The Ministry of Science and ICT and the Korea Internet & Security Agency (KISA) reported on the 22nd that they have received an incident report from SK Telecom and are investigating the damage status and causes of the incident.
According to the Ministry of Science and ICT, KISA demanded that SK Telecom preserve and submit data related to the incident the previous afternoon. In addition, KISA dispatched experts to the site to analyze the causes of the incident and prevent damage dissemination.
Considering the severity of the incident, such as personal information leakage and security vulnerabilities, the Ministry of Science and ICT established an emergency response team headed by the Director General of the Ministry's Information Security Network Policy Department. The Ministry plans to form a public-private joint investigation team if necessary and push for in-depth cause analysis and measures to prevent recurrence.
The Ministry of Science and ICT stated that it plans to address any technical and managerial security issues identified during the investigation process through corrective orders.
Choi Woo-hyuk, Director General of the Ministry's Information Security Network Policy Department, noted, "We will thoroughly monitor and supervise major corporations and institutions to strengthen information security for telecommunications facilities and services closely tied to citizens' lives."
Earlier, SK Telecom announced that it discovered signs of leakage of some customer SIM-related information due to malware around 11 p.m. on the 19th. After recognizing the potential leakage, SK Telecom immediately deleted the malware and isolated the suspected hacking devices.