A Review of Cyber Security Assessment (CSA) for Industrial Control Systems (ICS) and Their Impact on the Availability of the ICS Operation

The equipment in industries in this digital age is controlled by systems connected via internet either wired or wireless connectivity. This technology is demanded in almost all organizations to perform their daily industrial operations. Hence, the system must run without any failure and the rate of system availability is a priority. Most importantly, the entire system must be secured from cyber security threats, vulnerability, and risks so as to ensure that the system is not exposed to the possibility of any cyber attack. Thus, initial security assessment must be conducted to ensure the security aspect of the system. Nevertheless, the evaluation shall not impact the system's regular operations. As such, the study reviews and discusses the Cyber Security Assessment (CSA) for Industrial Control Systems (ICS) and their possible effect on the availability of ICS operations.