An event or situation that has the potential for causing undesirable consequences or impact.
Sources:
NIST SP 1800-21B
under Threat Events
from
NIST SP 800-30 Rev. 1
NIST SP 800-12 Rev. 1
under Threat Event
NIST SP 800-160 Vol. 2 Rev. 1
from
NIST SP 800-30 Rev. 1
NIST SP 800-161r1
from
NIST SP 800-30 Rev. 1
NIST SP 800-30 Rev. 1
under Threat Event
NIST SP 800-82r3
from
NIST SP 800-30 Rev. 1