Microsoft Teams is finally boosting security controls to let admins block custom file extensions
- Weaponizable File Protection is getting more custom controls months after launching
- Teams has become an attractive environment for attackers lately
- Microsoft is set to add plenty of new features, too
Microsoft has announced an upgrade to its Weaponizable File Protection feature within Teams, which now means admins can control which types of files users can send through the workplace collaboration app to prevent the likelihood of spreading malware and other malicious files.
Weaponizable File Protection is a tool that's already been rolled out to Teams, but previously, it only automatically scanned for potentially dangerous attachments.
The automated part of the tool began rolling out in early 2026 after an earlier preview from a roadmap entry, and it's another roadmap entry that shows us what we can expect moving forward.
Teams admins can now block certain file types
"Administrators will be able to customize which file types are blocked in Teams...
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