Use Two-Step Login When You're Going to be Without Wi-Fi or Cellular Service
This article applies to: Two-Step Login
During Fall 2025, Cornell is retiring the Duo Phone Call and Duo SMS Passcode methods. Affected campus populations will be notified by direct email about when this change will affect their accounts. To learn more, visit Important Two-Step Login (Duo) Changes, Starting August 2025.
If you do not have access to an internet connection or do not have a smartphone and need to authenticate with Two-Step Login, your choices include:
- USB security key
- hardware token (if you use CU VPN, choose the hardware token)
Need help with these options? Contact the IT Service Desk.
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