Analysis of Recent IIoT Security Technology Trends in a Smart Factory Environment

Recently, the manufacturing industry is changing into a smart manufacturing era with the development of 5G, artificial intelligence, and cloud computing technologies. As a result, Operational Technology (OT), which controls and operates factories, has been digitized and used together with Information Technology (IT). Security is indispensable in the smart manu-facturing industry as a problem with equipment, facilities, and operations in charge of manufacturing can cause factory shutdown or damage. In particular, security is required in smart factories because they implement automation in the manufacturing industry by monitoring the surrounding environment and collecting meaningful information through Industrial IoT (IIoT). Therefore, in this paper, IIoT security proposed in 2022 and recent technology trends are analyzed and explained in order to understand the current status of IIoT security technology in a smart factory environment.

I. Introduction

The rapid development of cutting-edge manufacturing technologies has led to the era of Industry 4.0 toward smart manufacturing, and the evolution of smart manufacturing is having a profound impact on global manufacturing. Smart factories based on Industry 4.0 combine physical and cyber technologies to enable the use of the Internet of Things, big data, and cloud computing in the manufacturing industry to realize process intelligence and automation.