The primary purpose of multi-factor authentication (MFA) is to add additional layers of security to user authentication by requiring more than one authentication factor. These factors typically include something you know, something you have, and something you are.

MFA significantly reduces the risk of unauthorized access, even if one factor—such as a password—is compromised. Attackers would still need access to the additional factors to authenticate successfully.

While MFA can help reduce the likelihood of breaches, it does not directly prevent malware or ensure data integrity. Its focus is on strengthening identity verification.

NIST, CIS, and other security frameworks strongly recommend MFA, particularly for remote access, privileged accounts, and cloud environments, due to its proven effectiveness in preventing account compromise.