Within a volume of time and space, the perception of an enterprise’s security posture and its threat environment; the comprehension/meaning of both taken together (risk); and the projection of their status into the near future.
Sources:
CNSSI 4009-2015
NIST SP 800-172A
from
CNSSI 4009-2015
Perception of elements in the system and/or environment and a comprehension of their meaning, which could include a projection of the future status of perceived elements and the uncertainty associated with that status.
Sources:
NIST SP 800-160v1r1
from
ISO 17757:2019