Textbook. — Omsk: Publishing House of Omsk Institute (branch) RSTU, 2011. 426 s. The textbook "Information Protection and Information Security" is intended for cadets of higher military educational institutions of the ground forces, studying in all specialties . The textbook reflects the full range of problems on information security and information protection, methods for assessing the performance of hard drives, restoring information when they are damaged. The presented work offers an original approach and substantiates the structure and methodology of information security, from modeling the information security system to ensuring information and psychological protection of the individual.