Fifteen years after the Stuxnet attack, the cybersecurity community is still struggling to recognize and address cyber threats in industrial control systems, especially those targeting field devices like sensors, actuators, and drives. These attacks can mimic normal equipment failures, making them difficult to detect without specialized forensic capabilities. The lack of awareness and training focused on these components leaves organizations unable to correctly identify incidents as cyber-related, allowing malicious activity to go unnoticed.

Relying solely on OT network monitoring provides a false sense of security because it cannot capture the manipulation or compromise occurring at the device level. Without improved detection methods and incident response capabilities that extend to these critical components, the most vulnerable parts of control systems remain exposed. This blind spot not only limits situational awareness but also leaves critical infrastructure open to the same type of sophisticated attacks that Stuxnet demonstrated over a decade ago.

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Source: https://www.controlglobal.com/blogs/unfettered/blog/55308599/the-hidden-threats-in-control-system-cybersecurity-lessons-from-stuxnet