| FACL | File System Access Control List |
| FDE | Full Disk Encryption |
| FIM | File Integrity Management |
| FPGA | Field Programmable Gate Array |
| FRR | False Rejection Rate |
| FTP | File Transfer Protocol |
| FTPS | Secured File Transfer Protocol |
| GCM | Galois Counter Mode |
| GDPR | General Data Protection Regulation |
| GPG | Gnu Privacy Guard |
| GPO | Group Policy Object |
| GPS | Global Positioning System |
| GPU | Graphics Processing Unit |
| GRE | Generic Routing Encapsulation |