Microsoft Defender for Office 365 will enhance the Teams message entity flyout by late September 2026, enabling security admins to submit messages to Microsoft and block senders or domains in one workflow. This streamlines Teams message investigations for Plan 1 and Plan 2 customers without requiring configuration changes.
Day in brief
Teams message flyout will combine Microsoft submission and sender blocking by late September
Microsoft Defender for Office 365 will enhance the Teams message entity flyout by late September 2026. Security admins will be able to submit messages to Microsoft and block senders or domains within one workflow, covering Plan 1 and Plan 2 customers without configuration changes.
- Teams message entity flyout gains remediation actions
Defender XDR · Email and collaborationThe enhanced flyout will let security admins submit a Teams message to Microsoft and block its sender or domain from the same workflow. The change is planned for late September 2026 and applies to Defender for Office 365 Plan 1 and Plan 2 customers.
This period briefing was generated by AI from the tracked Microsoft Learn and Message Center changes.
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