What is Two-Factor Authentication? 2FA means Two-Factor Authentication, which adds extra security to your account. Once you turn on 2FA, every time you log in—along with entering your password—you’ll need to input a code from your phone or another device. This makes your account even more secure. Why Should You Use Two-Factor Authentication? 2FA protects your account from unauthorized access. Even if someone guesses your password, they won’t be able to log in without t...