Kakao Enterprise security incident history
Hacking, data breaches and other security incidents involving Kakao Enterprise, with related coverage.
Kakao Work hack exposes personal data and work emails of around 5,000 users
5kImpact: Personal data, work emails, attachments and other information belonging to around 5,000 users at 44 client companies
On 9 November, an external attacker gained unauthorised access to Kakao Work systems, exposing the personal data of around 5,000 users at 44 client companies. The exposed data included names, contact details, departments, email subjects and bodies, original attachments, and encrypted chat messages. The company and the Personal Information Protection Commission (PIPC) are investigating the precise scope and circumstances of the incident, and users have been advised to change their passwords and remain alert to impersonation.
Related reports: 24 →Malware on Kakao Enterprise servers leaks employee information
60Impact: Possible compromise of account information, including email addresses and phone numbers, of about 60 employees
On 21 February 2025, malware was discovered on Kakao Enterprise's internal infrastructure servers, and a possible compromise of account information, including the email addresses and phone numbers of about 60 employees, was identified. The Personal Information Protection Commission (PIPC) launched an investigation into how the leak occurred and its scale.
Related reports: 2 · last report →