2026 Matsuya Foods — unauthorised access to official app management system; registrant names and phone numbers; app and online ordering suspended
Data compromised
App registrants' names and phone numbers, per press reports of the company's notice. NHK reports about 2.37 million registrants; the company figure is not confirmed in the sources reviewed. The company says it holds no card data.
Technical writeup
Sourced from Japanese press reports of the company notice; the company release was not fetched. Counts differ between outlets. The company website returned errors during verification, so website and logo are blank.
Root cause
Matsuya Foods says an unauthorised party accessed the management system for its official app. It detected the intrusion on October 28, 2026, and suspended the app and ordering services. It announced the incident on October 30.