A simulation model of IT systems with security features

The paper covers the development of a simulation model for the reliability of IT systems consisting of a protected asset and a security module. There are various types of attacks to obtain unauthorized access to the protected asset. Since the system under consideration operates stochastically, the simulation model is a random process as overlapping of alternating recovery processes. We analyzed the proposed model and obtained asymptotic estimate ratios: the probability of no-accident state during the recovery stage of the process; IT system mean time between failures.
The paper is intended for engineers and mathematicians dealing with the reliability of systems consisting of a protected asset and a security module.