Anariea Whiting
CYSE 200T
Professor Duvall
April 8, 2026

BLUF: SCADA is an industrial control system that utilizes specialized hardware like RTUs and
PLCs as well as communication infrastructure to monitor and coordinate a big range of
infrastructures like faculty, or industrial processes through a centralized supervisory system.

What is SCADA?
SCADA stands for “Supervisory Control and Data Acquisition”. These systems are essential to a
wide range of industries and are broadly used for controlling and monitoring processes. They are
prominently used because they have the ability to control, monitor, and transmit data in a smart
and seamless manner.

SCADA Architectures
The first generation of SCADA used independent mainframe computers that lacked outside
network connections. These systems depend on proprietary protocols and physical backup
mainframes to maintain control.

The second generation used Local Area Networks to share real-time data across multiple
stations. This shift reduced equipment costs and spread processing tasks across a wider
network.

The third generation connects systems to the internet using standard Wide Area Network
protocols like IP. While this connectivity increases potential cyber vulnerabilities, it also allows
for the application of modern, standardized security improvements.

SCADA Security Issues
SCADA systems are high stakes to go for cyberwarfare because their failure could impair
essential services like water and electricity. Major vulnerabilities exist through unauthorized
software access and unsecure network protocols using specialized industrial firewalls and
whitelisting.

Conclusion
In conclusion, SCADA is a centralized system used to monitor and coordinate critical
infrastructure like power and water through specialized hardware and softeware. While its
architecture has transitioned from being isolated from mainframes to networked internet
systems, it faces a significant cyber threat that requires specialized security like industrial
firewalls.