Signaling Networks

Telecom Signaling Security

Harden SS7, Diameter, and GTP signaling against interception, fraud, and abuse.

Telecom Signaling Security

Service Overview

What our Telecom Signaling Security engagement covers.

Signaling networks carry the messages that make calls connect, subscribers roam, and data sessions stay authenticated - which makes SS7, Diameter, and GTP prime targets for abuse. Rutters Solutions tests these interconnects the way an attacker would, tracing paths to location disclosure, fraud, interception, and service disruption before they surface in production.

A named senior consultant owns each engagement from scoping through remediation review, so you always have a single, accountable point of contact with real hands-on telecom security experience.

Discuss Your Requirements

Key Deliverables

  • SS7 vulnerability scanning (MAP, CAP, INAP)
  • Diameter network security testing
  • GTP-C and GTP-U protocol assessments
  • Interconnect bypass & fraud simulation
  • Signaling firewall bypass testing

Key Capabilities

Core Elements

A structured methodology for probing and hardening signaling network environments.

SS7 Assessments

In-depth SS7 network testing that surfaces subscriber-tracking, call-interception, and fraud exposure.

Diameter Testing

Independent review of LTE signaling perimeters and roaming interconnect trust boundaries.

GTP Security

Targeted assessment of GRX/IPX interconnects to close off spoofing and data-leak vectors.

Firewall Evasion

Controlled attack simulations that verify whether deployed signaling firewalls actually hold.

Why Rutters

Telecom expertise. No shortcuts.

Every telecom security engagement is run by practitioners who have built and operated carrier networks, not just tested them.

Real-world Attacks

We probe using the exact tradecraft real adversaries rely on, so findings reflect genuine risk.

FS.11 / FS.19 Aligned

Methodology mapped directly to the GSMA FS.11 (SS7) and FS.19 (Diameter) baselines.

Zero-Day Discovery

Purpose-built tooling surfaces undocumented logic flaws that standard scanners miss.

Strategic Mitigation

Practical, implementation-ready guidance on STP/DRA routing and firewall rule design.

Ready to Start?

Let's discuss your security requirements.

Every engagement begins with a confidential, no-obligation conversation. We will respond within one business day and confirm the right next step.

All enquiries are treated in strict confidence.