What method enhances the security of user access by requiring multiple forms of identification?
Username and password login
Multi-factor authentication (MFA)
Two-step verification using SMS only
Single sign-on (SSO)
The method that enhances security by requiring multiple forms of verification is multi-factor authentication (MFA). MFA requires users to provide two or more verification factors, which could include something they know (like a password), something they have (like a mobile device or a security token), or something they are (like biometric data). This layered approach greatly improves security, making it harder for unauthorized users to gain access.
Other options either represent single methods of authentication or do not involve multiple verification elements, which reduces their effectiveness compared to MFA.
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