Atera incident
Atera MSI installer flagged as a false positive by Microsoft Defender
Resolved after 5 hours 24 minutes, affecting Agents Health, on September 11, 2025.
Fix: This issue has been fully resolved in collaboration with Microsoft. Action Required: You can now safely download and install the latest MSI installer
Affected components
Update timeline
- investigating Sep 11, 2025, 07:40 AM UTC
We are aware that Microsoft Defender is incorrectly flagging the MSI installers as false positives, which may temporarily prevent new agents from being installed or downloaded. Our team is already working directly with Microsoft to get this resolved as a top priority. We'll be sure to provide another update as soon as a fix is available. We appreciate your patience and apologize for any inconvenience this has caused.
- monitoring Sep 11, 2025, 08:12 AM UTC
A fix has been implemented and we are monitoring the results.
- resolved Sep 11, 2025, 01:04 PM UTC
Fix: This issue has been fully resolved in collaboration with Microsoft. Action Required: You can now safely download and install the latest MSI installer
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