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| ▲ This combined file photo, taken Sept. 18, 2025, shows two Chinese nationals being sent from a police station in Suwon, south of Seoul, to a court for a hearing on the legality of their arrest for allegedly making unauthorized mobile payments by hacking users of KT Corp., the country's No. 2 mobile carrier. (Yonhap) |
KT-mobile payment breach
Seoul finds 20 more illegal base stations linked to KT hacking: more victims identified
SEOUL, Oct. 16 (Yonhap) -- South Korean investigators have found about 20 additional illegal base stations believed to have been used in hacking cases involving unauthorized small payments through telecoms firm KT Corp., officials said Thursday.
A government-private joint investigation team has identified around 20 more base station IDs beyond the four that KT had earlier confirmed were used in the scheme, according to findings compiled by Yonhap News Agency.
Several more victims -- fewer than 10 -- have also been identified.
KT has reported 362 victims of the unauthorized payment case, while police have counted 220 as of Monday.
The company said unregistered femtocells were connected to its network around late August, allowing hackers to access personal data from 362 users. Estimated losses stand at 240 million won (US$173,000).
A femtocell is a small, low-power cellular base station typically used in homes or small businesses. KT outsources their installation and management.
KT is reportedly considering an additional briefing to update its findings.
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