Abnormal Security incident
Inbound Email Security Detection and Remediation Disruption
Abnormal Security experienced a major incident on June 2, 2026 affecting Inbound Email Security (IES) and AI Security Mailbox (AISM), lasting 35m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Jun 02, 2026, 06:08 PM UTC
Starting at 17:45 UTC on June 2, 2026, Abnormal began experiencing a service disruption affecting email scoring, detection, and remediation for Inbound Email Security in the EU region. EU customers may experience emails not being analyzed or remediated during this time. The engineering team is actively investigating and working to restore full functionality. The next update will be provided within 1 hour or sooner as more information becomes available.
- monitoring Jun 02, 2026, 06:26 PM UTC
Starting at 17:45 UTC on June 2, 2026, Abnormal experienced a service disruption affecting email detection and remediation for Inbound Email Security customers in the EU region. Additionally, between 18:00 UTC and 19:00 UTC, US customers experienced degraded attack detection and AI Security Mailbox functionality. Abnormal is now beginning to see recovery across impacted services. The engineering team continues to monitor as systems restore to full operational capacity. Any emails from the impacted window will be reprocessed. A further update will be provided once full recovery is confirmed.
- resolved Jun 02, 2026, 06:43 PM UTC
Starting at 17:45 UTC on June 2, 2026, Abnormal experienced a service disruption affecting email detection and remediation for Inbound Email Security customers in the EU region. Additionally, between 18:00 UTC and 19:00 UTC, US customers experienced degraded AI Security Mailbox functionality. As of 19:20 UTC, all services have been restored and live traffic is processing normally across both regions. Abnormal is continuing to work through retry queues to reprocess any emails from the impacted window. If you experience any further issues, please reach out to our support team at [email protected].