提出一种基于威胁分析的量化风险评估方法，采用多属性决策理论，结合实例，对信息系统的安全风险进行定量分析，为建立信息系统安全保障体系提供科学依据。%A threat-based analysis of quantitative risk assessment methods,the use of multi-attribute decision theory, with examples,the security of information systems for quantitative risk analysis for the establishment of information systems security system to provide a scientific basis.
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