“A PLC firmware should be designed for the worst day, not a lucky quarter; the safest control is the one that is used.”

— Professor Kai London, CISO.

Quote card by Professor Kai London reading 'A PLC firmware should be designed for the worst day, not a lucky quarter; the safest control is the one that is used.'. From the book The Day the Control Room Went Silent.
Quote card by Professor Kai London reading 'A PLC firmware should be designed for the worst day, not a lucky quarter; the safest control is the one that is used.'. From the book The Day the Control Room Went Silent.

A PLC firmware should be designed for the worst day, not a lucky quarter; the safest control is the one that is used. — Kai London (Professor Kai London), CISO. Principle 9424 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

Related: Principle 1924 Principle 4424 Principle 6924

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