Personal data of 1.6 million Classu members leaked
Personal data of 1.6 million members of the online course platform Classu was leaked. In April 2025, the Personal Information Protection Commission (PIPC) imposed a fine on Classu over the personal data leak.
Key facts
- Affected organisation
- Classu
- Incident type
- Data breach
- Occurred / detected
- Not confirmed
- Scale of damage
- Personal data of 1.6 million members
- Cause / method
- Not confirmed
- Location
- South Korea
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.
- If you’ve suffered harm, report it. Call 118 (no area code) for privacy violations, contact the police for financial losses, and apply for dispute mediation to seek compensation.Personal Information Infringement Report Centre ↗Korean National Police Agency cybercrime report ↗Personal Information Dispute Mediation Committee ↗
Timeline
- A large-scale leak of Classu members' personal data came to light.
- The Personal Information Protection Commission (PIPC) imposed a fine on Classu over the personal data leak.
- It emerged that the Ministry of SMEs and Startups had provided a KRW 5 billion guarantee to Classu, where the personal data leak occurred.
6 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.