Mathematical modelling of the process for impact on automated information system security of threats access to restricted information

Abstract

This paper presents the results of mathematical modeling of influence of various dependent threats on security of information with restricted access. The article proposes a method and software implementation in relation to the particular case, namely the impact on automated information system (AIS) of two dependent threats. The method is based on application of Markov stochastic processes with discrete states and there are recommendations for optimizing the process of protecting information of restricted access in terms of the stochastic of a successful outcome from the automated information system of internal and external threats in this method in accordance with the results of mathematical modeling