TLDR Tech / InfoSec
Surveillance vendors caught abusing access to telcos to track people's phone locations, researchers say
Citizen Lab documented two long‑running campaigns where unnamed surveillance vendors posed as legitimate carriers to abuse SS7 and Diameter signaling and SIM-level SMS to geolocate targets worldwide, routing operations through 019Mobile, Tango Networks UK, and Airtel Jersey/Sure infrastructure, with SIMjacker‑style attacks used against at least one high‑profile target.
Read the full story