Duo Security supports a wide range of devices to ensure users can authenticate securely across various platforms. The supported devices include smartphones, tablets, and computers across different operating systems. For mobile devices, Duo Security is compatible with both Android and iOS smartphones and tablets. On the desktop side, the service supports Windows and macOS systems, as well as Linux in some implementations. Duo Security also works with popular web browsers, allowing for seamless integration into the user’s workflow. Additionally, it can be utilized with various hardware tokens and USB security keys for an extra layer of security. It is advisable to refer to the official Duo Security website for the most up-to-date and comprehensive list of supported devices and platforms, as this information may change over time.