In April, SK Telecom suffered a major cyberattack, compromising the personal data of around 23 million customers, nearly half of South Korea's population. Following this breach, approximately 250,000 users have already switched providers. The company's CEO warned that this figure could rise to 2.5 million if cancellation fees are waived, potentially costing SKT $5 billion over three years. The breach involved the theft of various personal details, leading to heightened risks of SIM swapping and government surveillance, prompting SKT to implement protective measures for its customers.
SK Telecom considers this incident the most severe security breach in the company's history and is putting forth our utmost effort to minimize any damage to our customers.
The number of customers affected and the entity responsible for the hacking is under investigation.
25 different types of personal information, including mobile phone numbers and unique IMEI numbers, have been exfiltrated from its central database.
If the company waives cancellation fees, we expect 2.5 million customers to switch providers.
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