To reduce the risks of intrusions and attacks as well as the effects of natural or manmade disasters on critical infrastructure by physical means or defensive cyber measures.
Sources:
NIST IR 8323r1
from
PPD-21
NIST IR 8441
from
PPD-21
To reduce the risks of intrusions and attacks as well as the effects of natural or human-caused disasters on critical infrastructure by physical means or defensive cyber measures.
Sources:
NIST IR 8401
from
PPD-21 - adapted