# Amazon IoT Device Defender

Amazon IoT Device Defender is an Amazon IoT security service that allows you to audit the configuration of your devices, monitor your connected devices to detect abnormal behavior, and to mitigate security risks. It gives you the ability to enforce consistent security policies across your Amazon IoT device fleet and respond quickly when devices are compromised.

- [Developer Guide](/en_us/iot-device-defender/latest/devguide/what-is-device-defender.html): Walks through how to set up the service and integrate with other Amazon services.
- [API Reference](/en_us/iot/latest/apireference/Welcome.html): Describes all of the API operations for service. Also provides sample requests, responses, and errors for the supported web services protocols..

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