Outage in WithSecure

Microsoft Teams- and calendar invitation links detected as malicious

Resolved Minor
December 02, 2025 - Started 14 days ago - Lasted about 2 hours
Official incident page

Incident Report

We are investigating reports of Microsoft Teams- and calendar invitation links being falsely detected as malicious.

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Latest Updates ( sorted recent to last )
RESOLVED 14 days ago - at 12/02/2025 09:41AM

The issue has been resolved.
Detections may still occur until the cache has expired.
Instructions to clear the cache in WithSecure Elements Endpoint Protection can be found here:
https://community.withsecure.com/en/kb/articles/29354-how-to-troubleshoot-security-cloud

INVESTIGATING 14 days ago - at 12/02/2025 08:12AM

We are investigating reports of Microsoft Teams- and calendar invitation links being falsely detected as malicious.

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