Trend Micro experienced a major incident on October 20, 2025 affecting Trend Micro Email Security, lasting 4h. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Oct 20, 2025, 07:00 AM UTC
Trend Micro service engineers have successfully identified the cause of the incident and are actively developing a solution to mitigate the impact. More information will be posted as available, and we greatly appreciate your patience as we work towards a resolution.
- investigating Oct 20, 2025, 09:00 AM UTC
Trend Micro service engineers are still addressing an ongoing issue. We are continuing to work towards a resolution and restoring services as soon as possible. More information will be posted as available, and we greatly appreciate your patience as we work towards a resolution.
- monitoring Oct 20, 2025, 09:30 AM UTC
Trend Micro service engineers have implemented a solution and are monitoring services at this time. We greatly appreciate your patience while we are returning services to normal.
- resolved Oct 20, 2025, 11:00 AM 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.