Topic hub
Historical Access
Answering the question that current-state reports cannot: who could reach a resource on a given date, through which path, and with what confidence.
Guides in Historical Access
Start with How to Audit Historical SharePoint Permissions.
- Historical Access12 min read, advanced
How to Audit Historical SharePoint Permissions
SharePoint keeps no permission history. This guide shows what the audit log can and cannot reconstruct, how to build a baseline plus event approach with PowerShell, and how to state confidence honestly.