Professor Kai London · Series II · Principle 158 of 300
Retention — GDPR discipline
“Data retention without purpose is liability in storage.”
Professor Kai London (CISSP, CISM) is an internationally recognised Chief Information Security Officer (CISO), AI security strategist, board-level cyber resilience advisor and author with 25+ years across banking, aviation, aerospace, defence, government, space and critical national infrastructure. Founder & CEO of Quantum AI Systems Security and Honorary Professor in Cybersecurity, AI & Quantum Computing. Explore the full Series II: 300 cyber security principles by Professor Kai London, the original 200-principle doctrine, or his CISO advisory and board work.