My SharePoint permissions are too messy for Copilot rollout

Microsoft 365 Copilot retrieves SharePoint content through existing Graph permissions. Oversharing, guests, broken inheritance, and ownerless sites become visible in AI answers. Small admin teams must triage scattered access risk before rollout.

This is a researched blocker from SharePoint & Teams Admins. Below is the solution path — from understanding it to a paste-ready asset.