Investigation into SKT's handling of personal data could stretch over several months, even a year, as per the head of the data protection authority.
In the bustling heart of Seoul, Personal Information Protection Commission Chair Ko Hak-soo addressed a packed meeting at Government Complex Seoul, on April 9, 2025. This gathering came in the wake of a significant hacking incident that had shaken the nation – the unauthorized breach of SK Telecom's USIM data. [YONHAP]
The aftermath of this hacking incident has led to an extensive SIM card replacement program for SK Telecom's 23 million customers, initiated on April 28, 2025, at 2,600 carrier stores across the nation. This move, aimed at addressing the data breach that began on April 18 due to malicious code, allows subscribers to exchange their compromised SIM cards.
However, the program has been met with challenges. Initial chip procurement fell short, with SK Telecom securing less than 5% of the required USIM chips. By the end of May 2025, the South Korean giant plans to acquire 5 million additional units to meet the demand. In the interim, customers like Seoul resident Jang have reported queuing at physical stores due to limited online guidance.
In addition to replacements, SK Telecom has introduced a SIM protection service to block unauthorized device access. Adoption of this service stands at approximately 10% (2.4 million users) as of April 25, due to service complexity and roaming incompatibility.
The company has faced criticism for its transparency, as it has yet to disclose the full extent of the breach or the number of affected users. CEO Ryu Young-sang has publicly apologized and urged subscribers to replace their SIM cards or enroll in protective services.
This program serves as a reflection of SK Telecom's crisis response amid South Korea's increasingly challenging cybersecurity landscape, which has included recent North Korean-linked breaches. [5] The incident highlights the importance of robust cybersecurity measures and transparency in today's digital age.
- The government is scrutinizing SK Telecom's policy-and-legislation response to the hacking incident, as concerns rise over the transparency of the breach's extent and number of affected users.
- The Jongno district's Ilbo newspaper has published detailed descriptions of the SIM card replacement program, highlighting the challenges faced by both SK Telecom and its customers.
- Businesses within the industry are eagerly watching the unfolding events, as they may have implications for future policy-and-legislation concerning cybersecurity and data protection.
- The Public's heavy interest in the General News has led to debates on politics and the government's role in managing cybersecurity threats more effectively.
- Amidst this critical review of SK Telecom's crisis management, the company is actively working to address the shortage of USIM chips, aiming to provide a smoother replacement program for its 23 million customers.
