mission critical
A condition of a system service or other system resource such that denial of access to, or lack of availability of, the resource would jeopardize a system user's ability to perform a primary mission function or would result in other serious consequences. (See: Critical. Compare: mission essential.)
Senses
(I)
A condition of a system service or other system resource such that denial of access to, or lack of availability of, the resource would jeopardize a system user's ability to perform a primary mission function or would result in other serious consequences. (See: Critical. Compare: mission essential.)
References
- IETF RFC 4949 (Internet Security Glossary)Jan 06, 2026RFC 4949 — Internet Security Glossary (Version 2)https://www.rfc-editor.org/rfc/rfc4949.txtRFC 4949 is published by the IETF Trust and marked as "Distribution of this memo is unlimited". Verify IETF Trust copyright/licensing terms for reuse.Source: IETF RFC 4949 (rfc-editor.org).