Monitoring system reaction in cyber-physical testbed under cyber-attacks

In this paper, we exploit the cyber-physical testbed developed within the EU Project FA-CIES to analyze how monitor systems, typically used in Industrial Control Systems, may be prone to fail when facing cyber-attacks. Specifically, through several experimental trials, we test the poor ability of a Fault Diagnosis module to correctly manage cyber-attacks, which generally turn to be considered physical faults, forcing operators to perform erroneous countermeasures. To conclude, we outline how the presence of a cyber Intrusion Detection System improves the effectiveness and the reliability of the protection schema. The experimental validation has been carried out on an emulated water distribution system. (C) 2017 Elsevier Ltd. All rights reserved.