Microsoft Teams will soon let administrators customize the file extensions blocked by Weaponizable File Protection, giving organizations more control over which attachments are treated as high-risk. Microsoft is also adding several other Teams security features to help defend against phishing, fraud, external bots, and social engineering attacks. #MicrosoftTeams #WeaponizableFileProtection #Defender #phishing #guestinvitations
Keypoints
- Admins will be able to customize blocked file types in Teams.
- Weaponizable File Protection scans chats and blocks risky attachments.
- The update is scheduled to begin rolling out in November 2026.
- Microsoft is adding tools to block external users and suspicious guest invitations.
- Teams will also get protection against phishing, fraud, and external bots.