ReportedUpdated 3 Nov 2026
Burger King Japan data breach
Data breach1 source
What happened
Burger King Japan disclosed a major data breach after attackers accessed a server containing 11.18 million customer records.
Reported impact
An affected population has not been established in the accepted evidence.
- Data access
- unknown
Source evidence
1Read the original reporting and statements. Multiple articles may rely on the same underlying source.
BleepingComputer01Burger King Japan data breach exposes 11 million customer records
Retrieved 3 Nov 2026
We identified a potential unauthorized third-party access to the system that manages member information for our official app and conducted an investigation
Attributed reporting
2 more excerpts
As a result, it was determined on Tuesday, October 13, 2026, that unauthorized access occurred between Friday, October 2, 2026, and Wednesday, October 7, 2026, resulting in a leak of member information
Attributed reporting
attackers accessed a server containing 11.18 million customer records
Attributed reporting
Updates and corrections
- Revision 1
Incident updated.