Trend Micro incident
Apex One Agent Error – TmUmEvt.dll “Bad Image”
Trend Micro experienced a major incident on October 8, 2025 affecting Apex One as a Service, lasting 6d 15h. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Oct 08, 2025, 08:00 AM UTC
Trend Micro service engineers are actively investigating a potential issue that may be affecting our customers. Some services may experience temporary degradation or intermittent availability. We are working to identify the specific impact and resolve the issue as quickly as possible. We apologize for the inconvenience and greatly appreciate your patience as we work towards a prompt resolution.
- investigating Oct 10, 2025, 12:00 PM UTC
Trend Micro service engineers have successfully identified the cause of the incident and are actively deploying a solution to mitigate the impact. We greatly appreciate your patience while we are returning services to normal functioning.
- resolved Oct 14, 2025, 11:00 PM UTC
Trend Micro service engineers have confirmed that the implemented solution has resolved the issue. All affected services are considered back to normal and the issue has been resolved.