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    Glossary
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audit trail

Definitions:

  A record showing who has accessed an information technology (IT) system and what operations the user has performed during a given period.
Sources:
CNSSI 4009-2015

  A chronological record that reconstructs and examines the sequence of activities surrounding or leading to a specific operation, procedure, or event in a security relevant transaction from inception to final result.
Sources:
CNSSI 4009-2015

  A chronological record that reconstructs and examines the sequence of activities surrounding or leading to a specific operation, procedure, or event in a security-relevant transaction from inception to result.
Sources:
NIST SP 800-37 Rev. 2
NIST SP 800-53 Rev. 5

  A chronological record of system activities that is sufficient to enable the reconstruction and examination of the sequence of events and activities surrounding or leading to an operation, procedure, or event in a security-relevant transaction from inception to results.
Sources:
NISTIR 7316 under Audit Trail