SK Telecom suspends new subscriber sign-ups as part of data breach response measures – Yonhap News Agency
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SEOUL, May 5 (Yonhap) — SK Telecom Co. suspended new subscriber sign-ups to its network Monday as part of response measures following a recent company network data breach.
The nationwide suspension took place as the company focuses on replacing mobile phone USIM chips after it detected a cyberattack on April 18 that showed signs of a large-scale leak of customer USIM data.
The government ordered SKT last week to halt new subscriber sign-ups until it resolves a shortage of USIM cards related to the data breach incident.
The company has offered free USIM replacements to all 25 million subscribers, including 2 million budget phone users, to prevent potential damage, but the efforts have lagged due to a limited supply.
A company official said about 1 million subscribers have so far replaced their USIMs, while 7.7 million others are signed up for replacements.
SK Telecom has also rolled out a USIM protection service, which it claims offers the same level of defense against illegal financial activity as physically replacing a USIM.
As of 9 a.m. Monday, 22.18 million people had signed up for the service, according to the company.
The official also said the company has yet to detect any cases of losses due to the stolen data so far.
SK Telecom Co. subscribers wait in line to replace their USIM chips at Incheon International Airport, just west of Seoul, on April 30, 2025. (Yonhap)
yunhwanchae@yna.co.kr
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