SECAI Core · phase 8 of 15

Due diligence

A legal principle that a subject has used best practice or reasonable care when setting up, configuring, and maintaining a system.

The Explain card

Plain English
Due diligence is the legal principle that you took reasonable care and followed best practice when setting up, configuring and maintaining a system. It is about demonstrable effort, not perfection.
Example
A company deploys a third-party LLM in its customer portal. Before launch it reviews the vendor's security documentation, runs a red-team exercise, documents the findings and fixes the serious ones. When a breach later occurs, those records show the company acted responsibly.
Why it matters
After an AI incident, regulators and courts ask what you did before it happened. Evidence of reasonable care can be the difference between a fine and a finding of negligence.
Hook
Did your homework, and kept the receipts.

Where it sits in the deck

Phase 8: Governance, Risk, and Compliance Frameworks

Individual controls need a governance envelope — introduce the risk and compliance structures, standards bodies, and regulations that frame AI accountability at scale.