An information technology audit, or information systems audit, is an examination of the controls within an Information technology (IT) infrastructure. An IT audit is the process of collecting and evaluating evidence of an organization's information systems, practices, and operations. The evaluation of obtained evidence determines if the information systems are safeguarding assets, maintaining data integrity, and operating effectively to achieve the organization's goals or objectives. These reviews may be performed in conjunction with a financial statement audit, internal audit, or other form of attestation engagement.

N R Doshi’s IT audit's agenda may be summarized by the following questions:

Will the organization's computer systems be available for the business at all times when required? (Availability)