Nihon Kotsu system breach may have leaked personal data of about 290,000 people
In July 2026, a malware infection and a breach of internal systems at Nihon Kotsu disrupted its taxi dispatch and booking systems. The investigation found that personal data of about 290,000 people, including job applicants, employees, family members, accident counterparties and users of its hire car service, may have leaked, and that data of ordinary taxi users was not included. Depending on the group, the data may include driving licences, bank accounts, health check results and some My Number data, and as of 30 October no further harm from misuse of the information had been confirmed.
Key facts
- Affected organisation
- Nihon Kotsu
- Incident type
- Data breach
- Occurred / detected
- Not confirmed
- Scale of damage
- Possible leak of personal data of about 290,000 people
- Cause / method
- Malware infection and unauthorised access to internal systems
- Location
- Japan
If your data was exposed
Exposed dataID document copyBank accountHealth & medical data
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Timeline
- The disruption of the taxi dispatch and booking systems caused by the July malware attack was disclosed.
- No further harm from misuse of the information had been confirmed.
- The investigation into the system breach found a possible leak of personal data of about 290,000 people, and the data items for each group were disclosed.
5 related reports
The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organisation’s official statements for accurate details.