The article considers the physical basis for the formation of a technical channel of information leakage that occurs due to low-frequency acoustoelectric transformations. The method of instrumental and computational control of the security of speech information in the considered channel of information leakage, which is currently used in special research, is presented with a representation in the form of a simulation model. Based on the developed simulation model, using the MVR design pattern, a software tool was developed. The main classes of software that implements the model are presented. The functionality of the developed software tool is demonstrated and recommendations are given for the possible use of a simulation model for identifying threats to information security that occur due to low – frequency acoustoelectric transformations.

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