Research on Computer Network Security and Its Countermeasures

With the continuous development of economy and science, computer network has become an indispensable part of people's life and work. The big data age requires us to master computer skills and make use of large data to help us more easily and comfortably, but everything has its double side. After the computer network technology has helped us get more comfortable and convenient working environment, the network security problems also follow, some people start to use the loopholes in the network to steal information, causing network security problems, and people's work and life have also brought great worries, if personal data is out of the outside. Therefore, there is no guarantee for personal safety and property safety. How to solve the problem of computer network security at this stage is what we are most concerned about.