信息系统的安全威胁分成七类，其中不包括 （ ） 。
- A.自然事件风险和人为事件风险
- B.软件系统风险和软件过程风险
- C.项目管理风险和应用风险
- D.功能风险和效率风险
正确答案及解析
正确答案
解析
信息系统的安全威胁分类有多种方法：从风险性质分，可以简单分为静态风险和动态风险。静态风险是自然力的不规则作用和人们的错误判断和错误行为导致的风险；动态风险是由于人们欲望的变化、生产方式和生产技术的变化以及企业组织的变化导致的风险。从风险的结果划分，可以分为纯粹风险和投机风险。纯粹风险是当风险发生时，仅仅会造成损害的风险；而投机风险是当风险发生时，可能产生利润也可能造成损失的风险。从风险源的角度划分，可以划分为自然事件风险、人为事件风险、软件风险、软件过程风险、项目管理风险、应用风险、用户使用风险等。
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