560601 – Microsoft Purview: Insider Risk Management – Reduce temporary file noise for Endpoint activities in IRM

Product:

Purview, Purview Communication Compliance, Purview Information Protection, Purview Insider Risk Management, Windows

Platform:

Web, World tenant

Status:

In development

Change type:

Links:

Details:

When files are opened in Windows, the operating system, and applications (for example, Microsoft Office and browsers) can create, rename, and delete temporary files as part of normal behavior. The Endpoint client audits these activities, resulting in high-volume, low-signal events that appear as “noise” for Insider Risk Management (IRM) customers. While global exclusions exist (file type, keyword, file path, etc.), some temporary file naming patterns are not easily captured with the current exclusions, leaving customers without a practical way to reduce noise without over-excluding. This feature introduces built-in filtering for well-known temporary file name patterns so that Endpoint file operations are excluded from IRM activity explorer and scoring reducing noise allowing customers to focus on the most relevant alerts. Microsoft Purview Insider Risk Management correlates various signals to identify potential malicious or inadvertent insider risks, such as IP theft, data leakage, and security violations. Insider Risk Management enables customers to create policies based on their own internal policies, governance, and organizational requirements. Built with privacy by design, users are pseudonymized by default, and role-based access controls and audit logs are in place to help ensure user-level privacy.

Change Category:
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Scope:
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Release Phase:
General Availability, Preview

Created:
2026-05-08

updated:
2026-06-11

Public Preview Start Date

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Docu to Check

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MS workload name

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summary for non-techies**

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Direct effects for Operations**

Increased Noise in Insider Risk Management
Without the new filtering feature, the high volume of temporary file events will overwhelm the Insider Risk Management system, making it difficult to identify genuine risks and leading to potential security threats being overlooked.
   - roles: Security Analysts, Compliance Officers
   - references: https://techcommunity.microsoft.com/t5/security-compliance-identity/insider-risk-management-in-microsoft-purview/ba-p/3651230

User Experience Degradation
The inability to filter out temporary file noise may lead to increased false positives in alerts, causing frustration among users and potentially leading to unnecessary investigations or actions that disrupt normal operations.
   - roles: End Users, IT Support Staff
   - references: https://www.microsoft.com/en-us/security/blog/2021/06/15/insider-risk-management-in-microsoft-purview/

Configutation Options**

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IT Security**

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explanation for non-techies**

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