In the UK, telecom security discussions are largely driven by cybersecurity. This focus is reinforced by the Telecom Security Act (TSA) and Ofcom guidance, which place strong emphasis on protecting networks from digital threats. (UK Government, 2021; Ofcom, 2023).

That focus is understandable - but TSA compliance goes further than cybersecurity alone.

The Act also requires telecom operators to protect the physical infrastructure that underpins their networks, from data centres and exchanges to street cabinets and transmission sites. When physical security is overlooked, compliance and resilience are both at risk.

Physical security is part of the TSA framework

The Telecom Security Act 2021 and its Code of Practice require operators to take appropriate measures to prevent disruption to networks and services. (UK Government, 2021; UK Government, 2022).

These measures include:

• Preventing unauthorised physical access
  Providers must use strict physical controls, such as secure entry systems and surveillance, to limit access to sensitive sites and reduce risks of tampering or interference.
• Protecting critical equipment and facilities
  Operators must safeguard core network equipment and facilities through hardening measures and secure configurations to maintain service integrity and prevent unauthorised modification.
• Managing environmental risks
  Providers should assess and mitigate environmental hazards, like fire, flooding, or extreme weather, using monitoring and resilience planning to keep infrastructure operational.
• Detecting incidents and responding effectively
  Operators need to monitor networks for anomalies, swiftly contain incidents, and report compromises to affected parties and Ofcom to minimise impact.
• Providing comprehensive audit trails
  Providers must maintain accurate, secure audit records that capture access, changes, and security‑relevant events, supporting investigations and regulatory reporting obligations.

Physical security is therefore not an additional consideration. It is a core element of UK telecom compliance.

What this means in practice?

To make the linkage clearer, the table below illustrates how key TSA requirements explicitly connect to physical security measures expected from telecom operators. 

How TSA requirements link to physical security

A balanced approach to telecom security

Cybersecurity remains essential. But it does not address all the risks covered by the TSA.
UK telecom compliance requires a balanced approach, where physical and digital security work together to protect critical infrastructure, maintain service continuity, and meet regulatory expectations.
Physical security is not about adding complexity. It is about ensuring that security strategies reflect how telecom networks operate - in the real world.

Quick checklist for TSA physical security readiness

A practical way to assess alignment with TSA expectations is to review whether the following foundations are in place:

✔ Perimeter secured and monitored
✔ Multi-factor access in place for sensitive sites
✔ Assets locked and tracked digitally
✔ Environmental safeguards tested and maintained
✔ CCTV and intrusion detection operational
✔ Backup sites and redundancy verified
✔ Incident response drills completed
✔ Compliance reporting available when required

This kind of structured approach helps operators demonstrate compliance clearly, while also strengthening day-to-day operational resilience.

Want to go further?

Would you like to learn more about how ALCEA supports telecom operators with compliant, resilient security solutions? Get in touch with our team to discuss your challenges and explore the right approach for your infrastructure.

References

1. Telecommunications Security Code of Practice (E02781980) – Sections: Prevention of unauthorised access, Monitoring and analysis, Preparing for remediation and recovery.
2. Telecom Security Act 2021 – General security duties and compliance framework.
3. Electronic Communications (Security Measures) Regulations 2022 – Physical security obligations for telecom providers.
4. NCSC Principle A3 Asset Management – Asset identification and protection requirements.
   
5. OFCOM Physical Security Standards & Network Resilience Guidance – Sections: Physical infrastructure guidance, Operational processes.
   
6. EC-RRG Resilience Guidelines – Sections: 7.1 Physical design considerations, 8 Business Continuity and Emergency Planning.
7. CAPSS Guidance – Integration of IT and physical security systems for resilience