If Multifactor Authentication is not enabled, this may be enabled by clicking the Multi-Factor Authentication link. You may be prompted to re-enter your password to continue.
[Optional] Click to enable SMS validation
If you do not have a smartphone, click I don't have a smartphone! to enable SMS validation. A valid mobile telephone number is required for SMS validation.
Any valid Authenticator app may be used for Multi-Factor authentication. If you do not have an authenticator app installed, the Google Authenticator may be downloaded from the appropriate store using the links provided.