Seoul: SK Telecom Co., South Korea's leading mobile carrier, announced a hacking incident involving the partial leakage of customers' universal subscriber identity module (USIM) data.
According to Yonhap News Agency, the company detected unauthorized network access on Saturday, which was caused by malicious code inserted by an unidentified hacker. In response, SK Telecom has initiated a comprehensive investigation into the breach. As of now, there have been no reported cases of misuse related to the leaked data.
Upon discovering the breach, SK Telecom promptly removed the malicious code and isolated the affected network system. The company also reported the incident to the Korea Internet and Security Agency and the Personal Information Protection Commission.
To address customer concerns, SK Telecom has published a notice on its website about the breach and is offering USIM protection services free of charge for customers seeking additional security measures.