28 October 2022

Corero Network Security plc

("Corero", or "the Company")

Appointment of Chief Financial Officer

Corero Network Security plc (AIM: CNS), a leading provider of real-time high-performance, automatic Distributed Denial of Service ("DDoS") cyber defense solutions, is pleased to announce that it has appointed Philip Richards to the role of Chief Financial Officer of the Company.

Philip is an experienced finance professional with significant commercial, capital markets and investor relations experience, and will join Corero on 21 November 2022.

Philip is currently SVP of Finance at Kambi Group plc, a UK-Swedish based gaming company listed on First North at Nasdaq Stockholm, having joined the business in 2017 as Financial Controller, also serving as US General Manager from 2019 to 2020.  Philip also held the position of a financial controller within the RDS plc group from 2014 to 2016, having previously worked for KPMG as Audit Manager across the Media and Technology sectors from 2008 to 2014.

It is planned that Philip will join the Board of Directors in due course, and other than that set out below, there is no further information required to be disclosed under Rule 17 and Schedule Two, paragraph (g) of the AIM Rules.

Following this appointment, Andrew Miller will, following a handover period, revert to his role as a Non-Executive Director for the Company on 1 January 2023.

Lionel Chmilewsky, Chief Executive Officer, commented:

"I would like to welcome Philip to Corero and look forward to working with him as we focus on accelerating our progress and delivering further growth. His experience will further strengthen the Company's skillset and will also contribute to our future success."

Philip Richards added:

"I am delighted to be joining Corero at such an exciting time in the Company's development. I am very much looking forward to working with the team to deliver the next phase of growth and help drive the Company forward to achieve its ambitions."

Details in respect of Philip Richards, as required pursuant to Rule 17 and Schedule 2(g) of the AIM Rules for Companies, are as set out below.

Additional Information

Philip William Richards, age 37, is currently or has been a Director of the following companies within the past five years:

The information contained within this announcement was deemed to constitute inside information as stipulated under the Market Abuse Regulation (EU) No. 596/2014, as amended by regulation 11 of the Market Abuse (Amendment) (EU Exit) Regulations 2019/310, prior to release of this announcement. Upon the publication of this announcement, this inside information is now considered to be in the public domain.

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About Corero Network Security

Corero Network Security plc is a global leader in real-time, high-performance, automatic DDoS cyber defense solutions. Both Service and Hosting providers, alongside digital enterprises across the globe rely on Corero's award winning cybersecurity technology to eliminate the threat of Distributed Denial of Service (DDoS) to their digital environment through automatic attack detection and mitigation, coupled with network visibility, analytics and reporting. Corero's industry leading SmartWall and SecureWatch technology provides scalable protection capabilities against external DDoS attackers and internal DDoS botnets in the most complex edge and subscriber environments, while enabling a more cost-effective economic model than previously available. Corero's key operational centers located in Marlborough, Massachusetts, USA and Edinburgh, UK, with the Company's headquarters in London, UK. The Company is listed on the London Stock Exchange's AIM market under the ticker CNS. For more information, visit www.corero.com.