793,060 records leaked from 17 Gakken Group companies
Gakken confirmed that unauthorised access to a contractor led to the leak of 793,060 records from 17 group companies. Gakken revealed the confirmed scale of the breach in its second announcement.
Key facts
- Affected organisation
- Gakken
- Incident type
- Data breach
- Occurred / detected
- Not confirmed
- Scale of damage
- 793,060 records from 17 group companies
- Cause / method
- Unauthorised access to a contractor
- Location
- Japan
If your data was exposed
- 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
- In its second announcement, Gakken revealed that unauthorised access to a contractor had led to the leak of 793,060 records from 17 group companies.
2 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.