# Food service data breaches in Japan and South Korea > Live situation record from CLSTR: https://clstr.news/situations/food-service-data-breaches-in-japan-and-south-korea > Updated: 2026-10-18T23:06:00.000Z. Sources: 8. Developments: 2. In mid-October 2026, major food service brands in Japan and South Korea reported significant data breaches involving unauthorized access to membership systems. In Japan, Burger King operator BK Japan confirmed that approximately 11.18 million member records were exposed due to unauthorized access occurring between October 2 and October 7. The leaked data includes names, dates of birth, phone numbers, email addresses, gender, and residence areas. The company stated that credit card numbers and login passwords were not compromised as they are not stored in their system. BK Japan has notified the Personal Information Protection Commission and is investigating the cause with external experts. In South Korea, the coffee chain Hollys reported a breach affecting customers who joined the membership program before February 11, 2020. The incident is estimated to have occurred between September 3 and October 7. Compromised information includes IDs, passwords, names, dates of birth, phone numbers, addresses, and email addresses. Hollys has advised customers to change their passwords immediately. ## Timeline ### 2026-10-18: Hollys and Burger King report major customer data breaches Hollys in South Korea and Burger King in Japan have reported major data breaches affecting millions of customers, exposing names, contact details, and membership information. 5 sources. https://clstr.news/cluster/hollys-and-burger-king-report-major-customer-data-breaches ### 2026-10-15: Burger King Japan confirms data breach of 11.18 million records Burger King Japan reported a data breach exposing 11.18 million app member records, including names, emails, and phone numbers, following unauthorized system access in early October. 3 sources. https://clstr.news/cluster/burger-king-japan-confirms-data-breach-of-1118-million-records --- Cite as: Food service data breaches in Japan and South Korea. CLSTR, https://clstr.news/situations/food-service-data-breaches-in-japan-and-south-korea