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sensitive information

Definitions:

  Information, the loss, misuse, or unauthorized access to or modification of, that could adversely affect the national interest or the conduct of federal programs, or the privacy to which individuals are entitled under 5 U.S.C. Section 552a (the Privacy Act), but that has not been specifically authorized under criteria established by an Executive Order or an Act of Congress to be kept classified in the interest of national defense or foreign policy.
Sources:
NIST SP 800-150 under Sensitive Information

  Sensitive but unclassified information.
Sources:
NIST SP 800-175B Rev. 1 under Sensitive (information)