Distributed Denial of Service (DDoS) attacks aimed at disrupting industrial control systems (ICS) and supervisory control and data acquisition (SCADA) systems often leverage techniques like TCP SYN floods, UDP floods, and DNS amplification attacks. These methods overwhelm targeted servers with malicious traffic, preventing legitimate requests from being processed. For instance, a TCP SYN flood could inundate a power grid’s control system, hindering operators from managing electricity distribution. Other, more sophisticated attacks might exploit vulnerabilities in specific industrial protocols like Modbus or DNP3.
Protecting industrial infrastructure from these threats is critical for maintaining essential services such as power generation, water treatment, and manufacturing processes. Disruptions to these systems can have significant economic consequences and pose risks to public safety. The increasing convergence of information technology (IT) and operational technology (OT) networks has expanded the attack surface, making industrial environments more susceptible to cyberattacks previously confined to the IT realm. Consequently, robust security measures tailored to industrial environments are now more crucial than ever.
