Burger King Japan data breach exposes about 11.18 million app member records

Burger King Japan disclosed on October 15, 2026 that an unauthorized party accessed the system managing its official app member information between October 2 and October 7, and that a leak of member data was confirmed on October 13. About 11.18 million member records were exposed, including member IDs, full names, email addresses, phone numbers, dates of birth, gender, prefecture, registration type, and mobile ordering and email verification flags.

The company said the system does not hold credit card numbers, that no password leak has been confirmed, and that no secondary damage has been confirmed.

Sources: Cybersecurity News; Cryptika