Microsoft Teams Enhances Security with External User Blocking Feature

Microsoft Teams Enhances Security with External User Blocking Feature

First seen 25 Dec 2025, 00:03 UTC •CybersecuritynewsBleepingcomputer •20.3

Article Content

Browse articles
ThreatCluster

Microsoft is introducing a new feature that allows security administrators to block external users from sending messages, calls, or meeting invitations in Microsoft Teams. This feature will integrate with Microsoft Defender for Office 365 and will be available starting in early January 2026, enabling management through the Tenant Allow/Block List in the Defender portal.

How this analysis works

Extracted Entities

1 / 2