Enhanced User Profile and Allocation Membership Security
An XSEDE User Profile contains important information that the user maintains about themselves, including e-mail address, postal address, and phone number(s). If you are enrolled in XSEDE DUO for two-factor authentication "TFA", you will notice that in order to modify your XSEDE User Profile you will now have to authenticate with XSEDE DUO. Similarly, PIs and allocation managers enrolled in TFA will now have to authenticate with XSEDE DUO to add or remove users from their project.
