SK Telecom Shares Plunge Following Major Cyberattack and Customer Data Leak

SKM
October 06, 2025

SK Telecom disclosed that it suffered a leak of customer data earlier this month due to a cyberattack. This incident caused concern among its 23 million users regarding the possible theft of personal and financial information.

The company's shares fell as much as 8.5% on Monday, hitting their lowest level since August of the previous year. This market reaction reflects investor apprehension regarding the financial and reputational impact of the breach.

The cybersecurity incident is expected to lead to temporary declines in consolidated revenue and operating profit, as indicated by the company's revised 2025 guidance. This event necessitates significant investments in information protection and customer trust initiatives.

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