Abnormal Security incident
Email Protection Service Disruption for US Customers
Abnormal Security experienced a major incident on September 9, 2025 affecting Inbound Email Security (IES), lasting 5h 25m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- identified Sep 09, 2025, 10:16 PM UTC
Starting around 13:00 UTC on September 9, 2025, Abnormal experienced a service disruption affecting email protection for some US customer mailboxes across Office 365 and Google Workspace environments. During this time, affected mailboxes experienced interrupted email security monitoring and protection services. Abnormal's engineering team has identified the issue and is currently working to deploy a fix to impacted mailboxes. The next update will be provided in 1 hour or when further information is available.
- identified Sep 09, 2025, 11:25 PM UTC
Abnormal is beginning to see service recovery, and our engineering team continues working toward full resolution. Once completely resolved, all emails from affected mailboxes will be automatically reprocessed to ensure complete security coverage. The next update will be provided when further information is available.
- monitoring Sep 10, 2025, 12:50 AM UTC
Abnormal continues to see progress toward full recovery for impacted mailboxes. The recovery process is expected to continue for several hours. An update will be provided once email protection services have been fully restored for all affected mailboxes.
- resolved Sep 10, 2025, 03:41 AM UTC
All impacted mailboxes have been fully recovered and email protection services are now fully functional. If customers experience any issues with mailbox protection services, please contact support at [email protected].