The Two Factor Authentication (2FA) is a security process in which you must provide an alternate factor to verify yourself, prior to logging into your account.
This alternative authentication process involves the use of either Authy or Google Authenticator App to generate a token to authenticate your identity to access your account.
Refer to the following tutorial link in setting it up:
Kindly note that this 2FA setup is on a per-account basis, i.e. individual sub-user accounts belonging to the organization will need to have it enabled respectively.