Mitigation

Mitigation is the set of actions taken to reduce the likelihood, impact, or both, of a security risk that cannot be eliminated. Examples in telecom include deploying SS7 firewalls to mitigate interconnect abuse, enforcing SMS Home Routing to mitigate location tracking, and rate-limiting Diameter peers to mitigate DoS. Mitigations are tracked against residual risk in formal risk registers.

Categories: SignalingRoaming and InterconnectSecurity Controls

Mitigation in context

Signaling protocols carry the control-plane messages that set up calls, register subscribers and route SMS. SS7, Diameter, GTP-C and SIP are the four dominant families, and interconnect exposure of any of them is treated by GSMA as top-tier telecom risk.

Roaming and interconnect are where two operators exchange signaling and user-plane traffic. Trust boundaries here are the primary attack surface for location tracking, SMS interception and fraud, which is why GSMA now mandates SEPP with PRINS on 5G interconnect.

To place Mitigation in the wider telecom-security picture, review Detection Engineering, Diameter Interconnect Security, Ingress, Integrity, Monitoring and N32 Interface (5G) — each entry cross-references back to this page so you can walk the topic in either direction.

Related terms

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