1. Information security means that the information system (including hardware, software, data, personnel, physical environment and its infrastructure) is protected from being damaged, changed or leaked by accidents or malicious reasons, the system runs continuously and reliably, and the information service is uninterrupted, which finally realizes business continuity and increases the difficulty of examination.
2. Information security mainly includes the following five aspects: confidentiality, authenticity, integrity, unauthorized copying and the security of parasitic systems. The topics vary from person to person.