The legislative framework for information security is considered, a list of possible threats is given, the main approaches to creating information security systems are reflected, a classification of preventive measures is presented, issues related to hardware and software mechanisms for ensuring information security are studied.

For students students in the field of training "Information Security", in the specialty "Information Security of Automated Systems" and students of the Faculty of Advanced Training. It may be useful for students and graduate students of other specialties who are interested in modern means and methods of ensuring information security.