SK Telecom has commenced the replacement of mobile SIM chips for its 23 million users. This action follows a major data breach caused by a cyberattack that led to the leak of customer data.
The company's decision to replace SIM cards is a direct measure to mitigate the risks associated with the data leak and restore customer security. This initiative is a significant operational undertaking for South Korea's largest mobile carrier.
The company context indicates that costs related to USIM replacement are part of approximately KRW 250 billion in one-off costs incurred due to the cybersecurity incident. This highlights the substantial financial impact of the breach and the company's response.
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