Abstract
Cybersecurity is a critical component of technology and must be considered
during the early stages of the development of any system. Cyber security issues and
challenges faced by IIoT are discussed in this paper. The first section of this paper
focuses on Industrial Control System (ICS) environments where IIoT are deployed to
understand the nature of business and technology companies with IIoT networks,
followed by a comparison to understand the difference between Operational
Technology (OT) and Information Technology (IT) networks and how both can be
used to serve the need of business requirements. This paper evaluates the state of cyber
security in industrial networks and IIoT and the safety and privacy concerns found in
the literature. Solutions and improvement techniques introduced to cyber security
functions mainly focus on prevention, detection, and response. Moreover, IoT
organisational and operational security and cyber threat intelligence are also discussed.
Finally, an approach is presented on how to conduct a security assessment on IIoT
environments safely.