Information that can be used to distinguish or trace an individual’s identity, either alone or when combined with other information that is linked or linkable to a specific individual.
Source(s):
NIST SP 1800-27B under Personally Identifiable Information from NIST SP 800-37 Rev. 2
NISTIR 8062 under Personally Identifiable Information from OMB Circular A-130

  See Personally Identifiable Information.
Source(s):
NIST SP 800-63-3 under Personal Data

  any information relating to an identified or identifiable natural person (data subject)
Source(s):
NISTIR 8053 from ISO/TS 25237:2008

  Any information about an individual that can be used to distinguish or trace an individual's identify and any other information that is linked or linkable to an individual.
Source(s):
NIST SP 800-163 [Superseded] under Personally Identifiable Information from NIST SP 800-122

  Information which can be used to distinguish or trace the identity of an individual (e.g., name, social security number, biometric records, etc.) alone, or when combined with other personal or identifying information which is linked or linkable to a specific individual (e.g., date and place of birth, mother’s maiden name, etc.).
Source(s):
NIST SP 800-53 Rev. 4 [Superseded] under Personally Identifiable Information from OMB Memorandum 07-16