TRISIS showed that OT threats can hide within normal operations, making early detection essential. Effective defense requires four complementary types of detection: identifying misconfigurations that weaken security, spotting subtle anomalies that signal emerging issues, recognizing unusual behaviors that may reveal malicious intent, and analyzing indicators of compromise that show an attack is underway. Together, these approaches create a strong framework for catching threats at different stages, helping organizations stay proactive and resilient against evolving OT cyber risks.

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