| Abbreviation | Definition |
|---|---|
| SCP | Secure Copy Protocol |
| SCP | Security Certified Program |
| SCV | Secure Client Verification |
| SD | Secure Data |
| SD | Secure Digital |
| SD | Self Delete |
| SDC | Security Data Corporation |
| SDFI | Secure Digital Forensic Imaging |
| SDIO | Secure Digital Input/Output |
| SDLC | Software Development Life Cycle |
| SDSI | Simple Distributed Security Infrastructure |
| SE | Security Enhanced |
| SE | Security Environment |
| SecaaS | Security as a Service |
| SECSH | SECure SHell |
| SECT | Secure Electronic Compliance Technologies |
| SECTY | Security |
| SEM | Security Event Management |
| SEP | Secure Execute Processor |
| SEP | Single Entry Point |