Microsoft 365 Message Center

Microsoft Defender for Identity will update several detections from late September to mid-October 2025 to reduce false positives and improve accuracy, lowering alert noise without requiring configuration changes. Admins should review alert volumes post-rollout and inform their security teams acco...

August Copilot readiness insights are now available in the Microsoft 365 admin center's Copilot Health page for specific admin roles. These insights help monitor and resolve configuration issues affecting Copilot, with ongoing updates planned. Admins should regularly review and address flagged is...

Starting September 2025, Microsoft Defender Antivirus will require the AVSignatureDue policy minimum to be 2 days (up from 1 day) to prevent false alerts. Organizations with settings below 2 days should update their configuration before rollout completes in mid-October 2025.

Starting with the September 2025 security update, IT admins can configure an

On November 11, 2025, Windows 11, version 23H2 (Home and Pro editions)

As of September 9, 2025, environment-level operations, such as enabling and disabling

If you are an IT admin with questions about managing and updating

Microsoft Teams is enhancing the Profile Card organization chart on Windows Desktop, Mac, and web with improved UI, easier navigation, centered individual view, fewer clicks, and new navigation buttons. Rollout starts late October 2025, enabled by default, requiring no admin action.

We are announcing the ability to use the Assign option on the

We are announcing the ability to automate journey creation by using templates,

Microsoft Defender for Office 365 will introduce message warnings in Microsoft Teams for messages containing URLs flagged as Spam, Phish, or Malware. Starting with a public preview in September 2025 and general availability in November 2025, warnings will appear for both recipients and senders, e...

Starting October 27, 2025, Office Scripts settings for Excel will move from the Microsoft 365 admin center to the Microsoft 365 Cloud Policy service. Admins must manage three specific settings there; if unchanged, they default to enabled. No compliance issues identified; review and reconfigure as...