Exponential-e, the British Cloud, Network and Unified Communication provider, today announced that it's achieved the CAS(T) UK Government standard for telecoms providers -- certified by the National Cyber Security Centre (NCSC) - for its Smartwires, WAN, VPLS, Internet and HSCN services. Through CAS(T) accreditation, Exponential-e provides assurance to public sector customers -- including healthcare providers, police, and the Ministry of Defence - that their systems and services are substantially protected against cyber risks.