Episode 49 — Assess Supply Chain Risk in OT: Hardware, Software, and Vendor Dependencies

This episode explains how to assess supply chain risk in OT with a focus on dependencies that can affect safety and uptime long before an organization realizes the risk is “cyber.” You’ll learn to evaluate hardware and firmware provenance, software update channels, licensing and activation dependencies, and the operational risk of vendor-only tools and proprietary protocols that can create single points of failure. We discuss realistic threat and failure patterns such as compromised updates, counterfeit components, unsupported end-of-life devices, and vendor outages that can break remote support or patch distribution, and how those issues show up in exam questions as governance and resilience problems. You’ll learn best practices like approved vendor lists, integrity validation for updates, documented bill-of-materials awareness where feasible, and contingency planning for long lead-time replacements. Troubleshooting considerations include what to do when dependencies are poorly documented, such as building a dependency map from procurement records, system configurations, and operational interviews, then prioritizing the most safety- and availability-relevant dependencies for control and monitoring. 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.