Thank you for your continued use of the cloud services provided by InfiniCloud Co. Ltd.
We have identified zero-day vulnerabilities (CopyFail / DirtyFrag) related to data and communication processing on our server (sv01.jpws.jp). As a precautionary security measure, emergency maintenance was carried out on the dates listed below.
We sincerely apologize for any inconvenience or concern this may have caused our customers, and we appreciate your understanding and cooperation.
| Date of Occurrence | May 10, 2026 (Sunday) 2:07 AM 〜 2:09 AM |
|---|---|
| Affected Customers | Customers using the email service on the server in question |
| Cause | System maintenance (zero-day vulnerability response) |
| Impact | A service interruption occurred during the above time period. Emails sent from external sources during that time period have been redelivered and are not affected. Please note that no data loss has occurred as a result of this measure. |