松屋フーズホールディングス announced that a third party had gained unauthorized access to the official app's management system, resulting in the leakage of member information and other data. The affected data included some official app member information and a large volume of data related to Matsuben Net, while no credit card information was involved.
松屋フーズ HD disclosed on 28 October that the official app's management system had been subject to unauthorized access by a third party, resulting in the leakage of member information. The affected data included official app member information and customer information from Matsuben Net online ordering, mobile ordering and Matsuben delivery.
The information registered by official app members consisted of member IDs, prefectures, names, telephone numbers, dates of birth, email addresses, encrypted passwords and Matsuya Points. Up to 3,000 records may have been leaked. By contrast, 2,377,127 customer records from Matsuben Net and the related services were leaked.
The company said it does not retain any credit card information among the leaked data. The combined volume of the official app-related data and the Matsuben-related data is considered potentially capable of having a significant impact.
The company disclosed the facts of the incident, but details of the cause and its future response are to await further updates.