CYBER TRUST MODEL WITH APPLICATION TO THE ELECTRIC GRID
Norman F. Schneidewind · International Journal of Reliability Quality and Safety Engineering · 2006
Our overall objective is to develop a multilayered model that can identify system vulnerabilities and detect anomalous system behavior. Once these model components have been developed, we could link the resulting multilayered SCADA systems (e.g., substation networks linked by the Internet) to determine system interactions, and then test, refine, and validate these models and data through increasingly sophisticated experiments to discover and record additional dependencies and system interactions. What do we want to trust? We want to have confidence that the system is available and reliable to deliver power to the utility's customers as their needs demand. Furthermore, we want a secure system that is not vulnerable to cyber attacks. Why might we have lack of trust in critical infrastructure systems? External threats to the electrical power infrastructure are increasing over internal threats. One reason is the increasing use of the Internet for connecting substation networks to other parts of the electric grid.