AI agents are arriving on industrial networks, raising the stakes for OT security: visibility alone isn’t enough. The core challenge is converting full-scope insight into enforceable, production-safe segmentation and least-privilege controls that withstand AI-driven lateral movement without disrupting the line. The piece stresses practical steps—comprehensive asset and flow mapping, prioritizing crown jewels, microsegmentation and identity-based access, staged testing and rollout, continuous monitoring, and incident response tailored to autonomous threats—arguing that platforms will be judged by how reliably they execute this journey.