What is Multi-Factor (Two-Factor) Authentication (MFA / 2FA), and why is it required after sign-up?

What is Multifactor / Two-Factor Authentication?

Multifactor Authentication (MFA), also known as Two-Factor Authentication (2FA), is a security mechanism that requires more than one form of verification when logging in.

In addition to a username and password, a second factor is required. This is typically a time-based one-time code generated by an authenticator app on a mobile device.

What is MFA used for?

MFA is used to effectively secure access to accounts and sensitive resources.
Even if login credentials are compromised, access is not possible without the second factor.

This helps protect against unauthorized access, account takeovers, and misuse of stolen credentials.

Why is MFA necessary?

Passwords alone are no longer sufficient to protect accounts. They can be reused, exposed, or automatically filled by password managers.

With MFA enabled, access requires proof of possession of an additional device. This ensures that only users who have both their credentials and the authenticator app can log in.

As a result, your domains and digital assets remain protected.

Recommended authenticator apps

We recommend using an authenticator app on a mobile device that you typically carry with you.

Well-established and commonly used options include:

• Google Authenticator

• FreeOTP

• Microsoft Authenticator

Other authenticator apps can also be used. However, the ones listed above are among the most widely supported and easiest to use.

Why is MFA mandatory with us?

MFA adds an extra step during login, but significantly increases security.

Because protecting your domains and assets is important to us, multifactor authentication is mandatory during signup. This ensures a consistently high level of security for all accounts.