No, you cannot opt out of WashU 2FA. You must enroll in WashU 2FA to access WashU 2FA enabled systems and services.
Yes. WashU 2FA Call Me and Passcodes are still options for individuals with an approved DUO Exception Request from the Office of Information Security.
All University websites that ask you for a username and password should utilize WashU 2FA. If you’ve logged in somewhere that didn’t employ 2FA, please report the website to the WashU IT Service Desk for review at firstname.lastname@example.org.