💡 Our Technical Review in summary
1. Summary
Microsoft Purview Data Loss Prevention (DLP) policies in the Australia region experienced intermittent failures between February 2, 2026, 8:46 PM UTC and February 2, 2026, 11:55 PM UTC. The issue was triggered by recent network configuration changes intended to improve service reliability, which unexpectedly caused an increase in request failures.
2. Impact
Users in the Australia region may have experienced reduced effectiveness or intermittent failure of DLP policies. This affected the enforcement of data protection rules across the following services:
- Exchange Online
- SharePoint Online & Microsoft OneDrive
- Microsoft Teams
- Microsoft Purview DLP for Endpoint
- Microsoft Defender for Cloud Apps
- Power BI
3. Status
Status: Service Restored
Microsoft engineers identified the problematic network configuration changes and successfully reverted them. Service telemetry confirms that DLP policy application has returned to normal levels. Microsoft is currently conducting a post-incident review to prevent future occurrences of similar network-related triggers.
Microsoft Official Issue Details
User Impact
Users’ Microsoft Purview Data Loss Prevention (DLP) policies in Australia may have intermittently fail.
Status: serviceRestored
Service: Microsoft Purview
Classification: incident
Origin: microsoft
Updates
- 2026-02-03 00:29
Title: Users’ Microsoft Purview Data Loss Prevention (DLP) policies in Australia may intermittently failUser impact: Users’ Microsoft Purview Data Loss Prevention (DLP) policies in Australia may have intermittently fail.
More info: Affected services included but may have not been limited to the application of DLP policies in:
– Exchange Online
– SharePoint Online
– Microsoft OneDrive
– Microsoft Teams
– Microsoft Purview Data Loss Prevention for Endpoint
– Microsoft Defender for Cloud Apps
– Power BIFinal status: We identified recent network configuration changes that caused the impact to DLP policies. We reverted the changes and monitored the telemetry to validate that the impact was remediated.
Scope of impact: Any user in the Australia region may have been intermittently affected.
Start time: Monday, February 2, 2026, at 8:46 PM UTC
End time: Monday, February 2, 2026, at 11:55 PM UTC
Root cause: Recent network configuration changes intended to improve service reliability caused impact to DLP policies.
Next steps:
– We’re further reviewing the recently implemented network configuration changes to better understand what triggered the initial impact, which will help us in finding ways to avoid similar situations in the future.This is the final update for the event.
- 2026-02-02 23:00
Title: Users’ Microsoft Purview Data Loss Prevention (DLP) policies in Australia may intermittently failUser impact: Users’ Microsoft Purview Data Loss Prevention (DLP) policies in Australia may intermittently fail.
More info: Affected services include but may not be limited to the application of DLP policies in:
– Exchange Online
– SharePoint Online
– Microsoft OneDrive
– Microsoft Teams
– Microsoft Purview Data Loss Prevention for Endpoint
– Microsoft Defender for Cloud Apps
– Power BICurrent status: Our monitoring has identified an increase in DLP request failures affecting the Australia region. We’re reviewing service telemetry to better understand the impact scenario and determine our next steps.
Scope of impact: Any user in the Australia region may be intermittently affected.
Next update by: Tuesday, February 3, 2026, at 12:30 AM UTC
- 2026-02-02 22:36
Title: Some users in Australia may experience reduced effectiveness of Microsoft Purview Data Loss Prevention (DLP) policiesUser impact: Users may experience reduced effectiveness of DLP polices across multiple Microsoft 365 services.
More info: Affected services include but may not be limited to the application of DLP policies in:
– Exchange Online
– SharePoint Online
– Microsoft OneDrive
– Microsoft Teams
– Microsoft Purview Data Loss Prevention for Endpoint
– Microsoft Defender for Cloud Apps
– Power BICurrent status: We’re investigating a potential issue with Microsoft Purview Data Loss Prevention and checking for impact to your organization. We’ll provide an update within 30 minutes.
