IEC 62443 · Field Notes

September 9, 2025 12 min read data governance

Industrial Data Governance: Owning OT Data

Who owns the data your machines produce, who may see it, and how to keep it trustworthy from the sensor to the boardroom.

November 8, 2022 14 min read IEC 62443

How to cut a processing plant into zones and conduits, set a security level for each, and build a boundary that actually holds.