ESET Outage History

ESET Cloud Office Security experienced a brief login disruption affecting multiple regions and platforms, with some users seeing HTTP 400 or 500 errors when logging into services via Microsoft 365 or Google Workspace. The impact was limited to authentication access rather than a full service outage, and a broad set of components were listed as affected across regions.

Users attempting to access the ESET MSP Administrator portal experienced login failures, resulting in degraded access for a subset of administrators. The issue began at Dec 11, 2025 11:25 AM UTC and was resolved by Dec 11, 2025 12:05 PM UTC, spanning roughly 40 minutes. The service provider issued 2 status updates during the incident, first investigating the problem and then confirming restoration of access. The impact was isolated to the ESET MSP Administrator component, with no broader service disruption reported.

During a planned maintenance window, ESET Identity Service underwent a short upgrade activity that temporarily placed ESET PROTECT Hub in maintenance. The incident began at Dec 10, 2025 1:00 PM UTC and concluded at Dec 10, 2025 1:20 PM UTC, with users experiencing limited access to the PROTECT Hub while the upgrade proceeded. The official status update labeled the event as ESET Identity Service Planned Maintenance and indicated the platform upgrade was in progress.

ESET performed scheduled maintenance starting at 9:05 AM UTC UTC, affecting the ESET PROTECT Hub and the Identity Service along with a broad set of related components across regions. The maintenance window extended to 11:00 AM UTC UTC, during which the listed services were placed in maintenance and were later brought back online.

During the incident, the provider issued a total of 3 status updates describing progress and, by the end of the window, the affected components were returned to normal operation.

ESET PROTECT across Canada, the Americas and Oceania, Europe, Africa and Asia Pacific, and Japan underwent a planned maintenance window. The maintenance began at Nov 29, 2025 12:00 AM UTC and concluded at Dec 1, 2025 12:05 AM UTC, lasting roughly 2 days and 5 minutes. The Status page recorded two updates during the incident: the start of maintenance and the completion. During the window, some management functionality may have been temporarily unavailable, but no unplanned outages were reported and services returned to normal after the maintenance ended.

A scheduled maintenance window affected ESET PROTECT across Canada; Americas and Oceania; Europe, Africa and Asia Pacific; and Japan. The maintenance began at 12:00 PM UTC and completed at 1:05 PM UTC, lasting about 1 hour and 5 minutes.

During the window, ESET's status page indicated the maintenance was in progress and would be updated as necessary, and later confirmed completion with all regions returning to normal.

The maintenance window began at 4:00 PM UTC and concluded at 8:25 AM UTC as part of the transition of ESET Greece, Cyprus, Malta Partner. The operation affected a wide range of services including ESET Cloud Office Security for Google Workspace and Microsoft 365, ESET Inspect, ESET PROTECT and PROTECT Hub, MSP Administrator, Threat Intelligence, and related components across Canada, Europe, the Americas, Oceania, Asia Pacific, and Japan.

According to the official status updates, the work was scheduled maintenance and in progress during the window, with updates provided as needed. All listed components returned to normal after the maintenance window, indicating a complete recovery of services.

Starting at 10:25 AM UTC, ESET Inspect in the Japan region experienced degraded performance, with slower responses reported by users. The issue was isolated to ESET Inspect / Japan as the vendor investigated. The outage lasted approximately 3 hours and 35 minutes and was resolved by 2:00 PM UTC.

Two official status updates were published during the incident. By 2:00 PM UTC, the Japan component had returned to normal. The impact was limited to the Japan region, with no broader disruption reported elsewhere.

The outage began on Nov 13, 2025 9:30 PM UTC when ESET Inspect deployments in the United States and Japan became unavailable. A follow-up update at Nov 13, 2025 9:35 PM UTC noted random instabilities in the US region and said Japan had recovered. Over the next hours the issue expanded to other regions, resulting in degraded performance across Europe, Africa, Asia Pacific, Canada, and other deployments in the Americas and Oceania.

On Nov 14, 2025 8:10 AM UTC, the status page indicated degraded performance across additional regions, with multiple components impacted. The incident concluded when all regions returned to normal by Nov 14, 2025 1:05 PM UTC. Status updates were issued throughout the event to document the progression and responses from ESET and its partners, totaling four official updates during the incident.

The ESET Inspect service experienced degraded performance starting at Nov 12, 2025 9:35 PM UTC. Initial updates indicated login into ESET Inspect instances may be unavailable for the US region and partially for Japan.

Over the course of the incident, the provider issued 3 status updates as the issue spread across multiple regions: Europe, Africa, Asia Pacific; Americas, Oceania; Canada; and Germany. The outage lasted roughly 22 hours and 10 minutes, with restoration completed by Nov 13, 2025 7:45 PM UTC. Users likely encountered login difficulties and slower response times in affected areas, impacting workflows that rely on ESET Inspect across five regional deployments: Americas/Oceania, Japan, Europe/Africa/Asia Pacific, Canada, and Germany.