FortiNAC by Fortinet is a zero-trust network access control (NAC) security solution that provides organizations with visibility, control, and automated response capabilities for network connections across IT, IoT, OT/ICS, and IoMT devices. It discovers and identifies all connected devices, controls their access to network resources, and automatically responds to security vulnerabilities. The solution enables network segmentation, device profiling, and automated security responses while integrating with the Fortinet Security Fabric for comprehensive device and user visibility. It supports network infrastructure from over 150 vendors and can classify over 71,000 unique IoT device identities while handling 72+ industrial protocols and applications.