Major incident

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

Affected: XDR Service

Current status of Barracuda Networks: Minor issues — live Barracuda Networks status

Timeline

1. Sep 18, 2026, 15:49 UTC
   investigating
   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. Sep 18, 2026, 18:26 UTC
   identified
   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. Sep 19, 2026, 12:35 UTC
   monitoring
   Backlogs have been processed and we are verifying recovery is complete
4. Sep 20, 2026, 02:51 UTC
   resolved
   This incident has been resolved.

Updates as published by Barracuda Networks (original).