
Cyber Leaders How Modern Threats Are Redefining the Rules of Defense with Paul Chichester
Nov 7, 2025
Paul Chichester, a seasoned leader at the UK's National Cyber Security Centre with over 30 years at GCHQ, shares his insights on evolving cyber threats. He delves into the shift from traditional espionage to rampant ransomware attacks and outlines key moments in cyber history, like WannaCry and Colonial Pipeline. Paul emphasizes the need for public-private partnerships in defense and stresses the importance of transparency in security operations. He also discusses how AI is a double-edged sword for both attackers and defenders.
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States Use Cyber As A Strategic Tool
- State cyber activity has evolved from pure espionage to an integrated tool for geopolitical aims.
- Paul Chichester warns that states now use cyber operations across espionage, IP theft and disruption.
Criminals Are Highly Adaptive
- Criminals exploit society's growing reliance on technology and adapt quickly.
- Chichester stresses that individuals and organisations share responsibility to reduce harm.
Career-Defining Incidents
- Paul Chichester recalls Moonlight Maze and the pivot from espionage to IP theft in the 2000s.
- He cites incidents like DDoS on finance, Sony and WannaCry as formative moments.




