IT networks have traditionally been a favorite target of would-be attackers and malicious actors. By taking advantage of vulnerabilities, weak security policies, and various other attack methods, "bad guys" have infiltrated business networks, causing havoc and disarray for administrators.
On the other hand, Operation Technology or control networks have been immune to these types of attacks. Due mainly to the physical separation between IT and OT networks known as "air gaps." These air gaps allowed control engineers to operate their OT networks in a separated Ethernet space, creating a virtually impenetrable barrier with free rein and no concern about cyber-attacks outside the plant.
However, with the introduction of Industry 4.0 or the Industrial Internet of Things (IIoT), technologies that all changed...
