Microsoft announced today that its agentless security solution for networked IoT and Operational Technology (OT) devices has entered public preview. Azure Defender for IoT is an IoT/OT device threat protection solution that integrates with Microsoft’s Azure Sentinel and third-party solutions (SIEMs, CMDBs, and SOAR) It focuses on providing security monitoring for specialized device types, applications, and machine-to-machine (M2M), as well as specialized industrial protocols (Modbus, DNP3, BACnet, etc.)
Source: https://www.bleepingcomputer.com/news/security/microsoft-releases-azure-defender-for-iot-in-public-preview/