What main benefit does multi-factor authentication offer?

The primary benefit of multi-factor authentication (MFA) is that it enhances security by requiring multiple forms of verification from users before granting access to sensitive information or systems. This approach significantly reduces the risk of unauthorized access because even if one factor, such as a password, is compromised, an attacker would still need to provide additional verification methods that they likely do not possess. These additional factors can include something the user knows (like a password), something the user has (like a smartphone app for generating a code), or something the user is (like a biometric characteristic such as a fingerprint).

While MFA may complicate the login process somewhat and may not necessarily speed it up, its primary function is to provide greater security assurance, especially in environments where sensitive data is handled. It also doesn't eliminate the need for passwords, as passwords can still be a part of the verification process. Overall, the multifaceted approach of MFA creates layers of protection that significantly strengthen an organization's security posture.