Matsuya Foods announced that its official app management system had been subject to unauthorized access, resulting in the leakage of customer information relating to up to approximately 2.38 million people. The leakage of information including names and telephone numbers has been confirmed, while the company says it does not hold credit card information.
Matsuya Foods Holdings, which operates the gyudon chain Matsuya, disclosed unauthorized access to the management system for its official app. The leakage is said to affect customer information relating to up to approximately 2.38 million people, and the company has temporarily suspended its official app and official website.
The leaked information is said to include personal information such as registrants’ names and telephone numbers. The company explained that it does not hold credit card information, so the leakage is not expected to include financial information.
The company is investigating the circumstances and cause of the incident in detail and is working to identify the cause and consider measures to prevent a recurrence. Measures are being taken to determine the scope of the impact and prevent further damage.
Further updates are expected to include confirmation of the specific number of affected records, whether any secondary harm occurred, and the details of measures to prevent a recurrence. The suspension of the official app’s functions is described as a temporary measure.