Only after youve provided that code do you gain access to your inbox.

On the whole, the process sounds simple. And for simply logging in to your webmail account, it is. But added complexities can crop up, since some apps dont yet support two-factor authenticationlike, say, Mail on the Mac or iOS. That makes configuring Googles two-factor authentication a bit more complicated.

Go to Google.com and log in. Click on your name or photo at the upper right corner of the main Google homepage, and choose Account. Then choose Security from the navigation options at left. Now you can see the option youre looking for: Click the Edit button along side Two-step Authentication.

At this point, Google will most likely ask you to login again. Thats for additional security. Enter your password, and click Sign In.