teket security incident history
Hacking, data breaches and other security incidents involving teket, with related coverage.
Electronic ticketing service teket leaks all members’ names and email addresses
Impact: Names and email addresses of all members and additional personal information of some members exposed; all services suspended
Unauthorized access to Japanese electronic ticketing service teket’s member information management system exposed all members’ names and email addresses. Additional information exposed for some members included dates of birth, addresses, phone numbers, and ticket issuance codes. All services have been suspended since November 5, 2026, disrupting ticket sales, ticket display, and event admission processing, while the number of people affected, the scope of the impact, and when services will resume remain under investigation.
Related reports: 15 · last report →