AWS IoT is a managed AWS platform for securely connecting Internet of Things devices to the cloud and reliably ingesting, routing, and processing their telemetry and commands. It addresses the core problem of operating large fleets of devices at scale by providing device identity and authentication, encrypted connectivity, and rules that filter and forward messages to downstream services for storage, analytics, or automation. At a high level, devices connect using lightweight protocols, publish messages, and AWS IoT applies policy-based access control and routing so data lands in the right systems without each team building a custom broker, security layer, and integration pipeline.
With AWS IoT, teams can onboard devices consistently, enforce least-privilege access, and monitor communication centrally; without it, device connectivity and security are often implemented ad hoc, increasing operational toil, inconsistent controls, and the risk of data loss or unauthorized access. This gap exists because device fleets require continuous certificate management, scaling message ingestion, and dependable routing under intermittent connectivity.