The Cryptologic Technician Network (CTN) rating:

Cryptologic Technicians Networks (CTN). CTNs employ tactical and strategic capabilities to plan, develop, and execute offensive and defensive Cyberspace Operations; perform Threat Analysis, Digital Forensics, Network Exploitation, Research and Development, and Mission Planning; leverage tactical and strategic signals intelligence and cryptologic functions; produce and execute cyberspace effects; identify and report worldwide threats in support of special operations forces, national, fleet, and joint requirements; and control and safeguard access to classified material and information systems.

Source: Navy Learning and Development Roadmap.