Unpair One or More Devices from macOS

To Unpair a Single Device from MacOS Login

1. Open Terminal.
2. Run the sudo sc_auth list <user> command.
   NOTE

   If working with the currently-logged on user, use $(whoami) for the username. You do not need elevated privileges (sudo).
3. Highlight and copy the hash listed for your user.
4. Run the sudo sc_auth unpair -h <hash> command, where <hash> is the hash copied in the previous step.
   The selected device is unpaired.

To Unpair All Paired Devices (for a Single User) from MacOS Login

To remove all paired YubiKeys and smart cards for a single user:

1. Open Terminal.
2. Run the sudo sc_auth unpair -u <user> command.
   NOTE

   If working with the currently-logged on user, use $(whoami) for the username. You do not need elevated privileges (sudo).
   All paired devices for the user are unpaired.