Estimation of the information safety level of modern infocommunication networks on the basis of the logic-probability approach

The condition of accessibility of the admissible level of protectiveness of an object of the infocommunication network from attack is stated. For the full set stipulated by irreversible, invariant, cause-effect links of the information protection functions, the logic-probability models of the estimation of protectiveness of the object of infocommunication networks are obtained. On the basis of the introduced notion of gradations of the information protection functions and their characteristics with the use of the Bayes formalism, for statistic data the statements are set up for the organization of the identification of the obtained probabilistic models with the aim to refine the current value of risk.