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With an increased emphasis on the cyber-physical security of safety-critical industrial control systems, programmable logic controllers have been targeted by both security researchers and attackers as critical assets. Security and verification solutions have been proposed and/or implemented either externally or with limited computational power. Online verification or intrusion detection solutions...
This paper presents an on-going research work to improve control system resilience by running control and cybersecurity side-by-side in a highly-coupled fashion. The proposed method is able to detect cyberattacks which cannot be detected by conventional intrusion detection technologies, and furthermore it enables control to react to detected cyberattacks instantly, thus reducing the adverse impacts...
Epidemic models have received significant attention in the past few decades to study the propagation of viruses, worms and ideas in computer and social networks. In the case of viruses, the goal is to understand how the topology of the network and the properties of the nodes that comprise the network, together, impact the spread of the epidemics. In this paper, we propose rejuvenation as a way to...
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