SCADA systems are essential to maintaining a functioning business. They do not only have the potential to protect the wallet and functionality of a company, but the lives of the employees working there. Scada systems also impact public safety and our ability to live “normally”.
SCADA Uses
SCADA systems monitor digital infrastructure processes and physical processes. SCADA can be used to alert users when there is cause for concern. “For example, when the fuel tank of a car is empty, the alarm is activated, and the light signal is on.” (Scada systems pg. 2) Along with monitoring the processes going on, SCADA systems control processes that are not suited for direct human control. When humans are needed they are able to read outlines on how to perform tasks via a Human Machine Interface linked to the SCADA system. Having this in place, along with the proper training, ensures a clear understanding of how processes should be done, thus allowing for a stable running environment.
Trends
“Legacy SCADA systems operated on isolated networks that made them less exposed to internet threats.” (A Survey on SCADA Systems pg. 1) Modem and radio connections were used to communicate information. As time has gone on, SCADA systems began to become interconnected to things like the internet and other system networks. The expansion of SCADA systems leaves them vulnerable to cyber attacks that could be detrimental. Packet control, or the lack thereof, allows any source sending packets to a SCADA device the ability to control it. A more everyday example would be traffic control. Traffic lights are regulated through a type of SCADA system, therefore unauthorized access to that system could cause injury and loss of life to those on the road. It is because of threats like this that systems must be monitored closely.
Conclusion
In closing, SCADA systems affect many processes in society that are not always thought about. The different pieces and protocols account for different responsibilities within the network. Although these systems are automated, the more SCADA expands the higher cause for security concerns. If they are not monitored and secured they could cause problems for company production and public safety.
References
SCADA systems. SCADA Systems. (n.d.). Retrieved March 19, 2023, from http://www.scadasystems.net/
Pliatsios, D., Sarigiannidis, P., Lagkas, T., & Sarigiannidis, A. (2020). A Survey on SCADA Systems: Secure Protocols, Incidents, Threats and Tactics. IEEE Communications Surveys and Tutorials, 22(3), 1942-1976.