What is the significance of maintaining information security?

Information security: It is a kind of work to protect information and information carriers according to their importance, which exists in many countries such as China and the United States. In China, information security is broadly defined as the security of standards, products, systems and information of works according to the idea of classified protection; In a narrow sense, it generally refers to the hierarchical protection of information system security, which refers to the comprehensive work of hierarchical security protection of the proprietary information of national security, legal persons, other organizations and citizens, information disclosure and information systems that store, transmit and process these information, hierarchical management of information security products used in information systems, and hierarchical response and disposal of information security incidents in information systems.