A welding cell that used to run on an isolated PLC network now pulls setpoints from a cloud-connected AI optimizer, and a vision inspection station that used to be a closed loop now streams frames to a model server two subnets away. Every one of those new connections is a new path into a control system that was never designed to be reached from outside the plant, and most OT networks still trust anything already inside the fence. IEC 62443 exists precisely because AI adoption keeps adding doors that segmentation and zero-trust design have to keep locked, and you can book a demo to see how iFactory maps that standard onto your own plant network.
AI Is Opening New Doors Into Your Control Network — IEC 62443 Is How You Keep Them Locked
iFactory maps your production network against IEC 62443 zones and conduits, flags every AI-driven connection that crosses a trust boundary, and enforces segmentation before a single new integration goes live.
Every AI Integration Is a New Conduit, and Most Plants Cannot Say How Many They Already Have
Ten years ago an OT network's biggest risk was a contractor's infected laptop plugged into a maintenance port. Today it is a predictive maintenance model pulling live vibration data, a vision system streaming frames to a GPU server, and a supplier's remote monitoring tool that was never formally reviewed by the security team. Each of these is a legitimate business need and also a new conduit that IEC 62443 says must be identified, zoned, and controlled, yet most plants added them faster than their security documentation could keep up.
Why Bringing IT Security Tools Straight Onto the Plant Floor Backfires
IT security assumes you can patch overnight, reboot on demand, and tolerate a few seconds of added latency for inspection. None of that is true for a press line or a robot cell running a shift, which is exactly why IEC 62443 defines a separate model built around zones, conduits, and security levels rather than the perimeter-and-endpoint model IT teams already know.
See Your Own Network Mapped Against IEC 62443
iFactory scans your existing plant network, identifies every AI-related conduit, and shows you exactly where a zone boundary is missing or under-controlled.
Four Layers of Control That Keep AI Traffic From Becoming a Backdoor
Rather than bolting a firewall onto whatever already exists, the platform builds security around the specific paths AI systems actually use to reach the plant floor, so protection follows the real risk instead of a generic checklist.
Every PLC, HMI, drive, sensor gateway, and AI edge device on the network is discovered and classified automatically, closing the gap between what the diagram shows and what is actually running.
Traffic between the enterprise zone, the AI/DMZ layer, and each cell zone is routed through defined conduits with policy enforcement, so an AI service cannot silently gain a direct path to a controller.
Baseline traffic patterns for each zone are learned over time, and deviations, including a device suddenly talking to a new destination, are flagged for review before they become an incident.
Known vulnerabilities on OT assets are scored by actual exploitability in your environment, not generic CVSS alone, so maintenance teams patch the highest-risk items first without waiting for a full outage window.
Where Each Zone Sits Today Against the IEC 62443 Security Level Scale
IEC 62443 defines target security levels from SL 0 to SL 4 based on the sophistication of attacker a zone needs to withstand. Most plants have zones sitting at different levels depending on what is inside them, and closing the highest-risk gaps first matters more than treating every zone the same.
| Security Level | Attacker Resistance | Typical Zone |
|---|---|---|
| SL 1 | Casual or coincidental exposure | Enterprise business systems |
| SL 2 | Intentional violation with basic means | Plant-wide historian and reporting layer |
| SL 3 | Sophisticated attacker with moderate resources | AI/DMZ gateway handling cross-zone traffic |
| SL 4 | Extended, well-funded attacker campaign | Safety-critical cell and area zones |
Outcomes Reported After Deploying IEC 62443-Aligned Segmentation
The figures below reflect results tracked across automotive plants that moved from flat or partially segmented OT networks to a zone-and-conduit model enforced by the platform, measured over the first year following deployment.
Moving From Flat Network to Zoned, Monitored Architecture
Discover and Classify Assets
Passive network scanning builds a full inventory of PLCs, drives, sensors, and AI endpoints without disrupting production traffic.
Define Zones and Conduits
Assets are grouped into zones by risk and function, and every legitimate cross-zone path is documented as a conduit with an owner.
Enforce and Monitor
Policy enforcement is applied at each conduit, and traffic is monitored continuously against the learned baseline for each zone.
Extend to New AI Integrations
Every future AI or remote monitoring integration is reviewed against the zone model before it is connected, not after.
Questions Plant IT and OT Teams Ask About IEC 62443 Adoption
Close the Gaps Before an AI Integration Becomes an Attack Path
iFactory maps your plant network against IEC 62443, enforces zone and conduit boundaries, and keeps every AI connection monitored from day one.
