Yuri M. Krakovsky, Vladislav P. Kirgizbaev

Irkutsk state transport university

To enhance the efficiency of information protection tasks within an organization, it is proposed to use a budgetary fund where necessary financial resources are accumulated and then expended. Under conditions of uncertainty, both the time intervals for expenditures and the expenditures themselves are random variables, which should be described by probabilistic models when modeling. A study was conducted on the impact of types of probabilistic models and the values of their numerical characteristics on the efficiency indicators of tasks performed by the organization's information security service staff, servicing the corporate information system. The efficiency indicators are the probability of "zeroing" the budgetary fund and the coefficient of variation, which are replaced by point and interval estimates in discrete-event simulation. Practical recommendations have been obtained

discrete-event simulation, budgetary fund, economics of information security, efficiency indicators