信息安全是信息领域的一个非常重要的课题,如何评价一个信息安全保障系统的安全级别是我们亟待解决的问题,本文将灰色理论引入信息安全风险评估模型,说明了该理论的应用能比较真实的反映信息系统的安全状况。 关键字:灰色理论;信息安全;风险模型 Abstract: The information safety is a very important subject of the information field, how to appraise the security rank of information with systematic security is our problem urgently to be solved. The paper introduces gray theory information to safety risk model and proves the theory can reflect security state of information system. Key words: gray theory; information safty; risk models