SK TELECOM REVEALS CYBERATTACK, CUSTOMER USIM DATA STOLEN COULD BE USED IN ATTACKS

Summary from the TLDR InfoSec newsletter

SK Telecom detected a malware attack targeting customer USIM data in mid-April. The company quickly isolated affected systems, notified authorities, and implemented security measures to prevent USIM swaps and suspicious authentication attempts. No data has appeared on the dark web, and no group has claimed responsibility for the incident.