MONOGATARI CORPORATION confirmed that the official Yakiniku King app it operates had been subject to unauthorized access, resulting in the leakage of approximately 10.78 million records of personal information belonging to app registrants. Payment information such as credit card details is not expected to have been registered, while the share price is also falling sharply.
MONOGATARI CORPORATION announced that the official Yakiniku King app had been subject to unauthorized access and disclosed an overview of the personal information affected by the leak.
The leaked information included membership numbers, names, telephone numbers and email addresses. It is reported that payment-related credit card information was not included.
The leak is expected to affect short-term earnings, and concerns are growing over higher costs going forward.
Following the leak, stakeholders are watching developments in additional investigations and measures to prevent a recurrence.