| Abbreviation | Definition |
|---|---|
| CAAS | Common Authentication and Authorization Service |
| CACI | Controlling Access to Computer Information |
| CACRL | Custodian Authorization Custody Receipt Listing |
| CAG | Citrix Access Gateway |
| CALS | Consolidated Accreditation and Licensure Survey |
| CAMEO | Computer-Aided Management of Emergency Operations |
| CAPI | Cryptography Application Programming Interface |
| CAS | Central Authentication Service |
| CAS | Conditional Access System |
| CAS | CPE (Customer Premise Equipment) Alert Signal |
| CASS | Certification and Accreditation Support System |
| CASS | Computer Automated Security System |
| CAU | Control Access Unit |
| CAVE | Cellular Authentication and Voice Encryption |
| CC | Command Code |
| CC | Common Core |
| CCA | Chosen Ciphertext Attack |
| CCC | Card Capabilities Container |
| CCIRC | Canadian Cyber Incident Response Centre |
| CCLE | CheckPoint Certified Licensing Expert |