Ungoverned AI use is not a technology problem. It is a boundary problem. Client data lives inside your Microsoft 365 tenant; the tools your staff reach for live outside it.
A governed deployment draws that boundary in policy, enforces it on every request, in both directions, and keeps a record of each decision.
The block is the visible part. The record is the part that matters at renewal.
When an auditor asks how AI use is governed, the answer is a report, not a promise.