MFA stands for Multi-Factor Authentication, which is a security mechanism that requires users to provide two or more forms of identification before accessing an account or system. This could include a password, security token, fingerprint scan, or facial recognition.

MFA is important because it adds an extra layer of security to your online accounts and helps prevent unauthorized access by hackers or cybercriminals. By requiring multiple forms of identification, MFA makes it much harder for someone to gain access to your account even if they have your password. This is especially important for sensitive accounts like email, banking, and social media, where a breach could have serious consequences.