| Abbreviation | Definition |
|---|---|
| SRM | Security Relationship Management |
| SRN | Security Reference Number |
| SRS | Single Ring Security |
| SS | System Security |
| SSA | Super Spammers Anonymous |
| SSDD | System/Segment Design Document |
| SSF | Security Strength Factor |
| SSH | Secure SHell |
| SSO | Single Sign On |
| SSOP | Security Standard Operating Procedures |
| SSOP | Standard Security Operational Procedures |
| SSP | Security Support Provider |
| SSP | Simple Security Policy |
| SSP | Single Sign-on Password |
| SSPE | Simple Security Policy Editor |
| SSPI | Security Support Provider Interface |
| SSPM | Self-Service Password Management |
| SSPR | Single Sign-on Password Reset |
| SSS | Simple System Security |
| ST | Screening Tool |