Radiflow iSID provides non-intrusive network monitoring and threat detection for industrial control systems (ICS) and critical infrastructure. It automatically learns network topology and device behavior, generating visual network models while performing deep packet inspection for traffic analysis. The system combines model-based anomaly detection with signature-based vulnerability detection, monitors PLC configuration changes, and conducts attack vector analysis. Supporting both central and local deployment options, iSID helps maintain compliance with IEC 62443 standards and integrates with risk assessment platforms to detect threats early and minimize operational disruptions in industrial environments.