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Fink Telecom Services (FTS) is a Switzerland-based telecom signaling and SMS routing company that has been reported to have leased SS7 Global Titles with platform capabilities enabling location tracking and interception. In the provided reporting, Citizen Lab found that surveillance activity attributed to STA2 overlapped with identifiers, hostname formats, and same-day attack patterns associated with Fink Telecom Services, a Swiss telecom surveillance vendor previously exposed in investigative reporting. The broader activity described is consistent with commercial surveillance operations exploiting weaknesses in SS7 and Diameter roaming ecosystems for covert mobile subscriber tracking. Observed techniques in the associated activity included SS7 probing, Diameter-based location queries, manipulation of signaling identifiers and routing paths, and a SIMjacker-style zero-click binary SMS exploit intended to obtain cell-location data via the SIM card. Citizen Lab assessed the overall activity as consistent with commercial surveillance platforms supporting state intelligence customers, but did not directly attribute the campaigns to a specific government or organization. Known alias in the provided content: FTS.
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