IANS Faculty, Justin Searle, teaches cybersecurity professionals how to assess and test Highly Sensitive Networks (HSNs), including building management systems, hospitals, manufacturing plants, industrial control systems (ICS), and other operational technology (OT) networks. These networks are highly sensitive because they often run legacy systems, are difficult to patch or harden, and failures can cause real-world harm (safety risks, production downtime, environmental damage). This interactive training emphasizes safe, staged assessment methods that reduce the chance of disrupting fragile systems.