Microsoft Purview compliance portal: Purview Information Protection | Classifier Simulation Mode (Health Monitoring)

🚨 The Signal: Purview now offers Classifier Simulation Mode, enabling pre-publication testing of custom sensitive information types (SITs) on production data. This improves accuracy, reduces false positives, and optimizes data loss prevention (DLP) policies.

The Impact

Security teams and Purview admins are affected, gaining a tool to reduce data classification errors and improve DLP posture.

• Security Teams: Reduced false positives in DLP alerts.
• Purview Admins: Improved accuracy and efficiency in custom SIT deployment.
• Compliance Officers: Better assurance of data classification integrity.
• Data Owners: More accurate protection of sensitive information.

The Action

1. Review existing custom Sensitive Information Types (SITs) for potential simulation.
2. Navigate to Microsoft Purview compliance portal > Data classification > Sensitive info types.
3. Select a custom SIT and choose the 'Simulate' option to test against production data.
4. Analyze simulation results to refine classifier logic and reduce false positives.
5. Publish the optimized custom SIT after successful simulation.

Domain: Purview · Impact: medium · Workload: Microsoft Purview