Abstracs:In the era of network information,computer network information security technology is widely applied and continuously updated.Computer network information security has confidentiality,integrity,controllability,availability and non-repudiation.Computer network information security often faces problems such as computer viruses,hacker attacks,security vulnerabilities and inadequate hardware configuration.In order to strengthen com-puter network information security from the technical level,it is necessary to master and apply technologies and data security protocols such as antivirus,identity confirmation,firewall,intrusion detection and data encryption.
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