After decades of development

the internet has brought tremendous changes to all walks of life

especially in the industrial field. This paper mainly introduces the network form and existing security problems of small and medium-sized enterprises and large-scale enterprises in the traditional internet era

as well as the new development mode and hidden security risks brought by the emergence of various new internet technologies. With the advent of the industrial internet era

the traditional industry is facing the change of new production mode. We need to use new thinking to think about security issues such as assets

loopholes

risks and so on.