International Journal of Engineering and Innovative Technology (IJEIT)
Digital instrumentation and control I&C systems are software based systems. These systems as information systems are vulnerable to cyber security attacks which impact the safety systems which are based on these digital I&C systems. Cyber security risk assessment is necessary to identify system vulnerabilities which could be exploited in malicious acts to determine actions to be taken in the form of risk management to avoid potential impacts of such malicious acts. Fuzzy logic is one of the major tools used for security analysis.