Journal of Information Organization Raja Mouachi, Fatima Gharnati, Mustaph Raoufi 7 3 2017 http://www.dline.info/jio/fulltext/v7n3/jiov7n3_1.pdf Smart grid is a term referring to the next generation power grid in which the electricity distribution and management is upgraded by incorporating advanced two-way communications and pervasive computing capabilities for improved control, efficiency, reliability and safety. The smart grid is a network of networks, including a variety of sub-systems. One subsystem which is at the core of smart grid systems is the Supervisory Control And Data Acquisition (SCADA) solution. The objective of the paper is to develop a method uses a hybrid of the advanced Encryption Standard (AES) and the Elliptic Curve Cryptography (ECC) to Secure SCADA in Smart Grid. Because without a secure SCADA system it is impossible to deploy the intelligent smart grid systems.