Matsuya Foods Holdings, a major gyudon chain operator, detected unauthorized external access and suspended its website and app services. Mobile ordering and coupon use are unavailable, and there is currently no estimate for when services will be restored.
Matsuya Foods Holdings said it detected unauthorized external access at around 9 p.m. on the 28th and suspended related services. As a result, services including its official website and mobile app were temporarily suspended, and there is currently no estimate for when they will be restored.
The company is currently investigating the cause, scope of the impact and whether any personal information was leaked. Its official comment expressed apologies for the inconvenience, and the company is expected to continue checking whether any personal information was leaked.
In follow-up reports, the focus is expected to be on identifying the cause, disclosing the scope of the impact and providing an estimate for when services will resume. Users should monitor updates in the company's official announcements.