SK Telecom

Pierluigi Paganini May 21, 2025
SK Telecom revealed that malware breach began in 2022

South Korean mobile network operator SK Telecom revealed that the security breach disclosed in April began in 2022. SK Telecom is South Korea’s largest wireless telecom company, a major player in the country’s mobile and tech landscape. It holds about 48% of the market share for mobile services, meaning around 34 million subscribers use its […]

Pierluigi Paganini April 22, 2025
Millions of SK Telecom customers are potentially at risk following USIM data compromise

SK Telecom warned that threat actors accessed customer Universal Subscriber Identity Module (USIM) info through a malware attack. SK Telecom is South Korea’s largest wireless telecom company, a major player in the country’s mobile and tech landscape. It holds about 48% of the market share for mobile services, meaning around 34 million subscribers use its […]