SCADA systems and applications provide cybersecurity for critical infrastructure systems by using hardware and software components to control and monitor sites. To support critical infrastructure systems, SCADA systems have evolved from independent distributed systems to open architecture systems, networked systems, and eventually adapted to work with modern Structured Query Language database systems (RealPars, n.d.). This has been necessary because infrastructure networks have become more connected to technology, which has made entire networks more exposed to potential cyber risks, vulnerabilities, and threats.
Critical Infrastructure Vulnerabilities
Since more critical infrastructure systems have moved to internet-based networks, they have increased their vulnerabilities because of the need to communicate information over wider areas. This digital change through IoT and industrial control systems has allowed critical facilities to gain efficiency. However, it has also expanded the opportunity for cyber-attacks on the most critical systems. The dependencies between computer communication systems and the physical infrastructure have become more complex as information technologies are further integrated into devices and networks (George, Baskar, & Srikaanth, 2024). Cybercriminal and terrorist groups are a threat to critical infrastructure because they can disrupt essential services, make money, and cause economic harm.
These critical infrastructure systems are especially vulnerable because of this need to use the internet, the lack of investment in updating systems, and insecure remote access. This occurred with the 2021 cyber-attack by a group called the DarkSide on the largest oil pipeline in the United States. The group was able to get into the company’s system through an unused account and deploy ransomware into the network (Olorunlana & Mohammed, 2025). As a result, the company had to shut down, fuel prices increased due to panic buying, and the company paid a ransom of $4.4 million to the attackers.
The Role of SCADA in Mitigating Vulnerabilities
SCADA, which stands for supervisory Control and Data Acquisition, are industrial control systems (ICS) used to monitor and control sites. These industrial locations include infrastructure, facility-based, and industrial processes (SCADA Systems, n.d.). With SCADA information about systems across large areas can be sent to a central location. The data allows users to detect in real time problems and react to minimizing issues. This is important because critical infrastructure systems are essential systems. They include important infrastructure such as energy, water, transportation, telecommunications, and cloud networks, which are key for safety and security. SCADA systems use data to continuously control and monitor critical infrastructures for efficiency, problems, and cyber-attacks.
Control and Monitoring
SCADA helps to control and monitor systems by sending data logs to Remote Terminal Units (RTUs) and Programmable Logic Controllers (PLCs) letting them know about system activities. This information can be analyzed before incidents to determine the effectiveness of the system being monitored. In the case of an attack, the data provided by the SCADA system can identify and access the threat in real time instead of hours after it has happened. Additionally, after the threat has been addressed, SCADA can help improve the security controls of the critical infrastructure system. The logs can help cybersecurity by letting organizations review the event and detect weaknesses to update and strengthen the system. This information can lead to ongoing system testing and planning for cyber threats and vulnerabilities.
SCADA and Cybersecurity
SCADA systems now work with cybersecurity standards. Standards on how to secure SCADA systems have become part of the NIST support cybersecurity such as the NIST Cybersecurity Framework. NIST has developed a guide for the industrial control systems that has identified countermeasures in the case of a cyber threat (Sommestad, Ericsson, & Nordlander, 2010). The Framework along with security strategies such as network segmentation, data encryption, and multifactor authentication work together to protect SCADA hardware and software.
Conclusion
In conclusion, as critical infrastructure systems have become more complex and rely more on the internet to operate efficiently, their networks have become more vulnerable. SCADA is important for mitigating these cyber-attacks and threats because of the ability to control and monitor the industrial control systems for utilities like water plants, oil pipelines, and power facilities. The data on the status of equipment like motors, pumps, sensors, and valves lets SCADA systems and applications provide cybersecurity for critical infrastructure systems by using hardware and software to mitigate vulnerabilities on the critical systems.
References
George, A. S., Baskar, T., & Srikaanth, P. B. (2024). Cyber threats to critical infrastructure: assessing vulnerabilities across key sectors. Partners Universal International Innovation Journal, 2(1), 51-75.
Olorunlana, T., & Mohammed, H. (2025). Analysis of the Colonial Pipeline Cybersecurity Incident.
RealPars. (n.d.). What is SCADA?. YouTube. https://www.youtube.com/watch?v=nlFM1q9QPJw&t=306s.
SCADA Systems. (n.d.). From http://www.scadasystems.net/.
Sommestad, T., Ericsson, G. N., & Nordlander, J. (2010, July). SCADA system cyber security – A comparison of standards. In IEEE PES general meeting (pp. 1-8). IEEE.