Mathematics majors can do network security. A solid mathematical foundation is very important for information security, but mathematics is not an obstacle to network security learning. Different security branches have different requirements for mathematical ability. But in a sense, the thickness of mathematical ability determines the height of the professional ceiling in the security field. Network security is included in information security, which also includes operating system security, database security, hardware equipment and facilities security, physical security, personnel security, software development, application security and so on.

1, learning, network security focuses on computer security under the network environment, and information security focuses on the security of computer data and information. Network security pays more attention to the network level, for example, by deploying firewall, intrusion detection and other hardware devices to achieve link-level security protection, while information security is from the perspective of data security protection. Common means include: firewall, intrusion detection, audit, penetration test, risk assessment, etc. Security protection is not only at the network level, but also at the application level.

2. In terms of work, the responsibility of the network security engineer is mainly to analyze the current situation of the network, evaluate and strengthen the security of the network system, and design a secure network solution. In case of network attack or security accident, improve the service, help users recover the system and investigate and collect evidence. According to the customer's network architecture, propose a network security solution. Responsible for coordinating the customized implementation, deployment and development of the solution, and inferring that the solution is online. Responsible for coordinating the pre-sales and after-sales support of the company's network security projects.