What is the difference and connection between the information security of industrial control system and the network security in the traditional field?

"Safety Risk Assessment of Industrial Control System" With the deep integration of industrialization and informatization and the continuous progress of network technology, the industrial control system, which is relatively closed in the traditional sense and generally considered safe, is facing traditional network security threats such as network attacks, viruses and Trojans. As an important part of the national key infrastructure, once the industrial control system is attacked, it will easily cause problems such as equipment damage and product quality decline, which will affect the national economic and social stability and even endanger national security.