Attack Isolation in a Water Treatment Plant

Cyber security of Cyber-Physical Systems (CPSs) has become a significant challenge due to growing interconnection among components in critical infrastructures through networks. In this paper, a strategy for attack isolation in a water treatment plant is proposed. Real data from the Secure Water Treatment (SWaT) testbed, a scaled down water treatment system developed by the iTrust Centre, is utilized in this study. The proposed attack isolation system is composed of a dual-observer-based isolation unit, a reconstruction-based contribution isolation unit and a neural network based isolation unit. The proposed system can uniquely isolate most of the attacks on the SWaT process and isolate the rest attacks to a small group of possibilities. Copyright (c) 2024 The Authors.