A shared language for industrial security, and a way to measure every site against it
ISA/IEC 62443 tells asset owners, integrators and product suppliers what good looks like for industrial control systems. SecurityGate.io gives you purpose-built 62443 workflows to assess your security program, plan the improvements and track them site by site.
Most sites know the standard exists. Few can show where they stand against it.
IEC 62443 is not one document but a family of them, written for the different people who build, integrate and run industrial systems. That breadth is its strength, and it is also why so many programs stall. Each plant interprets the requirements a little differently, results are recorded in spreadsheets that cannot be compared, and the improvement plan agreed after an assessment rarely survives the next budget cycle.
For an asset owner, the starting point is usually part 2-1, which sets out the requirements for an industrial security program. From there, parts 3-2 and 3-3 bring in risk assessment, zones and conduits, and target security levels for the systems themselves.
| Part | Written for | What it covers |
|---|---|---|
| 2-1 | Asset owners | Requirements for an industrial automation and control system security program |
| 3-2 | Asset owners and integrators | Security risk assessment, zones and conduits |
| 3-3 | Integrators and asset owners | System security requirements and security levels |
| 4-1, 4-2 | Product suppliers | Secure development lifecycle and component requirements |
How a 62443 assessment is organized, and where the platform fits
The standard asks you to group assets into zones with a common security requirement, and to control the conduits between them. A good assessment follows the same shape: evaluate each zone, record the gaps against target security levels, then plan improvements that close them.
SecurityGate.io's 62443 workflows walk your teams through that process for every site, keep the evidence with each answer, and turn gaps into an improvement plan with named owners that stays current as fixes are validated.
What the platform adds to a 62443 program
Dedicated 62443 workflows sit alongside the other frameworks on the platform, so a site answering IEC 62443 can also be measured against NIST CSF or your own internal standard without a second exercise. Results roll up by site, function and geography for leadership, and controls are mapped to threats and impact levels automatically.
Because product suppliers and integrators have their own 62443 obligations, the same platform can send them assessments too. Their answers land next to yours, so supplier risk is judged against the same standard your own sites follow. SecurityGate.io is also a technical member of ISASecure, the conformance program built on IEC 62443.
Chevron cut the time it spends on OT assessments by 57% with SecurityGate.io.
Chevron case study, published by SecurityGate.ioWho gets the most from it
The platform is built for organizations that run physical operations across more than one site and need a consistent way to measure them.
- Manufacturers
- Multi-plant producers standardizing security across lines and regions.
- Chemical producers
- Operators where safety and security share the same control systems.
- Energy and utilities
- Asset owners combining 62443 with sector rules such as NERC CIP or C2M2.
- Less suited
- Organizations without operational technology, where an IT framework alone is enough.
The part your IT provider plays
your IT provider works with your engineering and security leads to define zones and target levels, runs the first 62443 assessments alongside your site teams, and keeps the improvement plan moving between assessment cycles. You get a platform built for OT and people who know your plants.
See where each of your sites stands against IEC 62443
Start with one site and one workflow, then scale the same measurement across the estate.
Plan Your First AssessmentIEC 62443 part descriptions summarized from the ISA/IEC 62443 series. Vendor figures per securitygate.io, September 2026.
Get in touch with Your Company
Questions about this solution? Reach us directly.