Notice of Results

11 March 2020

Corero Network Security plc

("Corero")

Notice of Results

Corero Network Security plc (AIM: CNS) will announce its results for the year ended 31 December 2019 on Monday, 6 April 2020.

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About Corero Network Security

Corero Network Security is a leader in real-time, high-performance DDoS defense solutions. Service providers, hosting providers and digital enterprises rely on Corero's award winning technology to eliminate the DDoS threat to their environment through automatic attack detection and mitigation, coupled with complete network visibility, analytics and reporting. This industry leading technology provides cost effective, scalable protection capabilities against DDoS attacks in the most complex environments while enabling a more cost effective economic model than previously available. For more information, visit www.corero.com