The rapid development of the Internet has also accelerated the growth of the Internet of Things, IOT. The isolated systems have been transformed to open ones by the key infrastructures of IOT which has been made the operation of the entire system more convenient. But relatively, the security of key infrastructure will face unprecedented threats. Therefore, it is necessary to establish a safe and secure way for the Industrial Control Systems, ICS, to operate through remote control. In other words, it is necessary to understand in depth the tools that can protect the country's economy and security of the system and prevent attackers from invading the ICS system or avoiding at-tacks on ICS systems. This study will explore the current tools and technologies used to discover ICS system vulnerabilities and provide alternative methods to protect SCADA system security.