What does multi-factor authentication (MFA) require?

Multi-factor authentication (MFA) enhances security by requiring two or more verification methods to confirm a user's identity. This typically includes a combination of something the user knows (like a password), something the user has (such as a mobile device or security token), and something the user is (such as biometric data like fingerprints or facial recognition).

By leveraging multiple factors, MFA significantly reduces the risk of unauthorized access. If one factor, like a password, is compromised, the additional layers of security remain intact, making it much more difficult for attackers to gain access to sensitive information or systems. This multifaceted approach is essential in today’s cybersecurity landscape, where single-factor authentication methods, like just a username and password, are increasingly vulnerable to attacks such as phishing or credential stuffing.

Ultimately, the principle behind MFA is that it strengthens security by requiring multiple forms of verification, thus minimizing the likelihood of unauthorized access.