Episode 17 — Handle Building Automation Networks: BACnet, KNX, and Profinet in Mixed Environments

This episode explains why building automation and industrial automation frequently overlap in modern facilities, and how that overlap creates security and operational decisions that show up in realistic exam scenarios. You’ll learn what BACnet and KNX are used for, how they support control of building systems, and why legacy deployment patterns can leave them exposed through broad broadcast behavior, weak authentication, or unmanaged gateways. Profinet is introduced as a common industrial networking approach you may see in mixed environments, emphasizing that “mixed” does not just mean more devices, but also more stakeholders, more change windows, and more paths for an IT-to-OT pivot if boundaries are poorly defined. We cover best practices such as zoning, documented gateways, strict remote access controls for vendors, and monitoring strategies that respect performance and safety constraints. Troubleshooting considerations focus on identifying which network you are actually dealing with, isolating symptoms to a segment without causing outages, and choosing remediations that improve security while still supporting facility operations and lifecycle maintenance. 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.