IoT authentication is a model for building trust in the identity of IoT machines and devices to protect data and control access when information travels via an unsecured network such as the Internet.
Strong IoT authentication is needed so that connected IoT devices and machines can be trusted to protect against control commands from unauthorized users or devices.
Authentication also helps prevent attackers from claiming to be IoT devices in the hope of accessing data on servers such as recorded conversations, images, and other potentially sensitive information.