Impact Statement: Starting at 23:54 UTC on 26 September 2025, customers in Switzerland North may experience service unavailability or degraded performances for resources hosted in the region. Virtual Machines may have shutdown to preserve data integrity. 

Current Status: We were alerted to this issue by our telemetry informing us in a significant drop in traffic. It was discovered that a recent deployment introduced a malformed prefix in one of the certificates used for connection authorization. We have pinpointed the deployment error involving the certificate prefix and are rolling back the faulty deployment to restore normal traffic flow and service availability.

Majority of the impacted services have been fully recovered, and a subset are nearing completion. We continue to monitor traffic and service stability to ensure full recovery.

Impact Statement: Starting at 18:44 UTC on 26 December 2024, a power incident in South Central US may have resulted in degradation in service availability.  

Current Status: We have determined that an unexpected power incident in one of the availability zones in South Central US impacted the availability of multiple Azure services. At approximately 20:43 UTC, power was confirmed to be fully restored, and services have started to recover. 

Mitigation steps are being applied, and services are on the path of recovery. 

• Service Bus, Log Analytics, Logic Apps, Azure Firewall, Storage accounts, and Application Gateway have been fully recovered. 
• Virtual Machines are close to mitigation. 
• CosmosDB, SQL DB, and App Service are on path of recovery. 

We are actively monitoring recovery progress and further updates will be provided in the next 2 hours, or as events develop. 

If you are impacted and it is possible, we advise you to consider failing your services to a different Availability Zone or region until we are fully restored.