Analysis of the functional interconnection of principles of technical implementation of net work channels of the SBI and the physical weakening of the informative signal in the path of its distribution when designing information systems and net works

The article discusses the task of protecting confidential information from its interception due to the induction of an informative signal on the power supply circuits by the main technical means of communication. As a solution of the problem under consideration, practically implemented methods and means of protecting information from leakage through side electromagnetic emissions and pressing channels based on a decrease in the signal-to-noise ratio in these channels to the limit at which information recovery becomes fundamentally impossible.