Hackers Abuse SS7 and Diameter Protocols to Track Mobile Users Worldwide
ID: 92716fbc-3fb0-507d-88b0-a63cd11d1bf8
STIX ID: report--92716fbc-3fb0-507d-88b0-a63cd11d1bf8
Feed Name: cybersecurityNews.com
Threat Score
**Executive summary:** Citizen Lab uncovered two long-running espionage campaigns (STA1 and STA2) abusing legacy SS7 and 4G Diameter signaling to perform silent, cross-border location tracking by spoofing operator routing (STA1) and delivering zero-click binary SMS plus malicious SIM Toolkit commands (STA2); the report highlights systemic weaknesses in telecom interconnects and urges deployment of cryptographic authentication to mitigate widespread carrier-level surveillance.
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