In September 2021, Social Security required all new mySocialSecurity accounts to be established using either Login.gov or ID.me from www.ssa.gov. 

Jack Myers with Social Security indicates that beginning last year, Social Security started prompting users who had the old usernames and passwords to transition their accounts to Login.gov or ID.me. In order to align with federal authentication standards, they are now requiring that transition before you can access your account. 

The best way to tell if you need to do something is to take note of your mySocialSecurity credentials. If you show an e-mail address as your “username,” you should be good. Or if you show a word or combo of characters other than an email address, you need to complete the transition to maintain access.