Which type of authentication requires the user to provide two or more verification factors?

Multi-Factor Authentication (MFA) is the correct answer as it involves using two or more distinct verification factors to authenticate a user's identity. This approach enhances security by requiring different types of evidence to verify a user, which might include something you know (like a password), something you have (like a mobile device or a security token), or something you are (biometric data such as a fingerprint).

Using multiple factors makes it significantly harder for unauthorized individuals to gain access, as they would need to obtain more than just a password to succeed. Each layer of security adds to the overall defense against potential account breaches.

In contrast, Single-Factor Authentication relies on one method of verification, making it less secure. Two-Factor Authentication typically refers specifically to using exactly two different verification methods, while MFA can involve two or more factors, so it is broader in scope. Biometric Authentication, meanwhile, specifically focuses on the "what you are" factor and does not encompass the variety of other factors that MFA includes.