below, it shall install water leak sensor in the place where has installed a water pipe in order to suppress leak water instantly. Moreover, in case of the computer centre located in the place having risk

should be physically solid and should not expose any information related secured areas to the public; 2. The intermediary should grant access right to enter the secure areas for only relevant persons

following businesses: (a) rail or pipe transportation system; (b) electricity; (c) water supply; (d) road, toll road or concession road; (e) airport; (f) deep sea port; (g) telecommunication or information