Barracuda incident

O365 log ingestion issue impacting some accounts with delay and log degradation alerts.

Major Resolved View vendor source →

Barracuda experienced a major incident on September 18, 2026 affecting XDR Service, lasting 1d 11h. The incident has been resolved; the full update timeline is below.

Started
Sep 18, 2026, 03:49 PM UTC
Resolved
Sep 20, 2026, 02:51 AM UTC
Duration
1d 11h
Detected by Pingoru
Sep 18, 2026, 03:49 PM UTC

Affected components

XDR Service

Update timeline

  1. investigating Sep 18, 2026, 03:49 PM UTC

    We are experiencing an O365 log ingestion issue impacting some proportion of accounts. The affected customers have not receiving logs for the past 3 days and are seeing log degradation tickets. SRE and Data Engineering teams are actively troubleshooting the issue.

  2. identified Sep 18, 2026, 06:26 PM UTC

    Microsoft had a service issue on Sept-13 under advisory [MO1471241] which caused a backlog of logs. After restoration of MS service, the age and volumes of logs caused complications for XDR backend processing. Processing is now recovering. Affected customers may receive alerts based on older data.

  3. monitoring Sep 19, 2026, 12:35 PM UTC

    Backlogs have been processed and we are verifying recovery is complete

  4. resolved Sep 20, 2026, 02:51 AM UTC

    This incident has been resolved.