SECURITYQUIET
28 days ago · Global
Microsoft Teams will let admins block custom file extensions
SIGNALSMONITORSECURITY
What's happening
SignalsMonitor is following this as a security story. BleepingComputer is the outlet attached so far. The reports are tied to Global. The first report grouped here was at 18 Sept 2026, 13:58 UTC. The headline in use is “Microsoft Teams will let admins block custom file extensions”. This note is SignalsMonitor's own briefing, not the publisher's article.
What we know
Microsoft Teams will soon let administrators tweak the list of file extensions commonly associated with security threats to meet their company's security requirements. [...
BleepingComputerRead at BleepingComputer
Story timeline
Reports grouped into this story, earliest first. Exact repeats from the same outlet are collapsed.
- First reported by BleepingComputer
Microsoft Teams will let admins block custom file extensions
Reported by 1 outlet
- BleepingComputer
- BleepingComputerMicrosoft Teams will let admins block custom file extensions