Multi Factor Authentication (MFA) is a security process that requires users to provide two or more independent credentials to verify their identity before accessing an account or system. These credentials typically fall into three categories: something you know (like a password or PIN), something you have (such as a smartphone or security token), and something you are (biometric data like fingerprints or facial recognition). By requiring multiple forms of authentication, MFA significantly reduces the risk of unauthorized access, even if one factor becomes compromised. It is widely used in online banking, corporate networks, and other sensitive environments to enhance security.