OT Digital Twin Evaluation for Cyber Resilience Trade-Offs
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Solution Overview
Problem
Operational technology (OT) systems are susceptible to cyber attacks, which can impact physical system processes and require effective mitigative response measures to maintain resilience, but existing solutions often compromise system stability.
Innovation Solution
A system utilizing a digital twin to emulate OT systems, combined with genetic or evolutionary algorithms, to simulate cyber attacks and evaluate optimal mitigative response measures, ensuring both cyber and physical system resilience through a buzzer processing module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mitigative response measures are implemented to respond to cyber attacks, then system resilience is improved, but system stability deteriorates
Solution Approach 1:
The system performs preliminary evaluation of mitigative response measures by simulating cyber attacks and assessing potential impacts on physical processes before actual deployment. This allows identification of measures that maintain system stability while improving resilience, resolving the contradiction by pre-filtering unstable mitigation options.
Solution Approach 2:
The patent introduces an intermediary evaluation system that acts as a mediator between cyber security measures and physical process stability. This intermediary layer assesses the compatibility of mitigative responses with physical system constraints, enabling selection of measures that simultaneously improve resilience and maintain stability.
2Reliability
If comprehensive evaluation of mitigative response measures is performed, then resilience level is improved, but evaluation time increases
Solution Approach 1:
The system pre-evaluates candidate mitigative response measures through simulated cyber attacks before actual security incidents occur. This preliminary assessment builds a knowledge base of effective measures, enabling faster real-time decision-making during actual attacks while maintaining comprehensive evaluation quality.
Solution Approach 2:
The patent uses digital twins or simulated models to copy the physical OT system environment for evaluation purposes. This allows comprehensive testing of mitigative measures in a virtual environment without consuming real system resources or time, enabling thorough assessment while maintaining rapid response capability.
Data Source
AI summary
A system comprises one or more networks including a digital twin and one or more cyber system components. The digital twin is configured to emulate at least a portion of a physical system of an operational technology (OT) system. One or more processors of the system are configured to select a mitigative response measure to enable in the one or more networks for execution in response to a simulated cyber attack; determine a physical system reaction and a cyber system reaction responsive to the simulated cyber attack and the mitigative response measure; and determine a resilience level of an OT system enabled with the mitigative response measure responsive to the physical system reaction and the cyber system reaction.