The acronym MFA stands for Multi-Factor Authentication, a security measure that requires users to provide two or more verification factors to access an account. This method enhances security by adding layers of protection beyond just a password, making it more difficult for unauthorized users to gain access. MFA can incorporate something the user knows (like a password), something the user has (like a smartphone), or something inherent to the user (like a fingerprint). Implementing MFA significantly reduces the risk of account breaches.