Week in brief

Customer intent: As a threat hunter, security engineer or an security administrator, I want to manage KQL, notebook and graph jobs in the Microsoft S… leads 154 Defender updates

Week of 8 June 2026 recorded 1 new, 148 updated, 3 removed Microsoft Defender documentation changes and 2 relevant Message Center announcements. The most active areas were Endpoint, Office 365, Defender XDR.

For Defender administrators

Review the linked Microsoft Learn changes that apply to your managed platforms, policies, applications, and rollout plans. The archive preserves the source diff for verification.

This period briefing was assembled from the tracked Microsoft Learn and Message Center changes.

Updates this week

10

Activate Defender Rbac

Updated

Updated Microsoft Defender documentation in defender-xdr/activate-defender-rbac.md.

14 June 2026

Additional Information Xdr

Updated

Updated Microsoft Defender documentation in defender-xdr/additional-information-xdr.md.

14 June 2026

Security Upload Guide

Updated

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

11 June 2026

Whats New

Updated

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

11 June 2026

Whats New

Updated

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

11 June 2026
8
2
1

CloudProcessEvents

Updated

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

11 June 2026
1

Microsoft Defender for Endpoint: Update to Linux connectivity requirements with new service URLs to allowlist

New

Microsoft Defender for Endpoint on Linux now requires allowlisting new service URLs specific to tenant types for delivering internal configuration updates, feature rollouts, and critical issue mitigations. This update is available worldwide, with no change to user experience, and ensures devices receive the latest features and optimizations.

12 June 2026
Message CenterMC1388718 on mc.merill.net ↗Plan for change
1
1

Microsoft Secure Score: New recommendation to reduce inbound internet exposure

New

Microsoft Secure Score in Microsoft Defender for Endpoint introduces a new default recommendation to reduce unnecessary inbound internet exposure by identifying internet-facing devices. Rolling out from June 2026, it helps admins validate and remediate exposure risks, improving enterprise security posture with no user impact or required configuration.

9 June 2026
Message CenterMC1358832 on mc.merill.net ↗Stay informed
54

Migrate Devices Streamlined

Updated

Updated Microsoft Defender documentation in defender-endpoint/migrate-devices-streamlined.md.

14 June 2026

Partner Integration

Updated

Updated Microsoft Defender documentation in defender-endpoint/partner-integration.md.

14 June 2026

Network Protection Macos

Updated

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

14 June 2026

Configure Siem

Updated

Updated Microsoft Defender documentation in defender-endpoint/configure-siem.md.

14 June 2026

Configure Endpoints Script

Updated

Updated Microsoft Defender documentation in defender-endpoint/configure-endpoints-script.md.

14 June 2026

Investigate Behind Proxy

Updated

Updated Microsoft Defender documentation in defender-endpoint/investigate-behind-proxy.md.

14 June 2026

Linux Pua

Updated

Updated Microsoft Defender documentation in defender-endpoint/linux-pua.md.

14 June 2026

Mde Linux Prerequisites

Updated

Updated Microsoft Defender documentation in defender-endpoint/mde-linux-prerequisites.md.

14 June 2026

Behavior Monitor

Updated

Updated Microsoft Defender documentation in defender-endpoint/behavior-monitor.md.

14 June 2026

Configure Endpoints Gp

Updated

Updated Microsoft Defender documentation in defender-endpoint/configure-endpoints-gp.md.

14 June 2026

Data Storage Privacy

Updated

Updated Microsoft Defender documentation in defender-endpoint/data-storage-privacy.md.

14 June 2026

Device Control Report

Updated

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

14 June 2026

Enable Troubleshooting Mode

Updated

Updated Microsoft Defender documentation in defender-endpoint/enable-troubleshooting-mode.md.

14 June 2026

Evaluate Mdav Using Gp

Updated

Updated Microsoft Defender documentation in defender-endpoint/evaluate-mdav-using-gp.md.

14 June 2026

Linux Install Manually

Updated

Updated Microsoft Defender documentation in defender-endpoint/linux-install-manually.md.

14 June 2026

Linux Installer Script

Updated

Updated Microsoft Defender documentation in defender-endpoint/linux-installer-script.md.

14 June 2026

Mde Sec Ops Guide

Updated

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

14 June 2026

Professional Services

Removed

Removed Microsoft Defender documentation in defender-endpoint/professional-services.md.

14 June 2026

Mde Linux Prerequisites

Updated

Updated Microsoft Defender documentation in defender-endpoint/mde-linux-prerequisites.md.

12 June 2026

Mde Linux Prerequisites

Updated

Updated Microsoft Defender documentation in defender-endpoint/mde-linux-prerequisites.md.

12 June 2026

Mde Linux Prerequisites

Updated

Updated Microsoft Defender documentation in defender-endpoint/mde-linux-prerequisites.md.

12 June 2026

Mde Linux Prerequisites

Updated

Updated Microsoft Defender documentation in defender-endpoint/mde-linux-prerequisites.md.

12 June 2026

Mde Linux Prerequisites

Updated

Updated Microsoft Defender documentation in defender-endpoint/mde-linux-prerequisites.md.

12 June 2026

Mde Linux Prerequisites

Updated

Updated Microsoft Defender documentation in defender-endpoint/mde-linux-prerequisites.md.

12 June 2026

Mde Linux Prerequisites

Updated

Updated Microsoft Defender documentation in defender-endpoint/mde-linux-prerequisites.md.

12 June 2026

Mde Linux Prerequisites

Updated

Updated Microsoft Defender documentation in defender-endpoint/mde-linux-prerequisites.md.

12 June 2026

Whats New Mde Archive

Updated

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

11 June 2026

Mde Linux Prerequisites

Updated

Updated Microsoft Defender documentation in defender-endpoint/mde-linux-prerequisites.md.

10 June 2026
2
1
1

Advanced Features

Updated

Updated Microsoft Defender documentation in defender-endpoint/advanced-features.md.

14 June 2026
1

Fix Unhealthy Sensors

Updated

Updated Microsoft Defender documentation in defender-endpoint/fix-unhealthy-sensors.md.

14 June 2026
26

Anti Malware Protection About

Updated

Updated Microsoft Defender documentation in defender-office-365/anti-malware-protection-about.md.

12 June 2026

Mdo Sec Ops Guide

Updated

Updated Microsoft Defender documentation in defender-office-365/mdo-sec-ops-guide.md.

11 June 2026

Anti Malware Protection About

Updated

Updated Microsoft Defender documentation in defender-office-365/anti-malware-protection-about.md.

11 June 2026

Campaigns

Updated

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

11 June 2026

Defense In Depth Guide

Updated

Updated Microsoft Defender documentation in defender-office-365/step-by-step-guides/defense-in-depth-guide.md.

11 June 2026

Mdo About

Updated

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

11 June 2026

Mdo Portal Permissions

Updated

Updated Microsoft Defender documentation in defender-office-365/mdo-portal-permissions.md.

11 June 2026

Mdo Privacy

Updated

Updated Microsoft Defender documentation in defender-office-365/mdo-privacy.md.

11 June 2026

Office 365 Ti

Updated

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

11 June 2026

Siem Server Integration

Updated

Updated Microsoft Defender documentation in defender-office-365/siem-server-integration.md.

11 June 2026

Step By Step Guide Overview

Updated

Updated Microsoft Defender documentation in defender-office-365/step-by-step-guides/step-by-step-guide-overview.md.

11 June 2026

Submissions Admin

Updated

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

11 June 2026
1
9

Accounts

Updated

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

14 June 2026

Ops Guide Daily

Updated

Updated Microsoft Defender documentation in defender-for-identity/ops-guide/ops-guide-daily.md.

14 June 2026

Ops Guide Weekly

Updated

Updated Microsoft Defender documentation in defender-for-identity/ops-guide/ops-guide-weekly.md.

14 June 2026

Ops Guide Monthly

Updated

Updated Microsoft Defender documentation in defender-for-identity/ops-guide/ops-guide-monthly.md.

14 June 2026

Ops Guide Quarterly

Updated

Updated Microsoft Defender documentation in defender-for-identity/ops-guide/ops-guide-quarterly.md.

14 June 2026

Multi Forest

Updated

Updated Microsoft Defender documentation in defender-for-identity/deploy/multi-forest.md.

14 June 2026

Ops Guide

Updated

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

14 June 2026

Test Sensor

Updated

Updated Microsoft Defender documentation in defender-for-identity/deploy/test-sensor.md.

14 June 2026
10

Ops Guide Daily

Updated

Updated Microsoft Defender documentation in defender-for-cloud-apps/ops-guide/ops-guide-daily.md.

14 June 2026

Troubleshooting Proxy

Updated

Updated Microsoft Defender documentation in defender-for-cloud-apps/troubleshooting-proxy.md.

14 June 2026

Ops Guide Weekly

Updated

Updated Microsoft Defender documentation in defender-for-cloud-apps/ops-guide/ops-guide-weekly.md.

14 June 2026

Zero Trust

Updated

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

14 June 2026

Ops Guide

Updated

Updated Microsoft Defender documentation in defender-for-cloud-apps/ops-guide/ops-guide.md.

14 June 2026

Ops Guide Ad Hoc

Updated

Updated Microsoft Defender documentation in defender-for-cloud-apps/ops-guide/ops-guide-ad-hoc.md.

14 June 2026

Session Policy Aad

Updated

Updated Microsoft Defender documentation in defender-for-cloud-apps/session-policy-aad.md.

14 June 2026

Tutorial Suspicious Activity

Updated

Updated Microsoft Defender documentation in defender-for-cloud-apps/tutorial-suspicious-activity.md.

14 June 2026

User Groups

Updated

Updated Microsoft Defender documentation in defender-for-cloud-apps/user-groups.md.

14 June 2026
4

Cef Syslog Ama Overview

Updated

Updated Microsoft Defender documentation in sentinel/cef-syslog-ama-overview.md.

11 June 2026
1
2
2

Fixed Reported Inaccuracies

Updated

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

14 June 2026
2

Tvm Security Recommendation

Updated

Updated Microsoft Defender documentation in defender-vulnerability-management/tvm-security-recommendation.md.

14 June 2026

Tvm Security Recommendation

Updated

Updated Microsoft Defender documentation in defender-vulnerability-management/tvm-security-recommendation.md.

11 June 2026
10

Mdb Tutorials

Updated

Updated Microsoft Defender documentation in defender-business/mdb-tutorials.md.

11 June 2026
2

Mdb Streaming Api

Updated

Updated Microsoft Defender documentation in defender-business/mdb-streaming-api.md.

11 June 2026
1
1