Risk Analysis and Countermeasures to Information Security of Digital I&C Systems in Nuclear Power Plants
The I&C system is an important component of nuclear power units. Information security of the I&C system is essential to ensure the reliable operation of nuclear power units. This paper explores the information security issues of dig-ital I&C systems. Using literature review and case analysis methods,starting from structural composition of the I&C system,it analyzes the information security risk points and proposes countermeasures. Finally it elaborates on the infor-mation security management plan. It can be concluded that there are many information security risks in digital instrument and control systems. Only by identifying and evaluating risk points,and developing appropriate countermeasures from both management and technology levels,can I&C system's information security be ensured and its operational quality be improved.
nuclear power plantI&C systeminformation securityrisk