2026 Daiki Suisan — official app unauthorized access; 174,933 registered users
Data compromised
174,933 users who registered Nov 2024–Sep 15 2026 (including cancelled): names, phone numbers, emails, home addresses, dates of birth. Passwords on separate server — not in potentially compromised set. Actual external leak/misuse not confirmed at notice; users notified by email.
Technical writeup
Verified company notice — Daiki Suisan (conveyor-belt sushi) disclosed unauthorized access to its official app system affecting 174,933 registered users (Nov 2024–Sep 15 2026 registrations, including cancelled). Confirmed Sep 15; access path blocked. Fields that may have been exposed: name, phone, email, address, DOB. Passwords stored on a separate server and not included. No confirmed external dump or fraudulent use at indexing; sequential email notifications underway. recordsAffected 174933; companyConfirmed true.
Root cause
Unauthorized third-party access to official app systems confirmed Sep 15, 2026; external access blocked; external specialist investigation ongoing.