Deep in the
Signalling Core
Telecommunications core security demands a different level of technical depth. We operate at the protocol layer across SS7, Diameter, GTP, and SIP, with the tooling, infrastructure, and operational experience to assess your network from the inside out, including from the position of a trusted peer.
What We Offer
Modern mobile networks continue to rely on signalling protocols with well-documented vulnerabilities, and many operators remain exposed without knowing the extent of their risk. Our SS7 and Diameter assessments engage directly at the protocol layer, simulating real world attack scenarios including location tracking, call interception, SMS hijacking, and subscriber data exposure. We deliver findings that are technically precise and operationally relevant, helping operators understand not just where they are vulnerable, but how an adversary would realistically exploit those weaknesses across roaming interconnects and internal network boundaries.
Interconnect security is one of the most overlooked attack surfaces in telecommunications. Our core network security testing covers the full signalling stack, including SS7, Diameter, GTP, and SIP, with assessments tailored to your network architecture and roaming agreements. We work at a protocol level to identify misconfigurations, filtering gaps, and abuse scenarios that standard network monitoring will not catch. Whether you are preparing for a regulatory audit, responding to a suspected signalling abuse incident, or looking to benchmark your defences against current threat actor tradecraft, we provide the technical depth and telco-specific expertise to give you a clear picture of your exposure.
The most dangerous threats to telco core infrastructure do not come from the outside. Nation state actors and sophisticated threat groups routinely operate from positions of implicit trust, compromising roaming partners, subverting interconnect agreements, or establishing a foothold within the signalling fabric before anyone raises an alarm. We bring the capability and infrastructure to simulate exactly that scenario, engaging your core network from the position of a trusted peer using purpose built tooling and real infrastructure to run these scenarios end to end.
The security of a telco core is only as strong as the equipment and software stack underpinning it. We conduct in depth security assessments of telco hardware and software components, including firmware extraction and analysis, binary review, interface testing, and evaluation of vendor hardening practices against real world attack techniques. This extends to virtualised network functions, open interfaces, container orchestration, and 5G deployments where the convergence of IT and telco infrastructure introduces risks that traditional telco security programmes were never designed to assess.
Inside the
Trust Boundary
Standard perimeter testing does not account for adversaries who are already inside. Nation state actors and sophisticated threat groups routinely operate from positions of implicit trust, and most operators have never stress-tested what that looks like once an adversary is within the signalling fabric itself.
Our team has the technical knowledge, purpose built tooling, and hands on experience to stand up a realistic adversarial environment and engage your core network from the position of a trusted peer, whether that is a rogue roaming partner, a compromised MVNO, or a nation state actor operating through a compliant foreign operator. This is not theoretical. We have the kit, the protocol level expertise, and the operational experience to run these scenarios end to end.
For operators considering or actively deploying 5G, the risk landscape shifts considerably. New network architectures, expanded attack surfaces across the RAN and core, service based architecture exposures, and the convergence of IT and telco infrastructure all create security challenges that require a different lens to evaluate properly. We work with operators to understand what these risks look like in the context of their specific environment, their existing infrastructure, their vendor mix, and their operational constraints, rather than applying a generic framework that does not reflect how networks are actually built and run.
If your threat model includes sophisticated state level actors, your testing programme should reflect that. We can help you find out what they would find before they do.
Secure Your
Telco Core
Contact us to discuss your telecommunications security assessment needs. Engagements are scoped around your network architecture, roaming agreements, and threat model.
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