[Important/Urgent] Notice of Temporary Service Suspension Due to Vulnerability Mitigation

Thank you for using the e-learning platform "learningBOX."

Today, a critical vulnerability was discovered in the software used by our system.
To ensure the security of our customers’ valuable information assets and services as our top priority, we will be suspending all learningBOX services sequentially starting at 8:00 p.m. today as a precautionary measure and performing emergency maintenance.

Please note that, as of now, we have not confirmed any unauthorized access or leaks of personal information or course enrollment data resulting from this incident.

■ Service Outage Period
Wednesday, October 21, 2026, 8:00 p.m. —
*The time for service resumption has not yet been determined, but we expect service to resume on the morning of Thursday, October 22. We will provide an update as soon as the details are finalized, based on the progress of our safety checks.

■ Services Covered
All services related to learningBOX (web browser version, mobile app version, external integration APIs, etc.)
*Please note that during system downtime, neither administrators nor participants will be able to log in or perform any actions.

■ Apology and Request to Administrators and Participants
We sincerely apologize for the significant inconvenience and concern this suspension of service—which is taking place without prior notice—has caused our customers.
We understand that administrators may need to notify participants currently enrolled in courses and adjust the schedules for ongoing training sessions and exams. However, while the system is down, we will be unable to send individual notifications to participants. We appreciate your understanding.

■ Regarding Future Updates
We will post updates on the recovery status and the latest information regarding the system outage on this page as they become available.
・learningBOX Corporate Website Announcement:https://learningbox.co.jp/news/

■ Inquiries Regarding This Matter
We anticipate an increase in inquiries regarding this matter. We will address them in the order they are received, but please be advised that it may take longer than usual to respond to all inquiries. We appreciate your understanding.
Support Contact: global@learningbox.co.jp