A common security measure employed to protect online accounts is two-factor authentication (2FA). This approach enhances security by requiring users to provide two different forms of verification before granting access. Typically, this consists of something the user knows (like a password) and something the user has (such as a mobile device that receives a text or an authentication app). By adding this extra layer of security, 2FA considerably reduces the risk of unauthorized access, even if a password is compromised, thereby protecting sensitive data and personal information more effectively.