Information System Resilience
Information System Resilience: The ability of an information system to continue to: (i) operate under adverse conditions or stress, even if in a degraded or…
Definition
The ability of an information system to continue to: (i) operate under adverse conditions or stress, even if in a degraded or debilitated state, while maintaining essential operational capabilities; and (ii) recover to an effective operational posture in a time frame consistent with mission needs.
Alternative Definitions
- Definition 2
The ability of an information system to: (1) continue to operate under adverse conditions or stress, even if in a degraded or debilitated state, while maintaining essential operational capabilities; and (2) recover effectively in a timely manner.
- Definition 3
The ability of an information system to continue to operate while under attack, even if in a degraded or debilitated state, and to rapidly recover operational capabilities for essential functions after a successful attack. (SP 800-30 T) (NISTIR)