2026-11-12
Unauthorized access to the e-ticket service teket: names, email addresses and other member data leaked — what buyers and organizers should do
On November 8, 2026, teket Inc. announced (first report) that unauthorized access by a third party to its e-ticket sales and management service teket had leaked some member information. On November 5 it judged that unauthorized access was highly likely, and it stopped the service and blocked the access at 20:30 the same day. On November 6 it confirmed unauthorized access to the system that manages member information and that information had leaked. The confirmed leaked information is the name and email address of all members and, for members who registered or purchased only, date of birth, age, gender, address, phone number and ticket information (the code used to issue the ticket and the serial code issued by the organizer). The number of people affected is still being examined. The company says it has not confirmed secondary harm such as unauthorized logins, and it reported to the Personal Information Protection Commission on November 6. All services are stopped and there is no restart date. This site's conclusion: be ready for fake emails and texts that use the name teket, and keep your purchase confirmation email for any event held during the outage.