Using two-factor authentication (2FA) greatly enhances security by adding an extra layer beyond just a password. 2FA typically requires users to provide something they know (your password) and something they have (like a mobile device for a verification code). This practice significantly reduces the risk of unauthorized access to accounts since even if passwords are compromised, a second verification step is needed. As cyber threats evolve, the importance of 2FA increases, protecting sensitive information and personal data from breaches and identity theft.