Applications & Data · Collaboration
SharePoint Online & OneDrive
Microsoft 365's document and collaboration storage layer, underpinning Teams files, OneDrive and intranet sites.
IntermediateMicrosoftUpdated 2026-09-01
Overview
Every Team has a SharePoint site behind it, and OneDrive is a personal SharePoint site. Understanding that single storage layer explains most permission, retention and sharing behaviour across Microsoft 365.
Governance decisions that matter: who can create sites and Teams, default external sharing settings, sensitivity labels on containers, and retention policy.
Security considerations
- Restrict anonymous sharing links and set expiry; review externally shared content regularly.
- Apply retention and sensitivity labels at the container level, and monitor mass download activity.