What do you mean by information security landing?

Information security landing refers to

The hardware, software and data in the information network system are protected from accidental or malicious reasons, and the system runs continuously, reliably and normally without interrupting information services.

Information security is a comprehensive subject involving computer science, network technology, communication technology, cryptography technology, information security technology, applied mathematics, number theory, information theory and other disciplines.

Broadly speaking, all technologies and theories related to the confidentiality, integrity, availability, authenticity and controllability of information on the network are the research fields of network security.