MON5hield is a cybersecurity monitoring platform designed for operational technology (OT) environments and critical infrastructures. The solution provides real-time monitoring of industrial networks through hardware probes with centralized management, utilizing both active and passive monitoring approaches. The platform offers asset discovery capabilities to identify and catalog all devices and systems in OT infrastructure, providing complete visibility of network assets. It includes continuous network activity monitoring to detect anomalous behaviors, threats, and malfunctions in real-time. MON5hield addresses OT compliance requirements, specifically supporting NIS2 directive compliance with focus on network structure and segmentation. The platform includes vulnerability management functionality to identify and prioritize weaknesses in industrial devices and systems based on risk assessment. The solution operates through strategically distributed hardware probes that enable identification and classification of IIoT devices, OT systems, and connected IP systems. The passive approach observes network traffic without interference, while the active approach includes direct device interrogation when necessary for detailed information gathering. MON5hield serves multiple industrial sectors including aerospace, manufacturing, automation, and energy production. The platform is designed for environments with PLCs, machinery, and connected work centers, addressing security challenges in heterogeneous industrial environments with equipment of varying ages and technologies.