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5G Security Operations — SOC for 5G Core Networks · Pro
A pure 5G SA deployment without 4G interworking might seem to escape legacy protocol concerns — but very few real-world deployments are pure. Most 5G subscribers can still: roam to networks that use 4G (Diameter) or 3G (SS7); fall back to 4G for voice (where Diameter is essential); receive SMS via legacy interconnect signaling. As a result, an attacker who can reach an operator's Diameter or SS7 interconnect can launch attacks that affect 5G subscribers. SS7 attacks include location tracking, SMS interception, call interception (when paired with rogue base stations). Diameter attacks include…