In computer security,automatic termination and protection of programs and/or processing systems when a hardware or software failure is detected in an automated information system.

• 在计算机保安技术中，自动化信息系统发现硬、软件故障或错误时，为使系统不致于瘫痪而自动终止程序或处理系统的运行，以便保护它们。