You may have your Mac computer Touch ID be registered as a device for Duo two-step login.
You must have the following:
Before you begin:
Add Touch ID
Go to uit.oregonstate.edu/duo. Scroll down and click the button labeled "Manage your Duo devices".
Login with your ONID information and pass through the Duo prompts.
Click "Add a device".
Select “Touch ID”.
Follow the instructions at https://guide.duo.com/universal-prompt#add-touch-id
For assistance, contact the Service Desk.