Tessian EU incident

Delays in Outbound Security Events Being Available in the Portal

Resolved after 2 hours 3 minutes, affecting Proofpoint Portal and Proofpoint API, on May 16, 2026.

resolved May 16, 2026, 03:52 PM UTC

As of May 16th 2026, 15:45UTC - We've confirmed the corrective actions have lead to recovery. Adaptive Email DLP Security Events from 08:00 UTC to 15:45 UTC now show in the Security Events tab of customer portals, and calling the external API will now returns events from those time periods. Thank you for your patience, and feel free to open a support case with any follow up questions.

Started
May 16, 2026, 01:49 PM UTC
Resolved
May 16, 2026, 03:52 PM UTC
Duration
2h 3m
Detected by Pingoru
May 16, 2026, 01:49 PM UTC

Affected components

Proofpoint PortalProofpoint API

Update timeline

  1. investigating May 16, 2026, 01:49 PM UTC

    We're investigating reports of Adaptive Email DLP Events being delayed showing in the portal and external API after todays Maintenance window. Checks are still being completed, actioned, and recorded. The team is working to restore full functionality.

  2. identified May 16, 2026, 03:33 PM UTC

    We have identified the issue and applied a fix and are seeing signs of recovery.

  3. resolved May 16, 2026, 03:52 PM UTC

    As of May 16th 2026, 15:45UTC - We've confirmed the corrective actions have lead to recovery. Adaptive Email DLP Security Events from 08:00 UTC to 15:45 UTC now show in the Security Events tab of customer portals, and calling the external API will now returns events from those time periods. Thank you for your patience, and feel free to open a support case with any follow up questions.

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