Anomaly Detection

Anomaly Detection in context

Signaling protocols carry the control-plane instructions that set up calls, register subscribers, hand over sessions 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 FS.11 / FS.19 / FS.20 as a top-tier telecom risk.

Telecom threats range from opportunistic SMS phishing and SIM swap to nation-state grade location tracking and lawful-interception abuse. The common thread is that most attacks exploit the inherited trust model of legacy signaling. SS7 and Diameter were designed for a closed operator community that no longer exists.

To place Anomaly Detection in the wider telecom-security picture, review Traffic Baselining, Attack Surface Mapping, Indicators of Compromise (Telecom IoCs), Vulnerability Assessment, Threat Hunting (Telecom) and GSMA T-ISAC.

Related terms

• Traffic Baselining
• Attack Surface Mapping
• Indicators of Compromise (Telecom IoCs)
• Vulnerability Assessment
• Threat Hunting (Telecom)
• GSMA T-ISAC
• ACL
• Lawful Interception Abuse Risk

Related topic hubs

• Diameter Attacks S6a IDR/PUR/CLR abuse, subscriber tracking, LTE signaling attacks.
• Signaling Firewall Unified SS7/Diameter/GTP/SMS signaling firewall framework.

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