In fact, in today's conditions of continuous innovative development of technologies, in the field of programming, computer networks and the Internet, the dark side of progress continues to grow at great rates: virus software. As a result, in this article we will try to focus on all aspects of the fight against viruses: prevention of infection, methods of detecting malicious programs, their destruction, as well as elimination of consequences. To do this, we conducted research and study of the main scientific sources on this topic and statistical data. As a result, this article focuses on different types of viruses and analyzes the methods of their classification, detection and destruction.

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In the article, the development of a system of counteraction to unmanned aerial vehicles is considered. A way to counteract unmanned aerial vehicles is described. The analysis of parameters of the system and its constituent parts is carried out. The structural scheme of the system, functional and principle schemes of subsystems on the basis of Arduino are described.