Episode 44 — Explain OT Risk Assessment Frameworks: NIST and ISA/IEC Approaches in Practice

This episode teaches how OT risk assessment frameworks are applied in practice, so you can recognize what a scenario is asking for when it references structured risk work rather than ad hoc judgment. You’ll learn how NIST-style approaches emphasize repeatability, documented controls, and evidence-driven decision paths, while ISA/IEC approaches emphasize zones, conduits, and security levels aligned to industrial architectures and operational needs. We connect both perspectives to the same real objective: identifying risk, selecting controls that fit constraints, and proving that decisions were made deliberately rather than reactively. You’ll practice translating framework language into concrete actions like scoping boundaries, documenting assets and data flows, identifying threats and vulnerabilities, and selecting treatment options with measurable acceptance criteria. Troubleshooting considerations include avoiding framework misuse, such as copying templates without validating reality, forcing IT controls into unsafe environments, or skipping stakeholder input, and learning how to correct course by tying every framework step back to safety, uptime, and defensible evidence. Produced by BareMetalCyber.com, where you’ll find more cyber audio courses, books, and information to strengthen your educational path. Also, if you want to stay up to date with the latest news, visit DailyCyber.News for a newsletter you can use, and a daily podcast you can commute with.