Two-factor authentication is a security process in which the CMS user provides two means of identification from separate categories of credentials. When this setting is enabled, a user must provide their login credentials (Username and Password) along with a randomly generated PIN. When accessing the login page, a user can generate a random PIN which will be sent to their email address (Username).
To enable this setting, check the box labeled "Two Factor PIN Authentication Required" and then select the Save button. To disregard any changes made on the Edit Settings page, click the Cancel button.