Azure IoT Hub is a cloud service provided by Microsoft that enables secure communication between Internet of Things (IoT) devices and the cloud. It allows users to connect, monitor, and manage millions of devices efficiently. With features like device-to-cloud telemetry and cloud-to-device messaging, it supports a wide range of IoT applications. The platform also offers built-in security measures, ensuring that data is transmitted safely. Additionally, Azure IoT Hub integrates seamlessly with other Azure services, allowing for advanced analytics and data processing. This makes it a powerful tool for businesses looking to harness the potential of IoT technology.