Matsuya Foods Holdings announced unauthorized access to the official app's management system and confirmed that user information had been leaked. The affected services are currently suspended, and the company is proceeding with restoration work and individual notifications to affected users.
Unauthorized access by a third party occurred in the official app's management system on 28 October, and the leak was identified on 30 October. The official app and related services are suspended. The cause and circumstances are under investigation.
There are 2 types of leaked information. Information on official app registrants covers approximately 2,000 cases, potentially as many as 3,000. It includes member IDs, prefectures, names, telephone numbers, dates of birth, email addresses, encrypted passwords and Matsuya Points. Information on users of another service covers 2,377,127 cases and includes member IDs, delivery addresses, names, telephone numbers and Matsuya Points. Credit card information is not retained.
The company is proceeding with work to restore the systems and plans to contact affected users individually. It is warning users to be vigilant regarding suspicious emails, SMS messages and telephone calls. The details of the cause and circumstances remain under investigation, and further updates are expected.
According to reports by media outlets providing corroboration, it has been confirmed that some data from multiple services, including the official app, was leaked.