31 December 2022

2022

Directors

Ashley Stephenson

Andrew Miller2

Jens Montanana

Lionel Chmilewsky

Peter George

Richard Last

Salary 
& fees 
$’000

346

140

40

365

36

34

961

Bonus
$’000

Benefits
$’000

pension
$’000

Subtotal
$’000

Options
$’000

161

–

–

167

–

–

328

23

1

–

11

–

–

35

–

–

–

53

–

–

53

530

141

40

596

36

34

1,377

–

–

–

–

–

–

–

Company 
National 
insurance 
Contributions
$’000

9

18

–

127

–

3

total
2022
$’000

539

159

40

723

36

37

157

1,534

Corero Network Security plc  Annual Report and Accounts 2023

71

22. EMPLOYEES AND DIRECTORS CONTINUED
Bonus payments of $267,000 were awarded to Directors in respect of the year to 31 December 2023 (2022: $328,000).

Lionel Chmilewsky had an employment agreement 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. Lionel Chmilewsky resigned as a Director of the 
Company on 28 February 2023.

Ashley Stephenson and Phil Richards 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. 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 table from date of appointment to the Board. 

Andrew Miller has a non-interest bearing Director’s Loan of $72,000 (2022: $72,000) which is repayable in August 2030. Andrew Miller was 
appointed Interim Chief Operating Officer on 1st March 2023 until 1 October 2023.

23. CONTINGENT LIABILITIES
Corero Network Security (UK) Limited was in December 2015 awarded a grant of £600,000 for a development project over three years from 
Scottish Enterprise. Any monies becoming repayable by Corero Network Security (UK) Limited under the grant terms for breaches of the grant 
conditions are guaranteed by the Company. These conditions which are typical for a grant of this nature, and which apply for a period of five 
years from the final grant payment date (being 14 March 2019), include maintaining minimum headcount in Scotland and no change of control.

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.

Share options granted at 31 December 2023 were as follows:

Option holders

Date granted

expiry date

enterprise Management incentive Scheme

exercise 
price – pence
(cents)

At  
1 January 
2023

Granted

exercised

Forfeit/
cancelled

At
31 December 
2023

Other Holders

April 2019

April 2029

8.4p (10c)

10,000

September 2019

September 2029

2.5p (3c)

5,000

April 2020

April 2030

4.2p (5c)

357,500

–

–

–

–

–

–

–

10,000

 (5,000)

–

 (10,000)

347,500

72

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NOTES TO THE FINANCIAL STATEMENTS CONTINUEDOverview

Strategic Report

Governance

FINANCIAL STATEMENTS

Corporate Directory

Option holders

Date granted

expiry date

exercise 
price – pence
(cents)

At  
1 January 
2023

Granted

exercised

Forfeit/
cancelled

At
31 December 
2023

 (230,000)

–

5,990,500

June 2020

June 2030

5.3p (7c) 6,220,500

September 2020

September 2030

7.8p (10c)

10,000

October 2020

October 2030

9.0p (12c)

12,500

January 2021

January 2031

13.0p (18c)

535,000

September 2022

September 2032

10.8p (12c)

410,000

–

–

–

–

–

April 2023

April 2033

6.8p (8c)

410,000

155,000

executive enterprise Management incentive Scheme

Andrew Lloyd

Phil Richards

April 2017

April 2023

April 2027

8p (10c)

2,083,333

–

April 2033

6.8p (8c)

September 2023

September 2033

7.1p (9c)

unapproved French Share Option Scheme

– 1,500,000

–

500,000

Lionel Chmilewsky

June 2020

June 2030

5.3p (7c)

7,000,000

January 2021

January 2031

13.0p (18c)

500,000

unapproved Share Option Scheme

Jens Montanana

Richard Last

Andrew Lloyd

April 2017

May 2018

April 2027

8p (10c)

994,000

May 2028

13.6p (18c)

425,000

October 2018

October 2028

11.0p (14c)

400,000

January 2021

January 2031

13.0p (18c)

350,000

April 2017

June 2017

April 2027

8p (10c)

450,000

June 2027

13.6 (18c)

180,000

October 2018

October 2028

11.0p (14c)

200,000

January 2021

January 2031

13.0p (18c)

350,000

April 2017

June 2017

April 2027

8p (10c)

580,001

June 2027

13.6 (18c)

200,000

Ashley Stephenson

June 2020

June 2030

5.3p (7c)

7,919,000

January 2021

January 2031

13.0p (18c)

350,000

Andrew Miller

June 2020

June 2030

5.3p (7c)

5,775,000

Peter George

January 2019

January 2029

11.3p (15c)

750,000

January 2021

January 2031

13.0p (18c)

350,000

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

Carl Herberger

November 2023

November 2033

9.0p (11c)

– 11,533,492

unapproved Share Option Scheme continued

Other holders

April 2013

May 2014

April 2023

25p (38c)

100,000

May 2024

25p (42c)

670,666

September 2016

September 2026

22.5p (33c)

5,000

October 2018

October 2028

11.0p (14c)

50,000

September 2019

September 2029

2.5p (3c)

100,000

April 2020

April 2020

June 2020

April 2030

4.2p (5c)

405,000

April 2030

4.2p (5c)

50,000

June 2030

5.3p (7c)

4,423,500

September 2020

September 2030

7.8p (10c)

0

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

 (5,000)

–

5,000

12,500

 (25,000)

510,000

 (20,000)

390,000

–

–

–

–

–

155,000

2,083,333

1,500,000

500,000

7,000,000

(166,667)

333,333

–

–

–

994,000

425,000

400,000

 (350,000)

–

–

–

–

–

–

–

–

–

–

–

–

–

450,000

180,000

200,000

350,000

580,001

200,000

7,919,000

350,000

5,775,000

750,000

350,000

11,533,492

 (100,000)

–

–

–

–

–

670,666

5,000

50,000

100,000

 (200,000)

205,000

–

–

–

50,000

4,423,500

–

73

Corero Network Security plc  Annual Report and Accounts 2023

24. SHARE OPTIONS CONTINUED

Option holders

Date granted

expiry date

exercise 
price – pence
(cents)

At  
1 January 
2023

Granted

exercised

January 2021

January 2031

13.0p (18c)

485,000

November 2021

November 2031

9.25p (12c)

25,000

January 2022

January 2032

13.0p(18c) 4,260,000

September 2022

September 2032

10.8p (12c)

910,000

–

–

–

–

April 2023

April 2033

6.8p (8c)

–

245,000

–

–

–

–

–

Forfeit/
cancelled

At
31 December 
2023

 (75,000)

410,000

 (25,000)

–

– 

4,260,000

(510,000)

400,000

–

245,000

47,901,000 13,933,492

 (230,000)

 (1,491,667)

60,112,825

The closing mid-market price for the Company’s shares at 31 December 2023 was 8.25p (10.5c) and the low and high for the year was 
5.5p (7.0c) and 10.6p (13.5c). 

In the 12 months to 31 December 2023, 230,000 options were exercised (2022: 5,081,667) and 1,491,667 options were forfeited 
(2022: 2,117,500). The weighted average share price at date of exercise was 6.25p (8.0c). 

Share options granted at 31 December 2022 were as follows:

Option holders

Date granted

expiry date

enterprise Management incentive Scheme

exercise  
price – 
pence
(cents)

At  
1 January  

2022

Granted

exercised

Forfeit/
cancelled

At  
31 December 
2022

Other Holders

April 2019

April 2029

8.4p (11c)

10,000

September 2019 September 2029

2.5p (3c)

5,000

April 2020

June 2020

April 2030

4.2p (5c)

357,500

June 2030

5.3p (7c)

8,975,500

September 2020 September 2030

7.8p (10c)

10,000

October 2020

October 2030

9.0p (12c)

12,500

January 2021

January 2031 13.0p (18c)

685,000

November 2021 November 2031 9.25p (12c)

27,500

–

–

–

–

–

–

–

–

September 2022 September 2032 10.8p (12c)

–

410,000

executive enterprise Management incentive Scheme

Andrew Lloyd

April 2017

April 2027

8p (10c)

2,083,333

unapproved French Share Option Scheme

Lionel Chmilewsky

June 2020

June 2030

5.3p (7c)

7,000,000

January 2021

January 2031 13.0p (18c)

500,000

unapproved Share Option Scheme

Jens Montanana

Richard Last

Andrew Lloyd

April 2017

May 2018

April 2027

8p (10c)

994,000

May 2028 13.6p (18c)

425,000

October 2018

October 2028 11.0p (14c)

400,000

January 2021

January 2031 13.0p (18c)

350,000

April 2017

June 2017

April 2027

8p (10c)

450,000

June 2027

13.6 (18c)

180,000

October 2018

October 2028 11.0p (14c)

200,000

January 2021

January 2031 13.0p (18c)

350,000

April 2017

June 2017

April 2027

8p (10c)

580,001

June 2027

13.6 (18c)

200,000

74

Corero Network Security plc  Annual Report and Accounts 2023

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

10,000

5,000

357,500

(1,888,333)

(866,667)

6,220,500

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

10,000

12,500

(150,000)

535,000

(27,500)

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

410,000

2,083,333

7,000,000

500,000

994,000

425,000

400,000

350,000

450,000

180,000

200,000

350,000

580,001

200,000

NOTES TO THE FINANCIAL STATEMENTS CONTINUEDOverview

Strategic Report

Governance

FINANCIAL STATEMENTS

Corporate Directory

Option holders

Date granted

expiry date

exercise  
price – 
pence
(cents)

At  
1 January  

2022

Granted

exercised

Forfeit/
cancelled

At  
31 December 
2022

Ashley Stephenson

June 2020

June 2030

5.3p (7c)

7,919,000

Andrew Miller

Peter George

January 2021

January 2031 13.0p (18c)

350,000

June 2020

June 2030

5.3p (7c)

5,775,000

January 2019

January 2029 11.3p (15c)

750,000

January 2021

January 2031 13.0p (18c)

350,000

unapproved Share Option Scheme continued

Other holders

September 2011 September 2021 37.5p (61c)

40,000

March 2012

March 2022 54.5p (89c)

140,000

April 2013

May 2014

April 2023

25p (38c)

100,000

May 2024

25p (42c)

670,666

September 2016 September 2026 22.5p (33c)

5,000

October 2018

October 2028 11.0p (14c)

50,000

September 2019 September 2029

2.5p (3c)

3,531,667

April 2020

April 2020

June 2020

April 2030

4.2p (5c)

455,000

April 2030

4.2p (5c)

50,000

June 2030

5.3p (7c)

4,603,500

September 2020 September 2030

7.8p (10c)

300,000

January 2021

January 2031 13.0p (18c)

610,000

November 2021 November 2031 9.25p (12c)

25,000

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

January 2022

January 2032

13.0p(18c)

September 2022 September 2032 10.8p (12c)

– 4,260,000

–

910,000

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

7,919,000

350,000

5,775,000

750,000

350,000

(40,000)

(140,000)

–

–

–

–

–

–

100,000

670,666

5,000

50,000

(3,193,334)

(238,333)

100,000

–

–

–

–

–

–

–

–

(50,000)

405,000

–

50,000

(180,000)

4,423,500

(300,000)

–

(125,000)

485,000

–

–

–

25,000

4,260,000

910,000

49,520,167 5,580,000

(5,081,667)

(2,117,500)

47,901,000

The closing mid-market price for the Company’s shares at 31 December 2022 was 9.25p (11.2c) and the low and high for the year was 9.25p 
(11.2c) and 14.5p (19.0c). 

In the 12 months to 31 December 2022, 5,081,667 options were exercised (2021: nil) and 2,117,500 options were forfeited (2021: 1,805,833).

Total number of options granted to Directors

31 December 2023 
Options granted

31 December 2022 
Options granted

Relevant Share Option scheme

Ashley Stephenson

Andrew Miller

Jens Montanana
Lionel Chmilewsky
Peter George
Richard Last
Phil Richards

8,269,000

5,915,000

1,819,000
–
1,100,000
1,180,000
2,000,000
20,283,000

8,269,000

5,915,000

2,169,000
7,500,000
1,100,000
1,180,000
–
26,133,000

Unapproved Share Option Scheme
Executive Enterprise Management Scheme and Unapproved Share 
Option Scheme
Unapproved Share Option Scheme
Unapproved Share Option Scheme
Unapproved Share Option Scheme
Unapproved Share Option Scheme
Executive Enterprise Management Incentive Scheme

None of the Directors holding office at the balance sheet date exercised options during the year (2022: 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.

Corero Network Security plc  Annual Report and Accounts 2023

75

NOTES TO THE FINANCIAL STATEMENTS CONTINUED

24. SHARE OPTIONS CONTINUED
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 4.1p (4.6c). 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:

Share price at date of grants 

Exercise price

Expected volatility

Estimated years to exercise

Risk free interest rate

The table below provides information on all options outstanding at the end of the year:

Weighted average remaining contractual life

Average remaining contractual life

Options exercisable

Exercise price range

Weighted average share price

Weighted average exercise price

Expected volatility

Risk free rate – 5 year gilt rate

Expected dividend yield

2023

2022

6.8p–9.0p (9c–11c)

10.8p–13.0p (12c–18c)

6.8p–9.0p (9c–11c)

10.8p–13.0p (12c–18c)

44.7%–49.5%

54.7%–65.0%

4.0–5.0

3.7%–4.2%

4.0–4.8

1.0%–3.0%

7.0 years

6.6 years

42,044,889

2.5p–25p (3c–32c)

7.4p (8.3c)

7.6p (8.5c)

0.2%–75.6%

-0.08%–4.2%

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 $230,000 (2022: $386,000) relating to employee share-based payments.

25. RELATED PARTIES AND TRANSACTIONS
There have been no equity placings or offers in the year ended 31 December 2023 or 2022. 

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. 

76

Corero Network Security plc  Annual Report and Accounts 2023

Overview

Strategic Report

Governance

FINANCIAL STATEMENTS

Corporate Directory

COMPANY STATEMENT OF FINANCIAL POSITION
AS AT 31 DECEMBER 2023

Assets

Non-current assets

Investments in subsidiaries

Current assets

Trade and other receivables

Cash and cash equivalents

liabilities

Current liabilities

Trade and other payables

Borrowings

Net current assets/(liabilities)

Non-current liabilities

Trade and other payables

Borrowings

Net assets

total equity attributable to owners of the parent

Share capital

Share premium

Capital redemption reserve

Share options reserve

Foreign exchange translation reserve

Accumulated profit and loss reserve

total equity

As at 
31 December 
2023
$’000

As at 
31 December 
2022
$’000

Note

3

4

5

6

5

6

50,124

50,124

4,952

2,544

7,496

114

–

114

7,382

–

–

–

70,209

70,209

3,304

5,070

8,302

(8,427)

(971)

(9,398)

(1,096)

(100)

(237)

(337)

57,506 

68,848

6,999

82,430

7,051

1,659

(14,764)

(25,869)

6,980

82,284

7,051

1,465

(18,354)

(10,578)

57,506 

68,848

The Company made a loss for the year 31 December 2023 of $15,291,000 (2022: Profit of $1,697,000).

These financial statements were approved and authorised for issue by the Board of Directors on 26 March 2024 and signed on their behalf.

Carl Herberger
DIRECTOR

The notes on pages 79 to 82 form part of these financial statements.

Corero Network Security plc  Annual Report and Accounts 2023

77

COMPANY STATEMENT OF CHANGES IN EQUITY
FOR THE YEAR ENDED 31 DECEMBER 2023

1 January 2022

Profit for the year

Other comprehensive income

total comprehensive income 
for the year

Contributions by and 
distributions to owners

Issue of share capital  
– exercise of options

Fully exercised share options

Share based payments

total contributions by and 
distributions to owners

31 December 2022 and  
1 January 2023

Loss for the year

Other comprehensive income

total comprehensive income 
for the year

Contributions by and 
distributions to owners

Issue of share capital  
– exercise of options

Fully exercised share options

Share based payments

total contributions by and 
distributions to owners

Share 
capital
$’000

6,914

Share 
premium 
account
$’000

82,122

–

–

–

66

–

–

66

–

–

–

162

–

–

162

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

7,051

1,212

(10,532)

(12,275)

–

–

–

–

–

–

–

–

–

–

–

(94)

347

253

–

(7,822)

1,697

–

74,492

1,697

(7,822)

(7,882)

1,697

(6,125)

–

–

–

–

–

–

–

–

228

(94)

347

481

6,980

82,284

7,051

1,465

(18,354)

(10,578)

68,848

–

–

–

19

–

–

19

–

–

–

146

–

–

146

–

–

–

–

–

–

–

–

–

–

–

(3) 

197

194

–

(15,291) 

(15,291)

3,590

–

3,590

3,590

(15,291)

(11,701)

–

–

–

–

–

–

–

–

165

(3)

197

359

31 December 2023

6,999

82,430

7,051

 1,659 

(14,764) 

(25,869) 

 57,506 

78

Corero Network Security plc  Annual Report and Accounts 2023

Overview

Strategic Report

Governance

FINANCIAL STATEMENTS

Corporate Directory

An impairment provision is recorded against 
the intercompany loan note instrument 
between the Company and Corero Network 
Security, Inc. based on calculating the 
risk adjusted carrying value of the loan 
to take account of the credit loss which 
is expected to arise over the period until 
the cash is realised. The amount of the 
provision is based on whether there has 
been a significant increase in credit risk 
since the initial recognition of the loan. 
In situations where the credit risk has 
not increased significantly and the loan 
amount is expected to be recovered, the 
expected credit loss is limited to the effect 
of discounting the intercompany loan over 
the period until repayment is realised at the 
effective interest rate. 

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.

NOTES TO THE 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 2023 was between 
1.21-1.29 (2022: between 1.20-1.36). The 
closing $-GBP exchange rate used for 
the conversion of the Company’s assets 
and liabilities at 31 December 2023 was 
1.27 (2022: 1.21). 

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 IAS 7 Statement of 
Cash Flows, IFRS 7 Financial Instruments: 
Disclosures 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 loss for the year was $10.9 million 
(2022: $1.7 million profit).

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 2025 (‘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 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 Palestine, 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. 

2.2 Investments in subsidiaries
In the Company’s separate financial 
statements, investments in subsidiaries 
are carried at cost less any impairment 
provisions.

2.3 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. 

Corero Network Security plc  Annual Report and Accounts 2023

79

NOTES TO THE FINANCIAL STATEMENTS CONTINUED

3. INVESTMENT IN SUBSIDIARIES

Cost

At 1 January 2022

Additions

Foreign currency translation

At 31 December 2022 and at 1 January 2023

Additions

Repayment of Loan note

Foreign currency translation

At 31 December 2023

impairment

At 1 January 2022

Impairment credit/(charge)

Foreign currency translation

At 31 December 2022 and at 1 January 2023

Impairment charge

Foreign currency translation

At 31 December 2023

Net book value

At 31 December 2023

At 31 December 2022

At 1 January 2022

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

73,065

10,777

8,984

92,826

–

(7,740)

65,325

–

–

–

(1,142)

9,635

–

–

 3,374 

 502 

 68,698 

 10,137 

(11,735)

(5,020)

1,134

1,243

(9,358)

(10,859)

(87)

(20,304)

48,395

55,967

61,330

652

532

(3,836)

(4,069)

(503)

(8,408)

1,729

5,799

5,757

420

(961)

8,443

224

(9,089)

 422 

–

–

–

–

–

–

–

–

–

8,443

8,984

420

(9,843)

83,403

224

–

4,315

 78,836 

(16,755)

1,786

1,775

(13,194)

(14,928)

(590)

(28,712)

50,124

70,209

76,071

The Directors have reviewed the carrying value of the cost of investments in subsidiaries of the Company with reference to the Company 
market capitalisation at 31 December 2023 or on a discounted free cash flow valuation whichever is the higher value, which the Directors 
consider to be an appropriate valuation methodology. Based on the Company market capital valuation as at 31 December 2023, the 
provision against the investment in subsidiaries was $28.7 million (at 31 December 2022: $13.2 million), comprising a provision against the 
investment in Corero Network Security, Inc. and Corero Network Security (UK) Limited (together “CNS”) of $3.2 million and a provision 
against the investment in Corero Group Services Limited of $4.1 million. 

The Company’s investment in Corero Network Security, Inc. includes a loan note instrument. These loan notes bear interest at 5.0% 
per annum which at the election of Corero Network Security, Inc. is payable quarterly or added to the principal amount due on 31 October 
2026. As at 31 December 2023, the expected credit loss provision was $nil (2022: $nil). The loan note was effectively repaid in June 2023 
when the balance was netted off the intercompany account between the Company and Corero Network Security, Inc. 

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.

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Corero Network Security plc  Annual Report and Accounts 2023

Overview

Strategic Report

Governance

FINANCIAL STATEMENTS

Corporate Directory

4. OTHER RECEIVABLES 

Other debtors 

Prepayments

Trading amounts due from subsidiaries

None of the Company’s trade and other receivables are secured by collateral or credit enhancements (2022: None).

The maturity profile of trade and other receivables is set out in the table below:

In one year or less, or on demand

In more than one year, but not more than five years

2023
$’000

82

4

4,866

4,952

2023
$’000

4,952

–

4,952

2022
$’000

68

19

3,217

3,304

2022
$’000

3,232

72

3,304

At 31 December 2023, presentation of Other receivables in the Company Balance sheet has been changed in accordance with IAS 1.  
Other receivables due to mature in over one year were previously presented as non current assets in the Company Balance sheet but are 
now disclosed within this note in accordance with IAS 1. The nature of the assets have not changed.

The analysis of trade and other receivables by foreign currency is set out in the table below:

US dollars

UK pound

5. OTHER PAYABLES 

Trading amounts due to subsidiaries

Other payables 

Accruals

2023
$’000

–

4,952

4,952

2023
$’000

–

1

113

114

2022
$’000

–

3,304

3,304

2022
$’000

8,427

–

100

8,527

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% (2022: 74%) 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:

US dollars

UK pound

2023
$’000

–

114

114

2022
$’000

–

8,527

8,527

Corero Network Security plc  Annual Report and Accounts 2023

81

6. BORROWINGS
The Company borrowings:

Bank loan

2023
$’000

–

2022
$’000

1,208

On 27 June 2023, the Group repaid all outstanding external borrowings from the £2.0 million term loan facility. There is no interest payable 
at 31 December 2023, and no contractual future cash flows in relation to the term loan facility.

At 31 December 2023, the Group continued to have access to an undrawn £1.0 million Revolving Credit Facility (‘RCF’) which was due to 
expire in March 2024. The facility terms include: no early repayment penalties or redemption premium; a reduced interest rate (payable 
quarterly) at 6.5% per annum over the Bank of England base rate before any potential downward EBITDA margin ratchet adjustment; 
2.6% interest per annum on the RCF; arrangement fee of 3.75%; and standard security and loan covenants in line with the existing lending 
arrangements including the payment of a fee equal to 1.0% of the disposal proceeds on a sale or a change of control of the Company 
above a threshold amount of £100.0 million if such disposal or change of control occurs before April 2025.

The remaining contractual future cash flows relating to the RCF amount to $88,982 payable in March 2024 in relation to the close out  
of the facility. 

The bank loan was secured by debentures over the business assets of all Group companies and by Group Company guarantees including 
a guarantee from the Company. The bank loan terms included typical covenants for such a loan, as well as revenue and cash consumption 
covenants, which were tested quarterly and monthly respectively. These covenants were met for each covenant reporting period in the 
reporting period ended 31 December 2023 and 31 December 2022.

7. RELATED PARTIES AND TRANSACTIONS
Company key management compensation was $nil (2022: $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. 

82

Corero Network Security plc  Annual Report and Accounts 2023

NOTES TO THE FINANCIAL STATEMENTS CONTINUEDOverview

Strategic Report

Governance

FINANCIAL STATEMENTS

Corporate Directory

GLOSSARY

5G

Ai

AiM

ARR

CAGR

CGu

CNS 

Cpu

CSps

DDoS

DDpaaS 

DpDk

Dpi

eBitDA

eu

FCA

FRC

FRS

iAS 

iFRS

iot

iSA

MSSp

NiCs

pOps 

pppl 

RCF

R&D

ROi

SOC

SSp 

tCO

tDC

tDD

tDS

Fifth Generation Cellular Network Technology

Artificial Intelligence 

Alternative Investment Market

Annualised Recurring Revenues 

Compound Annual Growth Rate 

Cash-Generating Unit 

Corero Network Security 

Central Processing Unit

Communication Service Providers 

Distributed Denial of Service 

DDoS Protection as-a-Service 

Data Plane Development Kit 

Deep Packet Inspection 

Earnings Before Interest, Tax, Depreciation, and Amortisation

European Union

Financial Conduct Authority

Financial Reporting Council

Financial Reporting Standard

International Accounting Standards

International Financial Reporting Standards 

Internet of Things

International Standard on Auditing 

Managed Security Service Provider

Network Interface Cards

Points of Presence

Paycheck Protection Program Loan 

Revolving Credit Facility

Research and Development

Return On Investment

Security Operations Center

Stand–alone Selling Prices 

Total Cost of Ownership

SmartWall® Threat Defense Cloud

SmartWall® Threat Defense Director

SmartWall® Threat Defense System 

Corero Network Security plc  Annual Report and Accounts 2023

83

CORPORATE DIRECTORY

DIRECTORS 
Jens Montanana (Executive Chairman) 
Richard Last (Non-executive Director) 
Peter George (Non-executive Director) 
Andrew Miller (Interim Chief Operating Officer) 
Ashley Stephenson (Chief Technology Officer)
Phil Richards (Chief Financial Officer)  

SECRETARY AND REGISTERED OFFICE 
phil Richards 
Salisbury House 
29 Finsbury Circus 
London 
EC2M 5QQ 
UK 

NOMINATED ADVISER AND BROKER 
Canaccord Genuity ltd 
88 Wood Street 
London 
EC2V 7QR  
UK 

FINANCIAL PUBLIC RELATIONS
Vigo Communications 
Sackville House 
40 Piccadilly 
London 
W1J 0DR 

AUDITOR 
Macintyre Hudson llp 
2 London Wall Place, 
London
EC2Y 5AU
UK

SOLICITORS 
Dorsey and whitney llp 
199 Bishopsgate 
London 
EC2M 3UT  
UK 

BANKERS 
Santander 
2 The Forbury 
Reading 
RG1 3EU  
UK

wells Fargo 
420 Montgomery Street
San Francisco, 
CA 94104
USA  

REGISTRARS 
link Group 
10th Floor 
Central Square 
29 Wellington Street 
Leeds 
LS1 4DL  
UK 

WEBSITE ADDRESS
www.corero.com

Printed by a Carbon Neutral Operation (certified: CarbonQuota) under the PAS2060 standard. 

Printed on material from well-managed, FSC™ certified forests and other controlled sources. 
This publication was printed by an FSC™ certified printer that holds an ISO 14001 certification. 

100% of the inks used are HP Indigo ElectroInk which complies with RoHS legislation and 
meets the chemical requirements of the Nordic Ecolabel (Nordic Swan) for printing companies, 
95% of press chemicals are recycled for further use and, on average 99% of any waste 
associated with this production will be recycled and the remaining 1% used to generate energy. 

The paper is Carbon Balanced with World Land Trust, an international conservation charity, who 
offset carbon emissions through the purchase and preservation of high conservation value land. 
Through protecting standing forests, under threat of clearance, carbon is locked-in, that would 
otherwise be released.

84

Corero Network Security plc  Annual Report and Accounts 2023

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COReRO NetwORk SeCuRity plC 

Registered Office 
Salisbury House 
29 Finsbury Circus 
London 
EC2M 5QQ 
UK