| Abbreviation | Definition |
|---|---|
| NSAT | Network Security Analysis Tool |
| NSCS | National Security Cyber Specialist |
| NSD | Network Security Deployment |
| NSE | Network Security Expert |
| NSEB | National Security Education Board |
| NSEL | Network Security Event Logging |
| NSG | Network Security Group |
| NSG | Network Security Groups |
| NSGI | Network Security Group Inc |
| NSIA | Network Security and Information Assurance |
| NSIAS | Network Security and Information Assurance Survey |
| NSIC | Network Security Innovation Center |
| NSL | Network Security Lab |
| NSL | Network Security Laboratory |
| NSM | Network Security Manager |
| NSM | Network Security Monitoring |
| NSO | Network Security Officer |
| NSOC | Network and Security Operations Center |
| NSOC | Network Security Operations Center |
| NSP | Network Security Protocols |