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An SA (Substation Automation) system based on IEC 61850 is an intelligent substation; it has been receiving considerable attention as a core component of a smart grid. The explosive increase of threats to cyber security has been expanded to critical national infrastructures including the power grid. Substation Automation has also become a main target of(More)
Currently, most records are produced and stored digitally using various types of media storage and computer systems. Unlike physical records such as paper-based records, identifying, collecting, and analyzing digital records require technical knowledge and tools that are not found in archival institutions. As a result, archival institutions face challenges(More)
In the past, control system networks were isolated from public external networks, so there was no way to access the control system networks from external networks. Security issues of control system networks were originated and guaranteed by itself. It can be a security by obscurity. Recently, most of devices in the control systems are changing with(More)
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