Duo

Information on two-factor authentication, device enrollment, configuration, and troubleshooting.

Categories (3)

Android

Knowledge base articles for android devices and Duo
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Apple

Knowledge base articles for Apple devices and Duo
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Troubleshooting Guides

General troubleshooting guides for Duo Mobile and Push
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Articles (12)

Authenticating with the Duo Prompt

Overview of authentication using the Duo Prompt.

Duo Enrollment Guide

Overview of Duo enrollment

Duo Restore

Overview of Duo Restore

Duo-Protected Applications VS. Third-Party Accounts

Duo-protected versus third-party applications. What's the difference?

Managing Your Devices on Duo

Overview of managing, adding and removing devices on Duo.

Multi-Factor Authentication for VDI Access

Accessing VMWare Horizon Clients with Duo TFA Prompts

Security Keys and Duo

Overview of Security Keys and Duo

Software Update Notifications

Knowledge base article about software update notifications from Duo

Supported iOS and Android Versions for Duo Mobile

Duo Mobile requires supported versions of iOS and Android to maintain security and reliability. As of April 16, 2026, Duo Mobile will no longer support iOS 16 or Android 11. Users should update their mobile devices to iOS 17 or Android 12 (or newer) to continue receiving security updates and full support.

Third-Party Accounts and Duo

Two-Factor Authentication (TFA)

Introduction to two-factor authentication and Duo.

Using Duo with a Hardware Token

Overview of Duo with a Hardware Token