UK ONR Cyber Security and Information Assurance (CSIA) for Nuclear Facilities 7.4-SITE: Equipment siting and cable security

Equipment and meeting spaces are sited so SNI cannot be overlooked or overheard by people without a need to know, including remotely operable conferencing equipment. Cable runs are protected from unauthorised access and damage, with cable type chosen with security in mind, network patching and physical port controls in office areas and cabinets, secure system cabling segregated in locked inspectable trunking or differentiated by colour or labels, crosstalk risk on long parallel runs managed, and SNI system cables kept apart from power cables. The impact of damage to exposed cables on security infrastructure is assessed.