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KT's unauthorized micro-charges prompt major security probe in South Korea

( September 10, 2025, 09:02 GMT | Official Statement) -- MLex Summary: Telecom giant KT's unauthorized microtransaction security breach is being classified as a "major" incident by South Korea's  Ministry of Science and ICT, which has established a joint public-private investigation team to probe the case. According to Ryu Jemyung, second vice minister of the ministry, the breach involved unregistered base station connections to KT's network, with the incident resulting in unauthorized microtransactions that affected 278 customers and caused about 170 million won ($122,000) in financial damages. He said the company detected abnormal call patterns on Sept. 5 but, initially assuming handset-level smishing, filed a formal report only on Sept. 8 after victim call logs flagged an unregistered base station. The ministry said it has ordered KT, SK Telecom and LG Uplus to curb new micro-base-station connections, while a probe examines the intrusion path, payment mechanism and any data exposure alongside broader carrier-wide security inspections and preventive measures.The statement, in Korean, is attached....

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