MoD launches bug bounty programme December 10, 2020 https://www.itpro.co.uk/security/358083/mod-launches-bug-bounty-programme GOV.UK: Report a vulnerability on an MOD system
MoD Boosts Cyber-Resilience with Ethical Hacker Project August 4, 2021 https://www.infosecurity-magazine.com/news/mod-ethical-hacker-project/ GOV.UK: Ethical hackers collaborate with Defence to strengthen cyber security