Microsoft expands Purview DLP enforcement for Copilot across local and cloud Office files
Security Tool/Service
Summary
Hide ▲
Show ▼
Microsoft is expanding Purview DLP so Microsoft 365 Copilot cannot process restricted Word, Excel, and PowerPoint files stored on local devices, SharePoint, or OneDrive. The rollout closes a protection gap that previously left local Office files outside DLP enforcement and matters because it standardizes Copilot access controls across storage locations.
Related Happenings
Microsoft Office launch disruption after June 2026 Windows updates
Service Disruption
H score0
First: 17.06.2026 14:54
Last: 17.06.2026 14:54
Sources 1
About this happening:
Microsoft is investigating a **Windows update-related disruption** that can stop **third-party applications** from launching **Word, Excel, PowerPoint, Access** or opening documen...
Microsoft Office launch disruption after June 2026 Windows updates
Service DisruptionAbout this happening: Microsoft is investigating a **Windows update-related disruption** that can stop **third-party applications** from launching **Word, Excel, PowerPoint, Access** or opening documen...
Microsoft 365 Copilot Enterprise SearchLeak remote code execution flaw (CVE-2026-42824)
Vulnerability
H score34
First: 15.06.2026 16:00
Last: 15.06.2026 16:00
Sources 1
About this happening:
**Microsoft 365 Copilot Enterprise Search** has a **critical** vulnerability chain, **SearchLeak**, that could let a user leak **emails, calendar details, MFA codes, and indexed f...
Microsoft 365 Copilot Enterprise SearchLeak remote code execution flaw (CVE-2026-42824)
VulnerabilityAbout this happening: **Microsoft 365 Copilot Enterprise Search** has a **critical** vulnerability chain, **SearchLeak**, that could let a user leak **emails, calendar details, MFA codes, and indexed f...
Microsoft Windows 11 KB5079473 Microsoft account sign-in disruption
Service Disruption
H score0
First: 20.03.2026 09:33
Last: 20.03.2026 09:33
Sources 1
About this happening:
**Microsoft**'s **Windows 11 KB5079473** update is disrupting **Microsoft account sign-ins** across multiple apps, creating false **no-internet** errors and blocking normal access...
Microsoft Windows 11 KB5079473 Microsoft account sign-in disruption
Service DisruptionAbout this happening: **Microsoft**'s **Windows 11 KB5079473** update is disrupting **Microsoft account sign-ins** across multiple apps, creating false **no-internet** errors and blocking normal access...
Latest development: 23.03.2026 10:04
Microsoft started rolling out the KB5085516 optional out-of-band update to fix the Microsoft account sign-in bug that appears after KB5079473 on Windows 11 25H2 and 24H2. The update addresses the false no-internet sign-in failure affecting Microsoft Teams, OneDrive, Microsoft Edge, Microsoft 365 Copilot, Excel, and Word, and it is available through Windows Update or the Microsoft Update Catalog.
Microsoft KB5084597 hotpatch for Windows 11 RRAS RCE flaws
Security Patch Release
H score30
First: 14.03.2026 23:48
Last: 14.03.2026 23:48
Sources 1
About this happening:
**Microsoft** released **KB5084597** as an **out-of-band hotpatch** for **Windows 11 Enterprise** devices, closing **RRAS remote-code-execution** flaws that affect hotpatch-manage...
Microsoft KB5084597 hotpatch for Windows 11 RRAS RCE flaws
Security Patch ReleaseAbout this happening: **Microsoft** released **KB5084597** as an **out-of-band hotpatch** for **Windows 11 Enterprise** devices, closing **RRAS remote-code-execution** flaws that affect hotpatch-manage...
Windows Autopatch enables hotpatch security updates by default for eligible devices
Security Tool/Service
H score15
First: 11.03.2026 11:15
Last: 11.03.2026 11:15
Sources 1
About this happening:
Microsoft is changing **Windows Autopatch** to enable **hotpatch security updates** by default, speeding security-fix rollout for eligible devices and reducing restart-related del...
Windows Autopatch enables hotpatch security updates by default for eligible devices
Security Tool/ServiceAbout this happening: Microsoft is changing **Windows Autopatch** to enable **hotpatch security updates** by default, speeding security-fix rollout for eligible devices and reducing restart-related del...
Timeline
-
24.02.2026 19:30 1 articles · 4mo ago
Microsoft 365 Copilot Chat work-tab bug discovered
Technical Analysis UpdateMicrosoft 365 Copilot Chat work-tab functionality was first discovered on January 21 to mistakenly access and summarize confidential emails in users' Sent Items and Drafts folders, including messages labeled confidential and intended to be protected by active data loss prevention policies.
Show sources
- Microsoft adds Copilot data controls to all storage locations — www.bleepingcomputer.com — 24.02.2026 19:30
-
24.02.2026 19:30 2 articles · 4mo ago
Microsoft expands Copilot DLP to local and cloud Office files
Mitigation Patch UpdateMicrosoft announced that Purview DLP will block Microsoft 365 Copilot from processing restricted Word, Excel, and PowerPoint documents stored on local devices, SharePoint, or OneDrive, with deployment planned through AugLoop between late March and late April 2026 and automatic enablement for organizations already configured to block Copilot from sensitivity-labeled content.
Show sources
- Microsoft adds Copilot data controls to all storage locations — www.bleepingcomputer.com — 24.02.2026 19:30
- Microsoft adds Copilot data controls to all storage locations — www.bleepingcomputer.com — 24.02.2026 19:30