CESG Assured Service (Telecoms) - CAS-T

The new CAS-T has been developed by UKAS and CESG, the GCHQ’s Information Assurance arm and the UK Government's National Technical Authority for information assurance, responsible for enabling secure and trusted knowledge sharing.

It has been designed to counteract threats arising from telecoms network providers who, while upgrading their networks to IP technology sometimes use third party suppliers or services providers.

Benefits of CAS-T

  • Minimising risks.  By identifying potential threats to your organisation's network when using third party suppliers, you can reduce the risks and therefore help protect your organisation against incidents occuring.
  • Reducing costs.  By identifying threats early, you can put measures in place to reduce the costs to rectify the potential damage caused.
  • Stakeholder confidence.  Demonstrate your ongoing commitment to security and continually improving security so that your key stakeholders have confidence in your ability to protect against any future security threats.

Why choose LRQA for CAS-T?

  • Proven track record

  • We have a number of high profile clients in the telecoms sector currently working to achieve CAS-T 
  • Business Assurance 

  • Our Business Assurance approach means that we work with you to make sure that your management system works for and grows with your organisation.
  • Security specialists

  • We are one of only three organisations currently recognised by UKAS as having the expertise to provide accredited certification against CAS-T.

What is CAS-T certification?

CAS-T is a certification scheme for telecommunications services formerly known as the CESG Standard Security Certification Scheme. The scheme supports the pan-government Public Sector Network (PSN) programme. This requires all telecoms services procured by public sector bodies to be accredited to protect information up to the 2-2-4 level (2 for integrity, 2 for confidentiality and 4 for availability) for business impact.

This level of security is sufficient for the transmission of ‘unclassified’ and ‘protect’ data. The scheme is also a pre-requisite for the levels of data classified at ‘restricted’ and ‘confidential’.

The scheme is based on information security management system (ISMS) certification to ISO 27001, with additional sector specific requirements.

Need to know more?

For updates on the new CAS-T scheme, visit our CAS-T revision section or complete our on online enquiry form