IEC 62443 for Identity People: What It Asks You to Do
IEC 62443 secures industrial control systems. For identity teams, FR1 and FR2 set the bar: unique IDs, MFA by security level, and role-based use control.
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OT & Critical Infrastructure Security
Where an outage is a safety event, not a ticket. Identity below Purdue Level 3, vendor and engineer remote access, IEC 62443 and NERC CIP.
Articles
IT/OT Convergence: Where Identity Gets Caught in the Middle
IT/OT convergence connects plant systems to business networks and the cloud. Here's what it changes for identity and access, and how to converge safely.
What Is PKI? A Practitioner's Guide to IT and OT PKI
PKI (public key infrastructure) is the CAs, certificates, keys and policies that let machines and people prove identity. Here's how it works in practice.
Purdue Model for Identity: What Breaks Below Level 3
The Purdue model splits OT networks into levels 0–5 plus an IDMZ. Here's what identity and access look like at each level, and why IT patterns break.
What Is OT Security? An Identity-First Primer
OT security protects the systems that run physical processes. What makes it different from IT security, and why identity is the place to start.