Most workers wouldn’t even think about emailing a confidential planning document outside of the company. Microsoft’s new Endpoint Data Loss Prevention service might flag you for a chat with your IT department if you carelessly copy it to a local hard drive, however.
Microsoft’s new Endpoint Data Loss Prevention (Endpoint DLP) builds upon the existing DLP services within Microsoft 365 (Microsoft Teams, SharePoint, Exchange, and OneDrive, among others), which can track email and other documents sent to and from your company’s servers. That service will likely flag an attempt to forward an internal confidential email to an external email address, which most users already know not to do.