Authorization  Definition(s): Access privileges granted to a user, program, or process or the act of granting those privileges.  Source: CNSSI-4009

Audit Trail  Definition(s): 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

Accreditation  Definition(s): Formal declaration by a Designated Accrediting Authority (DAA) or Principal Accrediting Authority (PAA) that an information system is approved to operate at an acceptable level of risk, based