Multi-Factor Authentication (MFA)

Multi-Factor Authentication (MFA) is a security mechanism that requires users to provide two or more verification factors to gain access to a resource such as an application, online account, or VPN. These factors typically fall into three categories:

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1. Something you know (like a password or PIN)
2. Something you have (like a smartphone or security token)
3. Something you are (like a fingerprint or facial recognition)

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By requiring multiple forms of identification, MFA significantly enhances security compared to single-factor authentication methods (like passwords alone). Even if one factor is compromised, unauthorized access is still prevented without the additional factors. MFA has become a crucial component of modern cybersecurity strategies, particularly as remote work and cloud services have expanded the traditional network perimeter.