In brief

Joe Weiss’ article previews his May 2026 Sensors Converge presentation on process sensor cybersecurity, arguing that Level 0 process sensors remain a major blind spot in operational technology security. The presentation is set to cover why these devices are inherently vulnerable, why their risks are often not recognized by cybersecurity organizations, and how incidents involving sensors have contributed to serious operational, safety, and even fatal events without being classified as cyber-related.

The article emphasizes that process sensors provide trusted input to controllers, SCADA, and DCS systems, making their compromise or failure especially consequential. Weiss argues that physics-level monitoring of sensors can improve reliability, safety, and cybersecurity, and that a proper sensor cybersecurity program should involve multiple organizational groups. He also warns that nation-state actors understand these Level 0 weaknesses better than many defenders, while government OT advisories and major cybersecurity forums still tend to overlook insecure process sensors.

Source: Control Global

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