Yeny leak exposes 1,332,505 member records across four services
Unauthorised access exploiting an API connection configuration error at Japan’s Yeny exposed 1,332,505 member records across four services, including the ultra pay card. The leaked information comprised telephone numbers and company-specific member IDs, including those of former members. Yeny announced the leak, and no exposure of payment information such as credit card numbers has been confirmed.
Key facts
- Affected organisation
- Yeny
- Incident type
- Data breach
- Occurred / detected
- Not confirmed
- Scale of damage
- 1,332,505 member records, including those of former members
- Cause / method
- Unauthorised access exploiting an API connection configuration error in integration with an external service
- Location
- Japan
If your data was exposed
Exposed dataPhone numberUsername
- Change your password, and also change it on any other site where you use the same one. Turn on two-factor authentication if available.
- Don’t tap links in texts, calls or emails that mention this incident and offer compensation, refunds or breach checks. Check directly on the organisation’s official website or app.
Timeline
- Yeny announced the leak of 1,332,505 records containing telephone numbers and member IDs across four services.
- It was disclosed that former members were also affected and that no leak of payment information had been confirmed.
4 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.