Updated Microsoft Defender documentation in defender-xdr/custom-detection-rules.md.
Day in brief
Troubleshoot attack surface reduction rules leads 14 Defender updates
20 March 2026 recorded 14 updated Microsoft Defender documentation changes. The most active areas were Endpoint, Defender XDR.
- Troubleshoot attack surface reduction rules
Endpoint · TroubleshootingUpdated Microsoft Defender documentation in defender-endpoint/troubleshoot-asr.md.
- Create custom detection rules
Defender XDR · Hunting and detectionUpdated Microsoft Defender documentation in defender-xdr/custom-detection-rules.md.
- Advanced Hunting GraphDefender XDR · Hunting and detection
Updated Microsoft Defender documentation in defender-xdr/advanced-hunting-graph.md.
- Custom Detection RulesDefender XDR · Hunting and detection
Updated Microsoft Defender documentation in defender-xdr/custom-detection-rules.md.
- Troubleshoot attack surface reduction rulesEndpoint · Troubleshooting
Updated Microsoft Defender documentation in defender-endpoint/troubleshoot-asr.md.
This period briefing was assembled from the tracked Microsoft Learn and Message Center changes.
14 updates
Microsoft Defender XDR
3 updatesAdvanced Hunting Graph
UpdatedUpdated Microsoft Defender documentation in defender-xdr/advanced-hunting-graph.md.
Custom Detection Rules
UpdatedUpdated Microsoft Defender documentation in defender-xdr/custom-detection-rules.md.
Microsoft Defender for Endpoint
11 updates
Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-endpoint-releases.md.
Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-endpoint-releases.md.
Linux Install Manually
UpdatedUpdated Microsoft Defender documentation in defender-endpoint/linux-install-manually.md.
Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-endpoint-releases.md.
Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-endpoint-releases.md.
Updated Microsoft Defender documentation in defender-endpoint/whats-new-in-microsoft-defender-endpoint.md.
Updated Microsoft Defender documentation in defender-endpoint/whats-new-in-microsoft-defender-endpoint.md.
Updated Microsoft Defender documentation in defender-endpoint/linux-install-manually.md.
Updated Microsoft Defender documentation in defender-endpoint/linux-install-manually.md.
Updated Microsoft Defender documentation in defender-endpoint/troubleshoot-asr.md.
Updated Microsoft Defender documentation in defender-endpoint/troubleshoot-asr.md.