In an effort to keep accounts more secure, developers with the Account Holder role in a developer program will need to enable two-factor authentication to sign in to their Apple Developer account and Certificates, Identifiers & Profiles starting February 27, 2019.
This extra layer of security for your Apple ID helps ensure that you’re the only person who can access your account.
Read AlsoApple announces Health Records feature coming to veterans
Learn more about this requirement…
News – Apple Developer