Enable two-factor authentication
In DigiCert ONE, in the Manager menu (top right), select Account.
In the Account Manager menu, select Accounts.
On the Accounts page, select the Name of the account.
On the Account details page, in the Sign-in settings for all-account-access users section, select the Two-factor authentication pencil (edit icon).
On the Update two-factor authentication page, select Enable two-factor authentication.
When using two-factor authentication, you cannot disable the standard sign-in for your account. Two-factor authentication requires a username and password along with a one-time password from an OTP app or device.
Select Update two-factor authentication.