What distinguishes two-factor authentication (2FA) from a standard password?

Two-factor authentication (2FA) significantly enhances security compared to a standard password by requiring two distinct forms of verification. This process involves something the user knows (such as a password) combined with something the user has (like a mobile device or smart card) or something the user is (biometric data such as fingerprints or facial recognition).

The dual verification mechanisms make it much more difficult for unauthorized individuals to gain access to an account, as simply knowing the password is not sufficient for entry. This layered security approach mitigates risks associated with password theft or compromise, underscoring the importance of having more than one method of confirming identity.

Understanding this distinction highlights the critical nature of 2FA in providing an additional barrier of security beyond what traditional password protection offers, which relies solely on one piece of knowledge.