JA Kyosai security incident history
Hacking, data breaches and other security incidents involving JA Kyosai, with related coverage.
JA Kyosai reports October contractor breach may affect up to 2.85 million people
2.9MImpact: Personal information relating to up to approximately 2.85 million people is estimated to have leaked (a provisional count including duplicates), potentially including some users' bank account information.
On November 12, JA Kyosai announced additional investigation findings regarding the incident at its roadside assistance contractor PCS, where unauthorized access was detected on October 29, 2026. The leaked information is estimated to relate to up to approximately 2.85 million people, although this provisional count includes duplicate entries for policyholders and service requesters and may decrease after a detailed investigation. Potentially leaked data includes names, addresses, telephone numbers, vehicle and service request information, and bank account information for some users; the scope of the leak for each user remains under investigation.
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