A measure of the importance assigned to information by its owner, for the purpose of denoting its need for protection.
Sources:
CNSSI 4009-2015 from NIST SP 800-60 Vol. 1 Rev. 1
NIST SP 800-12 Rev. 1 under Sensitivity
NIST SP 800-30 Rev. 1 under Sensitivity

  Used in this guideline to mean a measure of the importance assigned to information by its owner, for the purpose of denoting its need for protection.
Sources:
NIST SP 800-60 Vol. 1 Rev. 1 under Sensitivity
NIST SP 800-60 Vol. 2 Rev. 1 under Sensitivity

  A form of bias that results from failures in the heuristics humans use to make decisions.
Sources:
NIST SP 800-226 from Dwork et al (2006) - adapted