Passcode

  1. Request a new passcode
    On the Duo Mobile App, you can click the key icon to the right of MIT to display a current passcode
    Duo Mobile app with the key icon next to MIT highlighted. Duo Mobile app displaying the passcode.
    For a mobile phone that can accept SMS messages, you can request SMS passcodes by clicking the link underneath the passcode prompt in the Touchstone authentication window
    Duo Authentication page with arrow pointing at 'Send SMS passcodes' link.
  2. Enter the passcode obtained from the Duo Mobile App or from the SMS message
    If using SMS, the Touchstone login page will tell you which code to use: Next SMS passcode starts with ...
    Mobile texting client with received passcodes.
  3. Click Login
  4. Result:Your web browser's Touchstone session should automatically complete authentication
    If you type the incorrect passcode, you will be prompted to enter the correct one or you can choose another device or method.

    http://kb.mit.edu/confluence/pages/viewpage.action?pageId=151109106#HowdoIlogintoMITservicesthatleverageDuotwo-factorauthentication%3F-Passcode