The prevention of authorized access to resources or the delaying of time-critical operations. (Time-critical may be milliseconds or it may be hours, depending upon the service provided).
Sources:
NIST SP 800-12 Rev. 1
under Denial of Service
from
CNSSI 4009
The prevention of authorized access to a system resource or the delaying of system operations and functions.
Sources:
NIST SP 1800-15B
under Denial of Service
from
NIST SP 800-82 Rev. 2
NIST SP 1800-15C
under Denial of Service
from
NIST SP 800-82 Rev. 2
The prevention of authorized access to resources or the delaying of time-critical operations.
Sources:
NISTIR 7711
under Denial of Service