2T SECURITY
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Telecoms

Cyber Security Services Built for the Backbone of the Digital Economy

THE CHALLENGE

The UK’s telecoms infrastructure underpins every sector of society—from emergency services and national defence, to banking, utilities, and citizen communications. But as networks grow smarter, software-defined, and cloud-enabled, so too do the risks.

Telecoms providers today must:

Defend a growing and evolving attack surface

with 5G, edge compute, virtualised RAN, and software supply chains offering new entry points for adversaries.

Navigate complex regulatory obligations

including the Telecommunications (Security) Act, NCSC guidance, and increasingly, alignment with GovAssure and the Cyber Assessment Framework.

Modernise legacy infrastructure

while maintaining uptime for millions of users, all in the face of intense commercial and geopolitical pressures.

The sector must balance resilience, innovation, and compliance.

When Legacy Telcom Meets Digital Infrastructure

Legacy Constraints

Vendor Locked Hardware

Decades-old switching, OSS/BSS, and fixed-line platforms.

Air-Gapped Core Systems

Fragmented Estates

Modern Era Pressures

5G & Network Function Virtualisation (NFV)

Software-defined networks, edge services, API-first provisioning.

Cloud Integrated Services & Open APIs

End to End Visibility Demands

Collision Point

Zero-day in a virtualised router can become the pivot to a national backbone if isolation isn’t architected correctly.

Legacy assurance models break when external devs plug into live operational environments.

SOCs struggle to monitor across SDN, legacy MPLS, on-prem, and public cloud in a single view.

How We Help
You Stay Ahead

 NCSC-Assured Risk Services for Telecoms

We’re one of the few consultancies accredited under the NCSC Assured Cyber Security Consultancy scheme—trusted to assess risk in some of the UK's most sensitive environments.

 

  • Telecoms Security Act (TSA) & CAF Readiness—tailored risk assessments aligned to both sector-specific and government-wide security frameworks.
  • Business-Critical Risk Models—mapping cyber risk to network availability, customer trust, and operational SLAs.
  • Proactive Threat Workshops—engaging senior stakeholders across engineering, risk, and ops to turn complex risk into clear actions.

 Security Architecture Built for Telco Scale

Our architects include telecoms specialists with deep experience in mobile and fixed-line networks, cloud orchestration, and cross-domain security.

 

  • Designers of the NCSC’s Advanced Mobile Solutions (AMS)framework—now influencing mobile security standards across defence and civilian sectors.
  • Zero Trust at Telco Scale—from customer portals to internal control planes, we build identity-driven, segmented architectures that protect users and infrastructure.
  • 5G‑Ready Reference Models—from secure slicing to trust anchors for network functions and APIs.

 Advanced Security Operations for Telecoms

Today’s SOCs must span legacy protocols, SDN, and containers. Ours does—and it’s engineered to support telecoms workloads.

 

  • 24 × 7 Monitoringacross multi-cloud, hybrid core networks and private compute.
  • Anomaly Detection for Telco—tailored use cases for signalling storms, unauthorised lateral movement, and rogue API usage.
  • NCSC-Aligned Playbooks—from SIM-swap detection to supply chain compromise and data exfiltration scenarios.

 Continuous Security Uplift

  • Threat Sprints drive detection updates and architectural tuning against emerging attacker TTPs.
  • Red Team Readiness—purple-team exercises simulate attacks on control-plane assets, subscriber services, and OSS/BSS chains.
  • Board‑Level Metrics—measurable improvements in MTTD, regulatory posture, and operational impact.

Why choose
2T Security

Telco Expertise Built In

Our architects have direct industry experience and have helped shape frameworks like AMS and GovAssure.

NCSC-Assured Across Risk, Architecture & SOC

One of the few organisations with full-spectrum capability, backed by central government assurance.

Proven Track Record

Supporting some of the UK’s most sensitive national infrastructure programmes, including Test & Trace, DWP, DCMS and more.

Strategic and Hands-On

Whether you're overhauling your architecture or responding to a live incident, we bring leadership and delivery, not just paperwork.

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Our services are available through multiple government frameworks, making procurement fast, simple, and compliant.

Learn More

Telecoms are critical and so is their protection

Speak to a telecoms security specialist today