The textbook examines the basic concepts, history, problems and threats of information security, the most important areas of ensuring it, including the basics of information security in economics, domestic and foreign policy, science and technology. Issues of legal and organizational support for information security, information support of defense activities and combat operations. Particular attention is paid to ensuring information security in the law enforcement sphere, as well as in the event of emergency situations. The essence and methods of information influence on a person, information security in the sphere of spiritual life of a person and society, in everyday life are considered. The manual meets the requirements of the educational standard and is intended for pedagogical students universities specialty 033300/050104 “Life Safety”. It can be recommended to managers and employees of educational institutions, students of retraining and advanced training courses for educational workers, security specialists. Recommended by the educational educational institution of the Ministry of Education and Science of the Russian Federation in the specialties of teacher education as a teaching aid for students of higher educational institutions studying in the specialty 050104 (033300 ) “Life Safety” Published with the financial support of the Federal Agency for Press and Mass Communications within the framework of the Federal Target Program “Culture of Russia.”