Updated Microsoft Defender documentation in defender-xdr/investigate-users.md.

Added Microsoft Defender documentation in defender-xdr/identity-security/identity-security-dashboard.md.

Added Microsoft Defender documentation in defender-xdr/identity-security/identity-security-overview.md.

Updated Microsoft Defender documentation in defender-xdr/identity-security/identity-security-overview.md.

Updated Microsoft Defender documentation in defender-xdr/identity-security/identity-security-overview.md.

Updated Microsoft Defender documentation in defender-xdr/identity-security/identity-security-dashboard.md.

Updated Microsoft Defender documentation in defender-xdr/identity-security/identity-security-overview.md.

Removed Microsoft Defender documentation in defender-xdr/identity-security.md.

Removed Microsoft Defender documentation in defender-xdr/identity-security-dashboard.md.

Updated Microsoft Defender documentation in defender-xdr/identity-security-dashboard.md.

Added Microsoft Defender documentation in defender-xdr/identity-security-dashboard.md.

Updated Microsoft Defender documentation in defender-xdr/identity-security.md.

Updated Microsoft Defender documentation in defender-xdr/identity-security-dashboard.md.

Updated Microsoft Defender documentation in defender-xdr/identity-security-dashboard.md.

Updated Microsoft Defender documentation in defender-xdr/identity-security.md.

Updated Microsoft Defender documentation in defender-xdr/identity-security-dashboard.md.

Updated Microsoft Defender documentation in defender-xdr/identity-security.md.

Updated Microsoft Defender documentation in defender-xdr/identity-security-dashboard.md.

Updated Microsoft Defender documentation in defender-xdr/dynamic-threat-detection-agent.md.

Updated Microsoft Defender documentation in defender-xdr/dynamic-threat-detection-agent.md.

Updated Microsoft Defender documentation in defender-xdr/phishing-triage-agent.md.

Updated Microsoft Defender documentation in defender-xdr/dynamic-threat-detection-agent.md.

Updated Microsoft Defender documentation in defender-xdr/dynamic-threat-detection-agent.md.

Updated Microsoft Defender documentation in defender-xdr/investigate-alerts.md.

Updated Microsoft Defender documentation in defender-xdr/investigate-alerts.md.

Updated Microsoft Defender documentation in defender-xdr/advanced-hunting-oauthappinfo-table.md.

Updated Microsoft Defender documentation in defender-xdr/advanced-hunting-oauthappinfo-table.md.

Updated Microsoft Defender documentation in defender-xdr/whats-new.md.

Updated Microsoft Defender documentation in defender-xdr/defender-experts-scoped-coverage.md.

Updated Microsoft Defender documentation in defender-xdr/investigate-incidents.md.

Updated Microsoft Defender documentation in defender-xdr/exclude-analytics-rules-correlation.md.

Updated Microsoft Defender documentation in defender-xdr/onboarding-defender-experts-for-hunting.md.

Updated Microsoft Defender documentation in defender-xdr/onboarding-defender-experts-for-hunting.md.

Updated Microsoft Defender documentation in defender-xdr/custom-detection-rules.md.

Updated Microsoft Defender documentation in defender-xdr/onboarding-defender-experts-for-hunting.md.

Updated Microsoft Defender documentation in defender-xdr/split-incidents-into-tasks.md.

The “Suspected identity theft (pass-the-ticket)” classic alert will retire between March 18-22, 2026, replaced by the “Pass-the-Ticket (PtT) attack” XDR alert. Existing alerts remain accessible. No admin action is required, but update workflows, alert tuning, and documentation accordingly. No compliance issues noted.

Updated Microsoft Defender documentation in defender-xdr/alert-policies.md.

Updated Microsoft Defender documentation in defender-xdr/dex-xdr-overview.md.

Updated Microsoft Defender documentation in defender-xdr/get-started-xdr.md.

Microsoft Defender for Office 365 is updating the quarantine email preview to simplify views, limit URL hover previews, and remove some "Load external content" buttons. Rollout starts November 2025, completing by mid-December. Users will see a clearer, more secure preview; no configuration changes are needed.

In March 2026, Microsoft will update Secure Score categories to improve accuracy, which may affect identity and app Secure Scores.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-endpoint-releases.md.

Updated Microsoft Defender documentation in defender-endpoint/configure-extension-file-exclusions-microsoft-defender-antivirus.md.

Updated Microsoft Defender documentation in defender-endpoint/common-exclusion-mistakes-microsoft-defender-antivirus.md.

Updated Microsoft Defender documentation in defender-endpoint/configure-server-exclusions-microsoft-defender-antivirus.md.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-endpoint-releases.md.

Updated Microsoft Defender documentation in defender-endpoint/configure-exclusions-microsoft-defender-antivirus.md.

Updated Microsoft Defender documentation in defender-endpoint/mac-device-control-overview.md.

Updated Microsoft Defender documentation in defender-endpoint/common-exclusion-mistakes-microsoft-defender-antivirus.md.

Updated Microsoft Defender documentation in defender-endpoint/android-new-ux.md.

Updated Microsoft Defender documentation in defender-endpoint/defender-compatibility.md.

Updated Microsoft Defender documentation in defender-endpoint/configure-server-exclusions-microsoft-defender-antivirus.md.

Updated Microsoft Defender documentation in defender-endpoint/customize-controlled-folders.md.

Updated Microsoft Defender documentation in defender-endpoint/indicator-ip-domain.md.

Updated Microsoft Defender documentation in defender-endpoint/whats-new-in-microsoft-defender-endpoint.md.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-antivirus-updates.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/mac-device-control-overview.md.

Updated Microsoft Defender documentation in defender-endpoint/whats-new-mde-archive.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/android-new-ux.md.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-antivirus-windows.md.

Updated Microsoft Defender documentation in defender-endpoint/release-notes-mde-archive.md.

Updated Microsoft Defender documentation in defender-endpoint/manage-outdated-endpoints-microsoft-defender-antivirus.md.

Updated Microsoft Defender documentation in defender-endpoint/manage-outdated-endpoints-microsoft-defender-antivirus.md.

Updated Microsoft Defender documentation in defender-endpoint/respond-file-alerts.md.

Updated Microsoft Defender documentation in defender-endpoint/whats-new-in-microsoft-defender-endpoint.md.

Updated Microsoft Defender documentation in defender-endpoint/device-control-policies.md.

Updated Microsoft Defender documentation in defender-endpoint/release-notes-mde-archive.md.

Updated Microsoft Defender documentation in defender-endpoint/enable-cloud-protection-microsoft-defender-antivirus.md.

Updated Microsoft Defender documentation in defender-endpoint/enable-cloud-protection-microsoft-defender-antivirus.md.

Updated Microsoft Defender documentation in defender-endpoint/indicator-file.md.

Updated Microsoft Defender documentation in defender-endpoint/manage-event-based-updates-microsoft-defender-antivirus.md.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-antivirus-compatibility.md.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-antivirus-updates.md.

Updated Microsoft Defender documentation in defender-endpoint/whats-new-mde-archive.md.

Updated Microsoft Defender documentation in defender-endpoint/whats-new-in-microsoft-defender-endpoint.md.

Updated Microsoft Defender documentation in defender-endpoint/defender-compatibility.md.

Updated Microsoft Defender documentation in defender-endpoint/configure-process-opened-file-exclusions-microsoft-defender-antivirus.md.

Updated Microsoft Defender documentation in defender-endpoint/configure-server-exclusions-microsoft-defender-antivirus.md.

Updated Microsoft Defender documentation in defender-endpoint/device-health-microsoft-defender-antivirus-health.md.

Updated Microsoft Defender documentation in defender-endpoint/manage-protection-update-schedule-microsoft-defender-antivirus.md.

Updated Microsoft Defender documentation in defender-endpoint/manage-protection-updates-microsoft-defender-antivirus.md.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-offline.md.

Updated Microsoft Defender documentation in defender-endpoint/review-scan-results-microsoft-defender-antivirus.md.

Updated Microsoft Defender documentation in defender-endpoint/run-scan-microsoft-defender-antivirus.md.

Updated Microsoft Defender documentation in defender-endpoint/schedule-antivirus-scans-wmi.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/microsoft-defender-endpoint-releases.md.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-antivirus-compatibility.md.

Updated Microsoft Defender documentation in defender-endpoint/mde-sec-ops-guide.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.

Added Microsoft Defender documentation in defender-endpoint/microsoft-defender-endpoint-releases.md.

Added Microsoft Defender documentation in defender-endpoint/release-notes-mde-archive.md.

Updated Microsoft Defender documentation in defender-endpoint/whats-new-mde-archive.md.

Added Microsoft Defender documentation in defender-endpoint/whats-new-mde-archive.md.

Updated Microsoft Defender documentation in defender-endpoint/whats-new-mde-archive.md.

Updated Microsoft Defender documentation in defender-endpoint/release-notes-mde-archive.md.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-endpoint-releases.md.

Updated Microsoft Defender documentation in defender-endpoint/whats-new-mde-archive.md.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-endpoint-versions.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/release-notes-mde-archive.md.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-endpoint-versions.md.

Updated Microsoft Defender documentation in defender-endpoint/whats-new-mde-archive.md.

Updated Microsoft Defender documentation in defender-endpoint/device-health-microsoft-defender-antivirus-health.md.

Updated Microsoft Defender documentation in defender-endpoint/whats-new-in-microsoft-defender-endpoint.md.

Updated Microsoft Defender documentation in defender-endpoint/configure-libraries-live-response.md.

Updated Microsoft Defender documentation in defender-endpoint/device-health-microsoft-defender-antivirus-health.md.

Updated Microsoft Defender documentation in defender-endpoint/release-notes-mde-archive.md.

Updated Microsoft Defender documentation in defender-endpoint/defender-compatibility.md.

Updated Microsoft Defender documentation in defender-endpoint/indicator-file.md.

Updated Microsoft Defender documentation in defender-endpoint/mac-install-with-other-mdm.md.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-antivirus-windows.md.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-endpoint-versions.md.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-endpoint-versions.md.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-endpoint-mac.md.

Updated Microsoft Defender documentation in defender-endpoint/manage-protection-update-schedule-microsoft-defender-antivirus.md.

Updated Microsoft Defender documentation in defender-endpoint/respond-file-alerts.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/mac-health-status.md.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-antivirus-updates.md.

Updated Microsoft Defender documentation in defender-endpoint/uefi-scanning-in-defender-for-endpoint.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/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/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/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/whats-new-in-microsoft-defender-endpoint.md.

Updated Microsoft Defender documentation in defender-endpoint/whats-new-mde-archive.md.

Updated Microsoft Defender documentation in defender-endpoint/device-health-microsoft-defender-antivirus-health.md.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-endpoint-releases.md.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-endpoint-versions.md.

Removed Microsoft Defender documentation in defender-endpoint/microsoft-defender-endpoint-versions.md.

Removed Microsoft Defender documentation in defender-endpoint/release-notes-archive-android.md.

Updated Microsoft Defender documentation in defender-endpoint/whats-new-in-microsoft-defender-endpoint.md.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-endpoint-versions.md.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-endpoint-versions.md.

Updated Microsoft Defender documentation in defender-endpoint/api/exposed-apis-create-app-partners.md.

Updated Microsoft Defender documentation in defender-endpoint/api/run-advanced-query-sample-python.md.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-endpoint-versions.md.

Updated Microsoft Defender documentation in defender-endpoint/api/device-health-export-antivirus-health-report-api.md.

Updated Microsoft Defender documentation in defender-endpoint/microsoft-defender-endpoint-versions.md.

Updated Microsoft Defender documentation in defender-endpoint/whats-new-in-microsoft-defender-endpoint.md.

Updated Microsoft Defender documentation in defender-endpoint/enable-network-protection.md.

Updated Microsoft Defender documentation in defender-endpoint/enable-network-protection.md.

Updated Microsoft Defender documentation in defender-endpoint/api/api-hello-world.md.

Updated Microsoft Defender documentation in defender-endpoint/api/exposed-apis-full-sample-powershell.md.

Updated Microsoft Defender documentation in defender-endpoint/api/exposed-apis-create-app-webapp.md.

Updated Microsoft Defender documentation in defender-endpoint/mac-troubleshoot-mode.md.

Updated Microsoft Defender documentation in defender-endpoint/mac-troubleshoot-netext-mde.md.

Updated Microsoft Defender documentation in defender-endpoint/troubleshoot-settings.md.

Updated Microsoft Defender documentation in defender-endpoint/onboard-server.md.

Updated Microsoft Defender documentation in defender-endpoint/onboard-server.md.

Updated Microsoft Defender documentation in defender-endpoint/attack-surface-reduction-rules-reference.md.

Updated Microsoft Defender documentation in defender-endpoint/attack-surface-reduction-rules-overview.md.

Updated Microsoft Defender documentation in defender-endpoint/whats-new-mde-archive.md.

Updated Microsoft Defender documentation in defender-office-365/defender-for-office-365-whats-new.md.

Updated Microsoft Defender documentation in defender-office-365/mdo-support-teams-about.md.

Updated Microsoft Defender documentation in defender-office-365/submissions-teams.md.

Updated Microsoft Defender documentation in defender-office-365/defender-for-office-365-whats-new.md.

Updated Microsoft Defender documentation in defender-office-365/recommended-settings-for-eop-and-office365.md.

Updated Microsoft Defender documentation in defender-office-365/recommended-settings-for-eop-and-office365.md.

Updated Microsoft Defender documentation in defender-office-365/recommended-settings-for-eop-and-office365.md.

Updated Microsoft Defender documentation in defender-office-365/recommended-settings-for-eop-and-office365.md.

Updated Microsoft Defender documentation in defender-office-365/recommended-settings-for-eop-and-office365.md.

Updated Microsoft Defender documentation in defender-office-365/recommended-settings-for-eop-and-office365.md.

Updated Microsoft Defender documentation in defender-for-identity/microsoft-365-security-center-mdi.md.

Updated Microsoft Defender documentation in defender-for-identity/understanding-security-alerts.md.

Updated Microsoft Defender documentation in defender-for-identity/security-posture-assessments/accounts.md.

Updated Microsoft Defender documentation in defender-for-identity/connect-cyberark.md.

Updated Microsoft Defender documentation in defender-for-identity/what-is.md.

Updated Microsoft Defender documentation in defender-for-identity/whats-new.md.

Updated Microsoft Defender documentation in defender-for-identity/whats-new.md.

Updated Microsoft Defender documentation in defender-for-identity/whats-new.md.

Updated Microsoft Defender documentation in defender-for-identity/connect-cyberark.md.

Updated Microsoft Defender documentation in defender-for-identity/connect-cyberark.md.

Updated Microsoft Defender documentation in defender-for-identity/defender-for-identity-cyberark-overview.md.

Updated Microsoft Defender documentation in defender-for-identity/defender-for-identity-cyberark-overview.md.

Updated Microsoft Defender documentation in defender-for-identity/whats-new.md.

Updated Microsoft Defender documentation in defender-for-identity/configure-scoped-access.md.

Updated Microsoft Defender documentation in defender-for-identity/connect-cyberark.md.

Updated Microsoft Defender documentation in defender-for-identity/whats-new.md.

Updated Microsoft Defender documentation in defender-for-identity/deploy/capacity-planning.md.

Updated Microsoft Defender documentation in defender-for-identity/connect-cyberark.md.

Updated Microsoft Defender documentation in defender-for-identity/connect-cyberark.md.

Updated Microsoft Defender documentation in defender-for-identity/deploy/directory-service-accounts.md.

Updated Microsoft Defender documentation in defender-for-identity/entity-tags.md.

Updated Microsoft Defender documentation in defender-for-identity/investigate-assets.md.

Updated Microsoft Defender documentation in defender-for-identity/what-is.md.

Updated Microsoft Defender documentation in defender-for-identity/remediation-actions.md.

Updated Microsoft Defender documentation in defender-for-identity/reports.md.

Updated Microsoft Defender documentation in defender-for-identity/role-groups.md.

Updated Microsoft Defender documentation in defender-for-identity/whats-new-archive.md.

Updated Microsoft Defender documentation in defender-for-identity/defender-for-identity-cyberark-overview.md.

Updated Microsoft Defender documentation in defender-for-identity/deploy/prerequisites-sensor-version-2.md.

Removed Microsoft Defender documentation in defender-for-identity/understand-lateral-movement-paths.md.

Updated Microsoft Defender documentation in defender-for-identity/what-is.md.

Updated Microsoft Defender documentation in defender-for-identity/zero-trust.md.

Updated Microsoft Defender documentation in defender-for-identity/okta-integration.md.

Updated Microsoft Defender documentation in defender-for-identity/alerts-xdr.md.

Updated Microsoft Defender documentation in defender-for-identity/alerts-xdr.md.

Updated Microsoft Defender documentation in defender-for-identity/whats-new.md.

Updated Microsoft Defender documentation in defender-for-identity/whats-new.md.

Updated Microsoft Defender documentation in defender-for-identity/deploy/create-directory-service-account-gmsa.md.

Updated Microsoft Defender documentation in defender-for-identity/dashboard.md.

Updated Microsoft Defender documentation in defender-for-identity/deploy/prerequisites-sensor-version-2.md.

Removed Microsoft Defender documentation in defender-for-identity/deploy/remote-calls-sam.md.

Updated Microsoft Defender documentation in defender-for-identity/understand-lateral-movement-paths.md.

Updated Microsoft Defender documentation in defender-for-identity/whats-new.md.

Updated Microsoft Defender documentation in defender-for-identity/whats-new.md.

Updated Microsoft Defender documentation in defender-for-identity/whats-new.md.

Updated Microsoft Defender documentation in defender-for-identity/whats-new.md.

Updated Microsoft Defender documentation in defender-for-identity/whats-new.md.

Updated Microsoft Defender documentation in defender-for-identity/alerts-xdr.md.

Updated Microsoft Defender documentation in defender-for-identity/alerts-xdr.md.

Updated Microsoft Defender documentation in defender-for-identity/whats-new.md.

Updated Microsoft Defender documentation in defender-for-identity/whats-new.md.

Updated Microsoft Defender documentation in defender-for-cloud-apps/cloud-discovery-anonymizer.md.

Updated Microsoft Defender documentation in defender-for-cloud-apps/app-governance-get-started.md.

Updated Microsoft Defender documentation in defender-for-cloud-apps/manage-admins.md.

Updated Microsoft Defender documentation in defender-for-cloud-apps/activity-filters-queries.md.

Updated Microsoft Defender documentation in defender-for-cloud-apps/attack-paths.md.

Updated Microsoft Defender documentation in defender-for-cloud-apps/governance-actions.md.

Updated Microsoft Defender documentation in defender-for-cloud-apps/api-files.md.

Updated Microsoft Defender documentation in defender-for-cloud-apps/api-files.md.

Updated Microsoft Defender documentation in defender-for-cloud-apps/content-inspection.md.

Updated Microsoft Defender documentation in defender-vulnerability-management/fixed-reported-inaccuracies.md.

Updated Microsoft Defender documentation in defender-vulnerability-management/fixed-reported-inaccuracies.md.

Updated Microsoft Defender documentation in defender-vulnerability-management/fixed-reported-inaccuracies.md.

Updated Microsoft Defender documentation in unified-secops-platform/cases-overview.md.

Updated Microsoft Defender documentation in unified-secops-platform/whats-new.md.

Updated Microsoft Defender documentation in unified-secops-platform/mto-distribution-profiles.md.