Kakao security incident history
Hacking, data breaches and other security incidents involving Kakao, with related coverage.
Incidents: 1 · Most recent
KakaoTalk Open Chat users' personal data leaked and traded illegally
65.8KImpact: Leak and posting of 696 people's data confirmed; at least 65,791 records estimated leaked
A hacker combined information obtained through a vulnerability in KakaoTalk Open Chat rooms and an illegal program using member serial numbers to identify individuals and sold the data. The Personal Information Protection Commission confirmed that the data of 696 people was leaked and posted and estimated at least 65,791 records were leaked. Kakao contested the imposition of the fine in court but lost in the first trial; the appeal then disputed whether personal data was leaked and whether protective measures were adequate.
Related reports: 25 · last report →