M365 Archive

RM571298 - Microsoft Teams: Customize blocked file extensions for Weaponizable File Protection

Microsoft 365 Roadmap

Summary

Microsoft Teams is expanding admin controls for Weaponizable File Protection. Administrators will be able to customize which file types are blocked in Teams to align with their organization's security requirements or continue using the Microsoft-recommended default list. This added flexibility helps organizations tailor file protection policies while maintaining a secure collaboration environment.

Roadmap ID

571298

View in M365 Roadmap

Last Updated

Sep 17, 2026

Published Sep 16, 2026

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Status

In development

Release

General Availability
Targeted Release

Platforms

Android
Desktop
iOS
Mac
Web

Service

Microsoft Teams

Tag

In development
General Availability
Targeted Release
Worldwide (Standard Multi-Tenant)

Cloud

Worldwide (Standard Multi-Tenant)

Description

Microsoft Teams is expanding admin controls for Weaponizable File Protection. Administrators will be able to customize which file types are blocked in Teams to align with their organization's security requirements or continue using the Microsoft-recommended default list. This added flexibility helps organizations tailor file protection policies while maintaining a secure collaboration environment.

GA date: November CY2026

Version history

2 versions tracked

Updated 1 time since Sep 16, 2026. Microsoft Message Center only ever shows the current version; this archive preserves the history.

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  1. Sep 17, 2026 · 11:00 PMLatest · v2

    Changed: No tracked field changed

  2. Sep 16, 2026 · 10:57 PMOriginal · v1

    Changed: Initial version

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