Microsoft revealed recently that it is currently working to enhance protection against dangerous file formats and malicious URLs within Teams chats and channels.
“Microsoft Teams now blocks messages containing weaponizable file types, such as executables, in chats and channels, increasing protection against malware and other file-based attacks,” The company Microsoft 365 Roadmap Update this week said . It added as a separate entry. Both features are in development and will be rolled out globally across standard Microsoft 365 Multi-tenants by next month.
The company announced on Monday in the Microsoft 365 Message Center, that Teams now integrates with the Microsoft Defender Office 365 Tenant Allow/Block list, enabling security admins to block incoming communication (chats and channels, meetings and calls) from banned domains. Security admins can also delete existing communications sent by users in blocked domains, and manage blocked external domains via the Microsoft Defender portal.
The feature is currently in a targeted release and will be available worldwide by the end of September 2025.
Microsoft announced earlier this year that it would roll out another Teams feature in July 2025. This feature will prevent users from taking screenshots of sensitive data shared during meetings. It said. In January, Microsoft 365 administrators were reminded that the new Teams Chat brand impersonation feature, which alerts users to phishing attacks targeting organizations who have external Teams access enabled will be available for all customers by mid February 2025. Redmond announced at the Enterprise Connect conference last year
that Teams reached over 320 millions monthly active users in 181 markets and 44 different languages.
