Use case of waterwork physical protection system robustness evaluation as a part of Slovak critical infrastructure

The article presents a use case evaluation of the robustness of a physical protection system for the Vodňany water tank, designated as a national critical infrastructure element. The evaluation will be performed based on three probable attack scenarios; the aim of these would be poisoning the drinking water source and intoxication of the population of the nearby city or destruction of the water tank and the resulting cutting off of residents from a source of drinking water. To check the robustness of the water tank itself and its physical protection system as a part of an overall robustness of the water tank area, a new software - SATANO (Security Assessment Of Terrorist Attack In A Network Of Objects) will be used. It allows for modelling physical protection system objects onto 2D maps and then simulate custom attack scenarios. This process of quantitative evaluation of a system's protection level may be accepted as part of the risk management process which is required by European Council as well as various national regulations from all operators of critical infrastructure elements.