Zero Trust for Operational Technology
The practitioner's reference for implementing Zero Trust architecture across industrial control systems, critical infrastructure, and cyber-physical environments.
ZeroTrustOT.com is a vendor-neutral reference resource for security practitioners responsible for protecting industrial and cyber-physical environments. It covers Zero Trust architecture principles as applied to OT networks, compliance frameworks governing critical infrastructure, system-by-system implementation guidance, and the competitive vendor landscape. The content is written for engineers and security architects who already understand the fundamentals and need specific, applicable guidance — not marketing summaries.
This site is not affiliated with any cybersecurity vendor. References to products, platforms, and market participants are factual and editorial, drawn from public filings, analyst research, and standards body publications. Content is updated as the regulatory landscape and vendor market evolve.
Five Content Pillars
Zero Trust OT Framework
The architecture fundamentals: how Zero Trust principles apply to Purdue Model environments, IT/OT convergence challenges, and ISA/IEC 62443 alignment.
→ Read the FrameworkCompliance Center
NERC-CIP, NIS2, TSA Security Directives, IEC 62443, and NIST SP 800-82 — the regulations driving OT security investment across critical infrastructure sectors.
→ Browse RegulationsOT Systems Reference
SCADA, DCS, ICS, MES, BMS, EMS, CMMS — system-by-system Zero Trust control architecture for the technologies that run physical operations.
→ Explore SystemsVendor Landscape
Neutral capability mapping of leading OT security platforms across energy, manufacturing, healthcare, and government verticals.
→ View LandscapeMarket Intelligence
OT security market sizing, notable transactions, regulatory timelines, and competitive dynamics shaping the sector through 2026 and beyond.
→ Market Data