December 2025
Focus
Focus
Enterprise DLP

December 2025

Table of Contents

December 2025

Review the new features introduced to Enterprise Data Loss Prevention (E-DLP) in December 2025.

Strengthening MPIP Labeling Security

December 9, 2025
Microsoft periodically makes changes to Purview (formerly AIP) labels that can cause your existing Enterprise Data Loss Prevention (E-DLP) file property data patterns to fail to detect sensitive documents. When these detection mechanisms fail, sensitive data labeled with Microsoft Purview labels might bypass Enterprise DLP inspection, which can lead to compliance risks and unintended data exposure.
Strengthening MPIP Labeling Security significantly improves the resiliency and reliability of Enterprise DLP patterns that inspect for Purview labels. Enterprise DLP now has a more robust detection mechanism for file property data patterns that detect for Purview labels. This shields your policy rules against labeling changes initiated by Microsoft updates, ensuring your detection patterns remain effective without requiring frequent, reactive updates from your data security administrators. This strengthened consistency and stability saves your team significant time and resources by eliminating the need for constant monitoring and updating, ensuring consistent data security enforcement despite changes from Microsoft.