While different components of the power infrastructure ofthe smart grid are networked together to exchange information,as illustrated in Fig. 1, there is a potential increase of thesecurity risk of the system. For example, it will increase thecomplexity of the electrical power grid, which in turn canincrease new security vulnerabilities. Also, the number ofentry points that can be used to gain access to the electricalpower system will increase when all of the components arenetworked together [1, 3].
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