INTEL TOPIC HUB

SS7 firewall Intelligence Briefs

Legacy SS7, Diameter, and GTP signaling remain the backbone of mobile roaming and authentication — and a prime attack surface for location tracking, fraud, and intercept. These intelligence briefs visualize real signaling threats and the firewall countermeasures operators deploy.

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SS7 firewallDiameter security 5GGTP protocol vulnerabilitiessignaling security for telecom

Intelligence Briefs

FAQ

What is an SS7 firewall?

An SS7 firewall filters MAP/CAP/INAP signaling at the network edge, blocking unauthorized location queries, SMS redirects, and fraud-oriented signaling from rogue interconnect partners.

Why is Diameter security critical in 5G?

5G cores rely on Diameter and HTTP/2 SBA interfaces. Misconfigured routes allow subscriber profile manipulation, authentication bypass, and cross-slice data leakage.