Audit trail

A visible trail of evidence enabling one to trace information contained in statements or reports back to the original input source

This record contains chronological records that enables one to trace information back to the original input source, who changed what and when for accountability, allowing for the reconstruction and examination of the sequence of activities surrounding or leading to specific operations, procedures, or events in a security relevant transaction from inception to final result, including source documents, electronic logs, and records of access to restricted files.

A record showing who has accessed an Information Technology (IT) system and what operations the user has performed during a given period.