| Abbreviation | Definition |
|---|---|
| CEH | Certified Ethical Hacking |
| CEIW | Cyber Enabled Information Warfare |
| CEK | Content Encryption Key |
| CEN | Cyber Erotic Noseplay |
| CERL | Cyber Engineering Research Laboratory |
| CERT | Computer Emergency Response Team |
| CERT | Cyber Emergency Response Team |
| CET | Cyber Engine Tweaks |
| CEWID | Cyber Electronic Warfare Integration Division |
| CFF | Cyber Future Foundation Cyber Future Foundation |
| CFM | Cyber Fed Model |
| CFT | Cyber Fast Track |
| CGC | Cyber Grand Challenge |
| CGCG | Cyber Guardian Consulting Group |
| CHAOS | Cyber Holistic Autonomous Orbiting Sever |
| CHDS | Center for Homeland Defense and Security |
| CHFI | Computer Hacking Forensic Investigator |
| CHM | Computer Hacker Money |
| CIAC | Computer Incident Advisory Capability |
| CIAN | Confidentiality Integrity Authentication and Non-Repudiation |