Duo Mobile App vs. Duo Hardware Token

This article provides an overview of Duo authentication options at Idaho State University (ISU).

• Duo Mobile App
• Duo Hardware Token

The Duo Mobile app is the recommended authentication method for most users because it is fast, convenient, and easy to manage from a smartphone or tablet.

Key Advantages

1. Free to use.
2. One-tap push approvals make logins quick and simple.
3. Ability to generate passcodes even when offline.
4. Supports multiple Duo-protected accounts.
5. Easy self-service setup.
6. No extra hardware to carry.

Things to Consider

1. Requires a smartphone or tablet.
2. Mobile devices may not be permitted in certain secure areas.

A Duo hardware token is a small physical device that generates one-time passcodes for authentication. It is designed for users who cannot use a smartphone or work in environments where phones are restricted.

Key Advantages

• Small and portable (but requires carrying a separate device).
• No Internet or phone service is needed. 
• Works in areas where phones are not allowed.

Things to Consider

• Costs ISU (hardware and management).
• Slower (entering manually generated codes)
• Requires a small, standalone token that must be carried separately. 
• Limited to one code generation only.
• Requires physical setup and replacement if lost or damaged.