What's a verification code, and why are they so important? Six-digit verification codes are a form of two-factor authentication, a process that helps keep your important online accounts secure.

Download the official "iCloud Passwords" extension for Chrome. Windows users also need the iCloud for Windows app. You must enter a six-digit verification code whenever you launch Chrome, after ...

Now that two-factor authentication is enabled on your Google account, every time you attempt to sign in, you’ll be required to enter the six-digit verification code after you enter your account ...

Then type your password followed by the six-digit verification code directly into the password field without any spaces between the password and the verification code.

A six-digit verification code will appear on your smart device. Enter the verification code into the field under step 3 on the Nintendo Account screen, then "Submit." A list of backup codes will ...