SK Telecom Launches Free USIM Replacement After Data Breach
More than 200,000 subscribers of SK Telecom received new universal subscriber identity module (USIM) chips on the first day of the company's offering of a free replacement service following a recent network hacking incident. This initiative comes in response to a major data breach that exposed sensitive customer USIM card data. The cyberattack, detected on April 19, raised concerns about potential SIM swapping attacks and broader cybersecurity vulnerabilities.