A kind of electricity networks in which various processes are carried out, energy measurements are made with smart meters and there are renewable energy sources and other efficient energy sources called Smart Grids. These grids are consists of generation, transmission and distribution systems. For the smooth operation of it, the conditions of communication, flexibility of control system and smartness of distribution are required. Smart grids can be attacked simply by the penetration of voltage source converters. These attack types include caller ID attack, website, email, IPand, etc. Attacks occur when the attacker acts on behalf of another person or program by forging data. The attacker could be like another person, another computer, another device, etc. can behave like Smart grids have a communication network that spans large areas. Therefore, every component of smart grids can become active in attacks. Network traffic status should be regularly monitored to detect, recognize, control, and evaluate attacks. However, the network must also have the potential to heal itself in the face of attacks.