The global market for Industrial Cybersecurity is projected to reach US$22.9 billion by 2025, driven by increasing digital connectivity of industrial systems and processes. Implementation of Industrial Internet of Things (IIoT), machine-to-machine communication (M2M), Industrial Control Systems (ICS) and Cyberphysical System (CPS) allows internet-borne cyber-threats to invade the once protected industrial networks. Industrial digital networks are the foundation for smart factories as they provide the additional intelligence needed for better performance and more flexible manufacturing. Developments in industrial Ethernet standards and protocols such as EtherCAT, EtherNet/IP, PROFINET, POWERLINK, SERCOS III, CC-Link IE, and Modbus TCP, have made industrial networks more robust to support industrial equipment and higher level network functions needed for industrial networking applications. Research efforts continue to be underway for Ethernet time-sensitive networking (TSN). As a resu...