NewMicrosoft Purview · SharePoint Online · OneDrive
Microsoft Purview: Data Loss Prevention – Block External Domain/User action in DLP for SharePoint/OneDrive
Admins can now create DLP policies that block file access from specific external domains or users in SharePoint and OneDrive, providing granular control over sensitive data exposure. This adds enforcement capability beyond detection for external sharing scenarios.
Action required: Review and configure DLP policies to leverage the new Block External Domain/User action for SharePoint and OneDrive to enforce external access controls.
Key dates
- 2024 — preview (Feature currently in development/preview)
Microsoft's description
Block External Domain/User action in Microsoft Purview DLP for SharePoint and OneDrive, gives organizations stronger control over who can access sensitive files. With this enhancement, admins can configure DLP policies that block file access for specific external domains or individual users. This capability helps prevent unintended exposure by external users and supports enterprise compliance requirements.