Information system security is the
|“||protection of information systems and information against unauthorized access, use modification, or disclosure to ensure the confidentiality, integrity, and availability of information systems and information.||”|
|“||[p]rotection of information systems against unauthorized access to or modification of information, whether in storage, processing, or transit, and against the denial of service to authorized users, including those measures necessary to detect, document, and counter such threats.||”|
- Tax Information Security Guidelines For Federal, State and Local Agencies, at 153.
- 12 FAM 090 (full-text).