Cyber attacks on scada of critical infrastructures by an Hybrid Testbed

With the emergence of the Internet of Things, SCADA (Supervisory Control and Data Acquisition), which constitutes the nervous system of Critical Infrastructures (CI), are becoming geographically distributed and more vulnerable to cyber attacks. SCADA boundaries to be protected are going well beyond the single plants. In the paper, an hybrid test bed is used to conduct cyber attacks on SCADA and to analyze consequences on it and, in turn, on its physical CI. The hybrid test bed is constituted by hardware devices and simulative models. Hardware devices are in charge of representing actual SCADA devices, while simulative models represent interdependent physical CI. The test bed is completed by an open source platform which reproduces cyber attacks, includes typical SCADA cyber protections and monitors SCADA data flow. Simulative models represent an interdependent active electrical grid, a gas and a water network in an urban district. Continuity of supply of grid customers under cyber attacks is investigated.