Data of 3 million customers leaked at South Korean credit card company
A data breach affecting 3 million customers occurred at a South Korean credit card company, prompting an investigation by the authorities. On 24 September 2025, MBK Partners Vice Chairman Yoon Jong-ha appeared as a witness in an inquiry into the hacking incident.
Key facts
- Affected organisation
- Being confirmed
- Incident type
- Data breach
- Occurred / detected
- Not confirmed
- Scale of damage
- Data of 3 million customers leaked
- Cause / method
- Hacking
- 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
- South Korean authorities launched an investigation into a credit card company data breach affecting 3 million customers.
- MBK Partners Vice Chairman Yoon Jong-ha appeared as a witness in an inquiry into the hacking incident.
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.