Updated Microsoft Defender documentation in defender-xdr/security-copilot-in-microsoft-365-defender.md.
Day in brief
Microsoft Security Copilot and Chat in Microsoft Defender leads 116 Defender updates
4 May 2026 recorded 2 new, 109 updated, 5 removed Microsoft Defender documentation changes. The most active areas were Identity, Endpoint, Defender XDR.
- Microsoft Security Copilot and Chat in Microsoft Defender
Defender XDR · GeneralUpdated Microsoft Defender documentation in defender-xdr/security-copilot-in-microsoft-365-defender.md.
- Migrate To Sensor V3
Identity · Identity protectionUpdated Microsoft Defender documentation in defender-for-identity/deploy/migrate-to-sensor-v3.md.
- Fixed Reported Inaccuracies
Vulnerability Management · GeneralUpdated Microsoft Defender documentation in defender-vulnerability-management/fixed-reported-inaccuracies.md.
- Automate Incident Handling With Automation Rules
Sentinel · Incidents and responseUpdated Microsoft Defender documentation in sentinel/automate-incident-handling-with-automation-rules.md.
- Attack Surface Reduction Rules Overview
Endpoint · Vulnerabilities and exposureUpdated Microsoft Defender documentation in defender-endpoint/attack-surface-reduction-rules-overview.md.
This period briefing was assembled from the tracked Microsoft Learn and Message Center changes.
116 updates
Microsoft Defender XDR
15 updatesUpdated Microsoft Defender documentation in defender-xdr/security-copilot-in-microsoft-365-defender.md.
Updated Microsoft Defender documentation in defender-xdr/security-copilot-in-microsoft-365-defender.md.
Added Microsoft Defender documentation in defender-xdr/defender-responsible-ai-faq.md.
Investigate Users
UpdatedUpdated Microsoft Defender documentation in defender-xdr/investigate-users.md.
Manage Rbac
UpdatedUpdated Microsoft Defender documentation in defender-xdr/manage-rbac.md.
Investigate Users
UpdatedUpdated Microsoft Defender documentation in defender-xdr/investigate-users.md.
Defender Responsible Ai Faq
RemovedRemoved Microsoft Defender documentation in defender-xdr/defender-responsible-ai-faq.md.
Defender Responsible Ai Faq
RemovedRemoved Microsoft Defender documentation in defender-xdr/defender-responsible-ai-faq.md.
Compare Rbac Roles
UpdatedUpdated Microsoft Defender documentation in defender-xdr/compare-rbac-roles.md.
Updated Microsoft Defender documentation in defender-xdr/application-card-copilot-defender.md.
Updated Microsoft Defender documentation in defender-xdr/application-card-copilot-defender.md.
Updated Microsoft Defender documentation in defender-xdr/application-card-copilot-defender.md.
Updated Microsoft Defender documentation in defender-xdr/pilot-deploy-defender-identity.md.
Privacy Defender Agent 365
UpdatedUpdated Microsoft Defender documentation in defender-xdr/security-for-ai/privacy-defender-agent-365.md.
Microsoft Defender for Endpoint
22 updates
Updated Microsoft Defender documentation in defender-endpoint/schedule-antivirus-scan-crontab.md.
Updated Microsoft Defender documentation in defender-endpoint/restrict-response-actions-high-value-assets.md.
Updated Microsoft Defender documentation in defender-endpoint/schedule-antivirus-scan-crontab.md.
Updated Microsoft Defender documentation in defender-endpoint/schedule-antivirus-scan-crontab.md.
Updated Microsoft Defender documentation in defender-endpoint/restrict-response-actions-high-value-assets.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/defender-deployment-tool-windows.md.
Updated Microsoft Defender documentation in defender-endpoint/restrict-response-actions-high-value-assets.md.
Updated Microsoft Defender documentation in defender-endpoint/restrict-response-actions-high-value-assets.md.
Updated Microsoft Defender documentation in defender-endpoint/defender-deployment-tool-windows.md.
Managing Exclusions
UpdatedUpdated Microsoft Defender documentation in defender-endpoint/managing-exclusions.md.
Mde P1 Setup Configuration
UpdatedUpdated Microsoft Defender documentation in defender-endpoint/mde-p1-setup-configuration.md.
Updated Microsoft Defender documentation in defender-endpoint/defender-deployment-tool-windows.md.
Updated Microsoft Defender documentation in defender-endpoint/defender-deployment-tool-windows.md.
Updated Microsoft Defender documentation in defender-endpoint/restrict-response-actions-high-value-assets.md.
Updated Microsoft Defender documentation in defender-endpoint/restrict-response-actions-high-value-assets.md.
Switch To Mde Phase 2
UpdatedUpdated Microsoft Defender documentation in defender-endpoint/switch-to-mde-phase-2.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/defender-deployment-tool-windows.md.
Updated Microsoft Defender documentation in defender-endpoint/attack-surface-reduction-rules-overview.md.
Microsoft Defender for Identity
70 updatesMigrate To Sensor V3
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/migrate-to-sensor-v3.md.
Migrate To Sensor V3
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/migrate-to-sensor-v3.md.
Migrate To Sensor V3
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/migrate-to-sensor-v3.md.
Migrate From Ata Overview
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/migrate-from-ata-overview.md.
Migrate To Sensor V3
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/migrate-to-sensor-v3.md.
Migrate To Sensor V3
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/migrate-to-sensor-v3.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/configure-windows-event-collection.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/install-sensor.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/deploy-defender-identity.md.
Sensor Settings
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/sensor-settings.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/configure-windows-event-collection.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/prerequisites-sensor-version-2.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/install-sensor.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/active-directory-federation-services.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/configure-windows-event-collection.md.
Updated Microsoft Defender documentation in defender-for-identity/whats-new.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/active-directory-federation-services.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/configure-windows-event-collection.md.
Directory Service Accounts
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/directory-service-accounts.md.
Manage Action Accounts
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/manage-action-accounts.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/prerequisites-sensor-version-2.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/configure-event-forwarding.md.
Health Alerts
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/health-alerts.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/prerequisites-sensor-version-2.md.
Sensor Settings
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/sensor-settings.md.
Activate Sensor
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/activate-sensor.md.
Activate Sensor
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/activate-sensor.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/activate-sensor.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/activate-sensor.md.
Configure Event Collection
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/configure-event-collection.md.
Configure Port Mirroring
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/configure-port-mirroring.md.
Configure Sensor Settings
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/configure-sensor-settings.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/active-directory-federation-services.md.
Directory Service Accounts
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/directory-service-accounts.md.
Directory Service Accounts
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/directory-service-accounts.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/directory-service-accounts.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/install-sensor.md.
Health Alerts
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/health-alerts.md.
Manage Action Accounts
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/manage-action-accounts.md.
Manage Action Accounts
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/manage-action-accounts.md.
Nnr Policy
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/nnr-policy.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/prerequisites-sensor-version-3.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/prerequisites-sensor-version-3.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/prerequisites-sensor-version-3.md.
Prerequisites Standalone
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/prerequisites-standalone.md.
Test Connectivity
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/test-connectivity.md.
Troubleshooting Known Issues
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/troubleshooting-known-issues.md.
Troubleshooting Known Issues
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/troubleshooting-known-issues.md.
Troubleshooting Using Logs
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/troubleshooting-using-logs.md.
Whats New Archive
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/whats-new-archive.md.
Download Sensor
RemovedRemoved Microsoft Defender documentation in defender-for-identity/deploy/download-sensor.md.
Event Collection Overview
RemovedRemoved Microsoft Defender documentation in defender-for-identity/deploy/event-collection-overview.md.
Removed Microsoft Defender documentation in defender-for-identity/deploy/prerequisites-sensor-version-3.md.
Added Microsoft Defender documentation in defender-for-identity/deploy/deploy-sensor-v3.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/deploy-sensor-v3.md.
Deploy Sensor V3
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/deploy-sensor-v3.md.
Deploy Defender Identity
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/deploy-defender-identity.md.
Updated Microsoft Defender documentation in defender-for-identity/deploy/deploy-defender-identity.md.
Deploy Sensor V3
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/deploy-sensor-v3.md.
Deploy Defender Identity
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/deploy-defender-identity.md.
Deploy Defender Identity
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/deploy-defender-identity.md.
Deploy Sensor V3
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/deploy-sensor-v3.md.
Deploy Defender Identity
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/deploy-defender-identity.md.
Deploy Defender Identity
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/deploy-defender-identity.md.
Deploy Defender Identity
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/deploy-defender-identity.md.
Deploy Sensor V3
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/deploy-sensor-v3.md.
Deploy Sensor V3
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/deploy-sensor-v3.md.
Deploy Sensor V3
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/deploy-sensor-v3.md.
Deploy Sensor V3
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/deploy/deploy-sensor-v3.md.
Whats New
UpdatedUpdated Microsoft Defender documentation in defender-for-identity/whats-new.md.
Microsoft Sentinel
7 updates
Updated Microsoft Defender documentation in sentinel/microsoft-sentinel-defender-portal.md.
Investigate Incidents
UpdatedUpdated Microsoft Defender documentation in sentinel/investigate-incidents.md.
Updated Microsoft Defender documentation in sentinel/scoping.md.
Investigate Incidents
UpdatedUpdated Microsoft Defender documentation in sentinel/investigate-incidents.md.
Updated Microsoft Defender documentation in sentinel/microsoft-sentinel-defender-portal.md.
Deploy Overview
UpdatedUpdated Microsoft Defender documentation in sentinel/deploy-overview.md.
Updated Microsoft Defender documentation in sentinel/automate-incident-handling-with-automation-rules.md.
Fixed Reported Inaccuracies
UpdatedUpdated Microsoft Defender documentation in defender-vulnerability-management/fixed-reported-inaccuracies.md.
Plan
UpdatedUpdated Microsoft Defender documentation in unified-secops-platform/overview-plan.md.