| Abbreviation | Definition |
|---|---|
| HAIPE | High Assurance Internet Protocol Encryption |
| HARP | High-Assurance Rapid Prototyping |
| HASH | In cybersecurity, a hash is defined as a cryptographic sequence, where an encryption method such as |
| HDW | Hacktivist and Dack Web |
| HEAD | Handheld Encryption Authentication Device |
| HECTOR | Homomorphic Encryption Computing Techniques with Overhead Reduction |
| HIBE | Hierarchical Identity Based Encryption |
| HIME | Huge Integer Math and Encryption |
| HIPAA | Health Insurance Portability and Accountability Act |
| HISP | Holistic Information Security Practitioner |
| HOIC | High Orbit Ion Cannon |
| HSC | Hacking Syber Security |
| HSCSD | Houston Ship Channel Security District |
| HSES | Health Safety Environment and Security |
| HSESC | Health Safety Environment Security Communities |
| HSSE | Health Security Safety And Environment |
| HVCS | Heavy Vehicle Cyber Security |
| HW | Hacktivist Warfare |
| IACD | Integrated Adaptive Cyber Defense |
| IACR | International Association for Cryptologic Research |