---
title: "Authenticate with Duo"
canonical: "https://tech.calpoly.edu/space/CPKB/3178597/Authenticate%20with%20Duo"
format: markdown
---
Select an authentication method to access the My Cal Poly Portal, Cal Poly Canvas, Microsoft email and calendar, and all other web-based services that require a log-in. When adding or [managing a device](https://calpoly.atlassian.net/wiki/spaces/CPKB/pages/3637371), you will first be prompted to authenticate. 

> ℹ️ If this is your first time using Duo, visit [Set up Multi-Factor Authentication (Duo)](https://calpoly.atlassian.net/wiki/spaces/CPKB/pages/3539066).

|  |
| --- |
| ![Duo Push](media://dc9c9a24-d574-42c0-a275-425eb259281c)<br>[Duo Mobile (Push)](https://calpoly.atlassian.net/wiki/spaces/CPKB/pages/1199309126) is the   
<span style="color: #006644">**RECOMMENDED primary method.**</span> |
| > Macro (inline-media-image)

  
[Touch/Face ID on Mac](https://calpoly.atlassian.net/wiki/spaces/CPKB/pages/1182957880):   
Using a biometric authenticator.  
<span style="color: #bf2600">**DO NOT USE as primary. **</span> |
| ![Phone Call or Duo Mobile Passcode](media://d3822885-a654-4263-92c4-6a6c0d436e64) |
| ![Security Key](media://cca52d5c-55a8-496b-9406-c48851a00815) |
| ![Hardware Token](media://87a3c2f6-9767-4ece-8aa3-f57e1cfb904b) |