Advances in International Computer Science

With the rapid development of Industrial Internet of Things (IIoT) technology, traditional PLC control systems are gradually facing increasingly complex security threats. As the core of industrial control systems, PLCs undertake important tasks such as automated production, equipment monitoring, and real-time control. PLC control systems typically lack effective security protection, making them vulnerable targets for hacker attacks and malicious software intrusions. This study aims to explore how to enhance the security of PLC control systems through various security reinforcement measures in the context of IIoT. By analyzing and evaluating existing security vulnerabilities, a series of security reinforcement schemes are proposed, covering measures such as network isolation, authentication, and data encryption. The goal is to construct a more secure PLC control system architecture to ensure the stability and safety of industrial production.

Industrial Internet of Things (IIoT); PLC control system; Security reinforcement; Network isolation; Data encryption