A review on the readiness level and cyber-security challenges in Industry 4.0

The paper pertains to the cyber-security challenges in Industry 4.0 that cyber-security experts have to deal with nowadays. Due to the nature of Industry 4.0, where all devices in manufacturing technologies are interconnected, exchanging data and information with each other, broadens the cyber-lands horizons for cyber-criminals to exploit them in their interest. The paper makes reference to the industrial control system's modern history and provides information on key technologies, i.e. Internet of Things and cyber-security. Then real case studies are presented and suggestions for effective cyber-security are presented.