Risk Analysis of Cyber Security in Nuclear Power Plant

The Cyber Security of Nuclear Power Plants (NPPs) is an important module of NPPs physical protection system (PPS). A potential security risk analysis of NPPs includes attack probability by the adversary, attack purpose and attack ability. Increased security defense advices will reduce the threat of intrusion. While the additional advices will increase the financial burden of the government and enterprises, so that the relevant companies must assess their security capabilities to protect nuclear facilities safety. This paper analyzes the risk of cyber security, including the threat, consequence and system effectiveness, to reduce the cyber intrusion risk of instrument and control system (I&C) and save the defense cost.