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The operation security of computer information system includes four aspects: system risk management, audit trail, backup and recovery, and emergency treatment. The operation safety of the system is an important link of the computer information system safety. Only when the safety of the computer information system is guaranteed in the operation process, can the correct processing of information be completed.

The operation security of computer information system includes four aspects: system risk management, audit tracking, backup and recovery, emergency treatment.

The operation safety of the system is an important link of the computer information system safety, because only when the safety of the computer information system is guaranteed in the operation process, can the correct processing of information be completed and the purpose of various functions of the system be achieved.

Computer information system refers to a man-machine system composed of computers and related equipment and facilities (including networks), which collects, processes, stores, transmits and retrieves information according to certain application objectives and rules, namely information management and information system.

Risk analysis is the procedure used to determine the likelihood of a threat and the potential losses due to the vulnerability of the system to attack. It is the basis of the risk management process, and its ultimate purpose is to help select security protection and reduce risks to acceptable levels. Computer information system needs static analysis before design and operation, aiming at discovering potential security risks of the system; secondly, dynamic analysis of the system, that is, testing during the system operation, tracking and recording its activities, aiming at discovering security vulnerabilities during the system operation period; finally, analysis after the system operation, and providing corresponding system vulnerability analysis reports.

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