What is the significance of two-factor authentication?

Two-factor authentication (2FA) significantly enhances security by requiring users to provide two different forms of identification before accessing their accounts. This typically involves something the user knows (like a password) and something the user has (such as a mobile device that receives a verification code). By adding this extra layer of security, it mitigates risks associated with password-only authentication, such as password theft or compromise. Even if an attacker manages to acquire a user's password, they would still require the second factor to gain access to the account, making unauthorized access considerably more difficult. This dual-layer approach forms a crucial part of modern security practices, protecting sensitive information and user accounts effectively.