Abstract

Computer network technology is changing the way people work and study. Computer network has penetrated into our lives and has had a profound impact on our lives. It not only promotes the development of social production in the direction of intelligence, but also the problem of network information security has gradually become a hot issue that people pay attention to. Computer network security is a long-term, arduous and very important system engineering. The network security technology mentioned in this paper is a relatively common and general technology in network security, which can guarantee a certain network security in combination. This paper expounds the definition, existing problems and protection measures of computer network information security, discusses the network information security protection and computer network information security loopholes in the big data environment, and proposes computer network information security countermeasures in the big data environment. With the wide application of computer network communication technology, information security plays an increasingly important role in maintaining social stability, promoting economic development, and safeguarding national security.