Including user password authentication, user access rights control, data access rights, way control, security audit. Security issues follow step. Computer virus prevention and control, data encryption and so on. Information dissemination security information dissemination security on the network, that is, the security of the consequences of information dissemination, including information filtering and so on.
Information security in the network mainly includes two aspects: information storage security and information transmission security. Information storage security refers to how to ensure that information statically stored in networked computers will not be illegally used by unauthorized network users.
Physical security: including environmental security, equipment security and recording media security. Environmental security involves the central computer room and communication line security protection; equipment security involves equipment theft prevention and destruction, the safe use of equipment and other issues; record media security involves the use of security and management security issues.
Network security involves computer science, network technology, communication technology, cryptography, information security technology, applied mathematics, number theory, information theory and other disciplines of a comprehensive discipline.
Network security includes the following aspects: operational system security: that is, to ensure the security of information processing and transmission systems. It focuses on ensuring the normal operation of the system. Avoiding damage and loss to the messages stored, processed and transmitted by the system because of system collapse and damage.
Five attributes of network security: confidentiality, integrity, availability, controllability, and non-repudiation. These five attributes apply to the National Information Infrastructure (NII) in the areas of education, entertainment, healthcare, transportation, national security, power supply, and communications.