Encyclopedia's definition of information security means that the information system (including hardware, software, data, personnel, physical environment and its infrastructure) is protected from being destroyed, changed or leaked due to accidents or malicious reasons, and the system runs continuously, reliably and normally, without interrupting information services, and finally realizes business continuity. Information security mainly includes the following five aspects: the need to ensure confidentiality, authenticity, integrity, unauthorized copying and the security of parasitic systems.

By object: it can be divided into personal information security, enterprise information security, and more importantly, information security of state institutions.

Like personal information security, it is mainly to prevent the disclosure of personal privacy information and the security of identity information, bank cards, account passwords and other information.

In terms of enterprise information security, it is necessary to ensure that enterprise information will not be leaked through internal, and at the same time, it will not be leaked because of external network intrusion. Internally, it is mainly to control the leakage caused by employees' intentional or unintentional irregular behavior. At the same time, the company's internal network security measures are not in place, which easily leads to illegal personnel invading through the external network. LeagView operation and maintenance system of Liansoft Technology can provide a complete information security solution for enterprises, standardize employees' behavior through system settings, and guide employees to do the right thing. At the same time, the security policy of the system can ensure the secure data exchange with the outside world.