Duo 2FA - Removing Old Devices
This document will explain how to remove devices you no longer have possession of from Duo 2FA.
When you no longer are in possession of a device, you should remove it from your authorized login devices to prevent another person from requesting a phone number from a phone company that may be your old phone number.
Steps to remove a device
Login to the Duo Device Management Portal. To access the Duo Device Management Portal, navigate to mynetid.wisc.edu/duo-portal.The page will ask you to authenticate with your NetID, password, and complete a two-factor authentication with a device you have already saved.
For the device you would like to remove, select Device Options.
Select the red trash can icon.
Confirm that you are intentionally removing the device by selecting Remove on the confirmation dialog.