// service · Assessments

Does this plant OT architecture hold

Zones, conduits, and remote access reviewed against IEC 62443-3-3. You leave knowing which paths would take a line down. Findings become Resilion tasks.

Resilion Effectiveness Score Grid listing control IDs, site names, maturity scores, and effectiveness status.
Resilion · control effectiveness by site · demo data

Most OT architecture reviews end the same way: a heat map and a stack of recommendations land on the CISO’s desk, the findings cannot survive a CapEx review, and the architecture story falls apart at the board. Six months later the plant runs the same risks it ran on day one.

This assessment measures your current architecture against a defensible target, segmentation and zoning, the IT/OT boundary and IDMZ, remote access, and the controls protecting each level, aligned to IEC 62443 and the Purdue model. Every gap is tied to the operation it exposes.

You get a phased, costed architecture roadmap that holds up in front of finance and the board, with the work sequenced into Resilion so design decisions become tracked execution.

// FAQ

Questions about OT architecture and controls assessment

What does the architecture assessment review?
Network segmentation and zoning, the IT/OT boundary and IDMZ, remote access, and the security controls protecting each level, mapped against a reference architecture aligned to IEC 62443 and the Purdue model.
Why do most architecture reviews fail?
They end as a heat map and a stack of recommendations that cannot survive a CapEx review, so the plant runs the same risks a year later. We tie every gap to consequence and a costed, phased plan finance can fund.

See this work on your sites

Book a 30-minute demo. Bring the last assessment and the sites in the first wave.