AWS IoT is a managed AWS platform for securely connecting Internet of Things devices to the cloud and ingesting, processing, and acting on their data. It addresses the common challenges of device identity, authentication, encrypted connectivity, and scalable message routing by providing services that let devices publish telemetry and receive commands over standard protocols, then apply rules to filter, transform, and forward messages to downstream AWS services for storage, analytics, and automation. With AWS IoT, teams can onboard fleets, enforce consistent security policies, and operate at scale with centralized monitoring; without it, they often end up building and maintaining custom brokers, device credential systems, and ingestion pipelines, increasing security risk, operational toil, and time to deliver features. This gap exists because reliable device connectivity and lifecycle management are hard to implement correctly across diverse hardware and intermittent networks.