Kyowon Group security incident history
Hacking, data breaches and other security incidents involving Kyowon Group, with related coverage.
Incidents: 1 · Most recent
Kyowon Group hack causes data leak and business disruption
5.5mImpact: 5.54 million customers potentially affected; confirmed scale of personal data leak unknown
Kyowon Group was hacked in January 2026, resulting in data being leaked externally and business operations being disrupted. A ransomware attack was suspected, and the company said 5.54 million customers' personal data was potentially at risk of being leaked. The Personal Information Protection Commission (PIPC) launched an investigation, but as of 22 January the scope of the personal data leak had not been confirmed.
Related reports: 36 · last report →