Azure Sphere is a secured, high-level application platform with built-in communication and security features for internet-connected devices. It comprises a secured, connected, crossover microcontroller unit (MCU), a custom high-level Linux-based operating system (OS), and a cloud-based security service that provides continuous, renewable security. With Azure Sphere Catalogs, it is possible to isolate your Azure Sphere devices from devices that belong to other organizations, and provides a way for you to organize your devices. Your Azure Sphere catalog is an aggregation point for metadata, functional organization, and information about images, deployments, users, and roles.