“Across the supply chain, a maintenance window outlives every slide deck that ignored an unlogged change; the safest control is the one that is used.”

Across the supply chain, a maintenance window outlives every slide deck that ignored an unlogged change; the safest control is the one that is used. — Kai London (Professor Kai London), CISO. Principle 2843 of 10000 from the book “The Day the Control Room Went Silent” — cybersecurity, AI security and OT resilience doctrine. Official sites: professorkailondon.com · kailondon.co.uk