SK Telecom Data Breach: 25 Million Users Offered Free SIM Replacements

South Korea's largest mobile carrier, SK Telecom, experienced a USIM data breach affecting potentially 25 million users. While names and financial information were not compromised, the breach poses a risk of SIM swapping attacks. SK Telecom is offering free SIM card replacements, but due to limited inventory, only 6 million replacements are available until May. Enhanced fraud detection systems are in place, and users are encouraged to pre-book online replacements.