Microsoft 365 Copilot does not change your permissions, but it can make existing oversharing easier to discover. Forgotten SharePoint sites and outdated documents can become sources for answers simply because users already have access. How do you tackle years of redundant, obsolete, and trivial (ROT) data without deleting content people still need?

In this practical, demo-driven session, Jeroen Bijdevier and Pieter Kops explore three decisions:
• Which content should Copilot discover and use?
• Which content should be preserved but excluded from Copilot responses?
• Which content should be retained, archived, or deleted according to policy?

Jeroen demonstrates how Data Access Governance reports and SharePoint Advanced Management help identify oversharing and inactive sites, and how Microsoft Purview Data Lifecycle Management supports retention and deletion decisions.

Pieter demonstrates site-level and file-level archiving with Microsoft 365 Archive, showing how to reduce Copilot noise while preserving content for future retrieval. Together, we explain where Restricted Content Discovery fits while access and content are reviewed.

You will leave with a phased approach you can start applying on Monday: assess exposure, involve content owners, and choose the right action.

Level: Intermediate. Working knowledge of Microsoft 365, SharePoint, Teams, and permissions is recommended. No specialist Purview knowledge required.