The UK Telecoms Security Act (TSA) introduces clear, enforceable expectations for the security and resilience of critical telecoms infrastructure. For telecoms providers, compliance is no longer theoretical. It must be demonstrable, continuous and defensible.
CGI helps telecoms organisations move beyond point-in-time assessments to achieve assured, operational resilience. We combine deep regulatory expertise with automation-enabled assurance to give you continuous visibility of risk across networks, services, assets and suppliers.
The challenge
Regulators now expect clear evidence of how security and resilience risks are identified, prioritised and managed in practice. Static documentation and fragmented assurance models are no longer sufficient.
Chief Information Security Officers (CISOs) and network leaders face growing pressure to:
- Translate outcome-based TSA and National Cyber Security Centre (NCSC) Cyber
- Assessment Framework (CAF) requirements into repeatable, operational assessments
- Maintain visibility of critical assets and service dependencies across complex environments
- Demonstrate board-level oversight and risk-based decision-making
- Manage ongoing assurance across multi-vendor supplier ecosystems
Without this, organisations risk increased regulatory scrutiny, remediation demands and potential enforcement action.
Our approach
CGI supports telecoms providers regulated under TSA, including network operators, ISPs, infrastructure providers and their critical suppliers, by operationalising resilience and assurance.
We help you establish:
- Continuous, TSA-aligned resilience assessments
- Clear governance and evidence of risk-based decision-making
- Ongoing assurance across networks, platforms and suppliers
- Regulator-ready reporting grounded in real operational insight
Our approach combines expert-led services with automation, providing continuous insight rather than static compliance reporting.
What this means for you
By working with CGI, you gain:
- Clear visibility of your TSA security and resilience posture
- Confidence that risks are understood and actively managed
- Reduced regulatory exposure through continuous assurance
- Stronger supplier oversight across your telecoms ecosystem
Most importantly, you can evidence resilience in practice, not just on paper.
Learn more
Our full brochure explores:
- TSA resilience assessments aligned to NCSC CAF
- Automation-led continuous monitoring and resilience scoring
- Supplier assurance models for complex telecoms ecosystems
- How CGI helps organisations demonstrate regulator-ready assurance
To understand how CGI helps telecoms providers achieve demonstrable, operational resilience under TSA:
