High Assurance
Adjective · Security & Infosec
Definitions
Describing systems, processes, or controls built and evaluated to a level intended to support strong confidence in their security properties under demanding conditions. High-assurance environments emphasize formal design, rigorous testing, strong isolation, and careful operational discipline.
In plain English: A label for security systems designed and evaluated to a very high level of trustworthiness.
Example: "The signing service required high-assurance hardware and a tightly controlled operator workflow."