Data loss prevention capabilities include Microsoft Teams chat and channel messages, including private channel messages for:
- Office 365 E5/A5/G5
- Microsoft 365 E5/A5/G5
- Microsoft 365 E5/A5/G5 Information Protection and Governance
- Microsoft 365 E5/A5/G5/F5 Compliance and F5 Security & Compliance
Office 365 and Microsoft 365 E3 include DLP protection for SharePoint, OneDrive, and Exchange. This also includes files that are shared through Teams because Teams uses SharePoint and OneDrive to share files.
Support for DLP protection in Teams Chat requires an E5 license.
To learn more about licensing requirements, see Microsoft 365 Tenant-Level Services Licensing Guidance.
Important
DLP applies only to the actual messages in the chat or channel thread. Activity notifications,which include a short message preview and appear based on a user’s notification settings, are not included in Teams DLP. Any sensitive information present in the part of the message that appears in the preview will remain visible in the notification, even after the DLP policy has been applied and removed sensitive information from the message itself.