Microsoft Data Loss Prevention Course

Key insights

• Microsoft Purview DLP protects sensitive data by identifying, monitoring, and preventing accidental or unauthorized sharing across Microsoft 365 and endpoints.
  
• Sensitive information types, DLP policies, and protective actions define detection and response: set what to find, create rules, then warn, restrict, or block when rules match.
  
• Use a managed lifecycle to deploy safely: start in simulation mode, tune policies based on results, and perform a staged rollout to avoid business disruption and reduce false positives.
  
• Cover all locations where data moves: enforce controls in Exchange, SharePoint, OneDrive, Teams, endpoints, and AI/Copilot interactions to keep protection consistent.
  
• Measure and refine with monitoring tools: review activity in Activity Explorer, set alerting and reports, and run targeted queries to find gaps and improve rules.
  
• Build practical, repeatable controls: create repeatable policies for Finance, HR, PII, and IP, use custom detection when needed, and prefer warnings or overrides until policy behavior is validated.
  

Keywords

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