Abstrait

Safeguarding Scada Network by Captious State Based Filter

I.Karthika, Mr. M. Mohamed Musthafa

SCADA (supervisory control and data acquisition) is a type of industrial control system (ICS). It’s a centralized system that monitors and control industrial processes that exist in the physical world. The system consists of centralized computer, communication device, Programmable logic controllers, sensors put together to monitor, control and process a system. This system is used to automate a complex process. They work in Master – Slave basis. This system is widely used in Power plants, traffic light control, power plants, etc., As it is a centralized system storing lot of data, there is chance for the attackers to hack the information. In the existing system, a special filtering system is used which acts as a firewall for the SCADA network. System is prevented from hackers by analyzing the state of the system. It involves the prediction of finding whether the system is close to the critical state. If it is so, the filtering system will block the packets. Only attack by the hacker is prevented. Any Software problem is not rectified. Proposed system identifies the intentional and unintentional software errors using ladder logic code.