Study on cyber security assessment for wireless network at nuclear facilities

The fourth industrial revolution has become an major issue of recent year and also impacting the field of nuclear facilities that research of introducing the latest Internet of Thing(IoT) technologies such as sensor-networks communication is being conducted. Especially, research and study for applying wireless network technology to safety-related and emergency preparedness systems in nuclear facilities are being conducted as well. However, wireless it is hard to apply physical access control on the wireless network using frequency. If digital systems of nuclear facility are compromised by cyber attack, public safety were not be guaranteed. From this point, the cyber security assessment must be performed when applying wireless network technologies to the systems in the nuclear facility. This study is to analyze and develop the cyber security assessment methodology with wireless network at nuclear facilities. We analyzed the cases of wireless network attacks broadly known in critical infrastructure and public facilities, and draw out the requirements and inspection activity in the cyber security assessment that must be checked in the wireless network. The requirements and activities presented in this paper are able to be the reference to establish the policy and guidelines for cyber security assessment when the nuclear facilities are applying the wireless network technology into the field.