Two-Factor Authentication (2FA)
2FA requires something you know—your password—along with something you have—your mobile device—when logging in to confirm your identity.
- Two-Factor Authentication (2FA) Overview
- 2FA Quick Start Guide
- 2FA Best Practices
- 2FA Frequently Asked Questions
- How to Log In with 2FA
- Reactivate Duo Mobile on your Smartphone or Tablet
- Switch from SMS to the Duo Mobile App
- Add an Additional 2FA Device
- 2FA Backup Options
- Alternate 2FA Methods and Exceptions
- 2FA Activation Eligibility