Those information resources, mission/business processes, and/or critical programs that are of particular interest to potential or actual adversaries.
Source(s):
NIST SP 800-137A
under high value asset
Those assets, federal information systems, information, and data for which an unauthorized access, use, disclosure, disruption, modification, or destruction could cause a significant impact to the United States' national security interests, foreign relations, economy – or to the public confidence, civil liberties, or public health and safety of the American people.
Source(s):
NISTIR 8170
under High Value Asset
OMB M-17-09