Microsoft Purview Data Loss Prevention (DLP)
Policies that detect, monitor, and restrict the sharing of sensitive information across Microsoft 365 locations and endpoints, including Copilot.
Microsoft Purview Data Loss Prevention lets administrators define policies that detect sensitive information—credit card numbers, health records, or custom patterns—and apply protective actions like blocking sharing, restricting access, or notifying users across Exchange, SharePoint, OneDrive, Teams, and endpoints, with matches surfaced as alerts admins triage in the Microsoft Purview portal. For AB-900, distinguish DLP from sensitivity labels: labels classify and mark a document, while DLP enforces actions based on content or sharing. DLP also offers a Microsoft 365 Copilot location, letting organizations exclude items carrying specific sensitivity labels from Copilot responses.
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