MacBook Touch ID is now available for use with Duo
Duo Touch ID is now available – MacBook Pro and MacBook Air users can now set up Touch ID to work with Duo. Adding Touch ID as an additional authentication device enables Duo approval using the Touch ID sensor. (Chrome browser is required.)
If you have not set up your Apple Touch ID, follow the instructions that Apple Support provides. https://support.apple.com/en-us/HT207054. With Touch ID you use your fingerprint instead of typing a password to unlock your Mac, make purchases from the App Store and iTunes Store and authenticate on websites and devices.
For step-by-step instructions on adding Touch ID to your Duo authentication devices, see the Duo guide https://guide.duo.com/touch-id.