Two-factor authentication (2FA), also known as multi-factor authentication, is an essential extra layer of security for your accounts. Usernames and passwords can be stolen and reused, but enabling 2FA adds a frequently rotated secret managed by your phone.

We recommend using a reliable multi-factor app like Authy, Duo, or Google Authenticator to manage your 2FA codes. This method is far more secure than alternatives such as text message (SMS) codes, which we advise against.