What is Multi-Factor Authentication (MFA)?

Multi-Factor Authentication (MFA) is a security system that requires more than one method of authentication from independent categories of credentials to verify the user's identity for a login or other transaction. It enhances security by making it more difficult for unauthorized individuals to access a target because knowing the victim's password is not enough to pass the authentication check. Common factors include something you know (password), something you have (phone), and something you are (biometrics).