Modeling and Simulation as Tools to Increase the Protection of Critical Infrastructure and the Sustainability of the Provision of Essential Needs of Citizens

States and their cities are at the forefront of efforts to address many of today’s transnational security challenges. States cannot fulfill their basic functions, which include caring for the all-round development of their territory and the needs of its inhabitants, without the existence of critical infrastructure, which can be damaged, destroyed, or disrupted by malicious behavior. The legislation of EU authorities presents methods for improving the crisis management cycle within critical infrastructure protection. However, these methods are not elaborated. Modeling and simulation using software tools enable more accurate decision-making by security managers during the process of designing and evaluating the physical protection systems of critical infrastructure. This article presents a new software solution to the intrusion of unauthorized persons and its potential mathematical extension. The main innovative benefit of this newly created software tool is the possibility of creating more sophisticated attack scenarios using various 2D maps. Mathematical extension model response scenarios are constructed for various types of intruders, allowing more accurate training of defenders, which leads to more effective resource usage. This combination of software and mathematical solutions should allow physical protection system designers to test various intrusion scenarios of critical infrastructure elements.