SCADA vulnerabilities and attacks: A review of the state‐of‐the‐art and open issues

•SCADA systems are designed with availability as top priority.•Vulnerabilities in SCADA systems are more critical and far reaching than IT systems.•Random forest achieved the highest accuracy rate in UNSW NB15 dataset.•Some existing IT solutions and mechanisms cannot be deployed over the SCADA system.•Datasets need further development for vulnerability analysis.