Alert Policies
UpdatedUpdated Microsoft Defender documentation in defender-xdr/alert-policies.md.
Day in brief
Microsoft Secure Score: New recommendation for Microsoft Defender for Endpoint leads 17 Defender updates
31 March 2026 recorded 16 updated Microsoft Defender documentation changes and 1 relevant Message Center announcement. The most active areas were Office 365, Endpoint, Defender XDR.
- Microsoft Secure Score: New recommendation for Microsoft Defender for Endpoint
Defender XDR · Vulnerabilities and exposureMicrosoft Secure Score will add a new recommendation to block outbound traffic from mshta.exe in Microsoft Defender for Endpoint, starting public preview in late March 2026. This reduces risk from attacks using mshta.exe, requires admin action to enable, and impacts compliance monitoring and data access.
- Bulk email detection
Office 365 · Email and collaborationUpdated Microsoft Defender documentation in defender-office-365/anti-spam-bulk-complaint-level-bcl-about.md.
- Bulk email detection in cloud organizationsOffice 365 · Email and collaboration
Updated Microsoft Defender documentation in defender-office-365/anti-spam-bulk-complaint-level-bcl-about.md.
- Run Analyzer Linux
Endpoint · Endpoint protectionUpdated Microsoft Defender documentation in defender-endpoint/run-analyzer-linux.md.
- Tamperprotection MacosEndpoint · Endpoint protection
Updated Microsoft Defender documentation in defender-endpoint/tamperprotection-macos.md.
This period briefing was assembled from the tracked Microsoft Learn and Message Center changes.
17 updates
Microsoft Defender XDR
3 updatesAlert Policies
UpdatedUpdated Microsoft Defender documentation in defender-xdr/alert-policies.md.
Microsoft Secure Score will add a new recommendation to block outbound traffic from mshta.exe in Microsoft Defender for Endpoint, starting public preview in late March 2026. This reduces risk from attacks using mshta.exe, requires admin action to enable, and impacts compliance monitoring and data access.
Microsoft Defender for Endpoint
4 updatesRun Analyzer Linux
UpdatedUpdated Microsoft Defender documentation in defender-endpoint/run-analyzer-linux.md.
Tamperprotection Macos
UpdatedUpdated Microsoft Defender documentation in defender-endpoint/tamperprotection-macos.md.
Run Analyzer Linux
UpdatedUpdated Microsoft Defender documentation in defender-endpoint/run-analyzer-linux.md.
Run Analyzer Linux
UpdatedUpdated Microsoft Defender documentation in defender-endpoint/run-analyzer-linux.md.
Microsoft Defender for Office 365
10 updatesBulk email detection
UpdatedUpdated Microsoft Defender documentation in defender-office-365/anti-spam-bulk-complaint-level-bcl-about.md.
Updated Microsoft Defender documentation in defender-office-365/anti-spam-bulk-complaint-level-bcl-about.md.
Updated Microsoft Defender documentation in defender-office-365/anti-spam-bulk-complaint-level-bcl-about.md.
Anti Spam Policies Configure
UpdatedUpdated Microsoft Defender documentation in defender-office-365/anti-spam-policies-configure.md.
Anti Spam Protection About
UpdatedUpdated Microsoft Defender documentation in defender-office-365/anti-spam-protection-about.md.
Updated Microsoft Defender documentation in defender-office-365/recommended-settings-for-eop-and-office365.md.
Anti Spam Policies Configure
UpdatedUpdated Microsoft Defender documentation in defender-office-365/anti-spam-policies-configure.md.
Anti Spam Protection About
UpdatedUpdated Microsoft Defender documentation in defender-office-365/anti-spam-protection-about.md.
Updated Microsoft Defender documentation in defender-office-365/recommended-settings-for-eop-and-office365.md.
Updated Microsoft Defender documentation in defender-office-365/tenant-allow-block-list-email-spoof-configure.md.