Microsoft 365 Message Center item MC1438561
MC1438561 - (Updated) Microsoft Purview Data loss prevention: debug tools activity now visible in managed app rules
Microsoft postponed making debug tools activity visible in managed app DLP rules for Microsoft Edge for Business. The protection remains enforced but hidden. No changes affect users or enforcement. Administrators will be informed when the update proceeds; no action is required now.
- Message Center ID
- MC1438561
- Category
- prevent Or Fix Issue
- Severity
- normal
- Services
- Microsoft Purview
- Tags
- Updated message, Admin impact
- Published
- 2026-07-24
- Last updated
- 2026-08-12
- Expires
- 2026-12-07
Updated August 12, 2026: We have decided not to move forward with this change at this time. We will communicate via Message center when we are ready to proceed. We apologize for any inconvenience. [What and why]We are improving transparency in Microsoft Purview Data Loss Prevention (DLP) for managed apps in Microsoft Edge for Business.The protection that blocks browser developer tools (debug tools) is always enforced by default for managed app scenarios. With this update, administrators will now see this protection explicitly displayed within applicable DLP rules in addition to it being applied behind the scenes.This change improves visibility and helps admins better understand how managed app protections are configured without changing existing enforcement behavior. It makes protection settings easier to review and validate.[Rollout schedule]Worldwide: We will communicate via Message center when we are ready to proceed.[Impact on your organization]Who is affectedAdministrators who create, edit, or review Microsoft Purview DLP policies that target managed apps (Enterprise applications and devices -> Managed cloud apps) in Microsoft Edge for Business[Platforms and services]Microsoft Purview Data Loss PreventionMicrosoft Edge for BusinessManaged app protectionsWhat will happenThe developer tools (debug tools) protection will appear as a visible activity within applicable managed app DLP rules.The protection remains enabled by default and continues to block access to developer tools in Edge for Business.Admins cannot modify this protection.New managed app DLP rules will display the activity when created.Existing managed app DLP rules will display the activity after the next edit and save operation.DLP enforcement behavior is unchanged.Existing policies continue to function exactly as they do today.Users will experience no changes.[Action required and recommendations]No action is required.Recommended actions:Inform DLP administrators that the developer tools protection will now be visible within managed app DLP rules.Update any internal documentation that describes managed app DLP rule configuration, if applicable.Review the Microsoft documentation for managed app interactions.Learn morePolicies for managed app interactions - Learn about Data Loss Prevention for Cloud Apps in Edge for Business | Microsoft Purview | Microsoft LearnHelp prevent users from sharing sensitive information with cloud apps in Microsoft Edge for Business | Microsoft Purview | Microsoft Learn[Compliance considerations]No compliance considerations identified. Review as appropriate for your organization.