Google Authenticator is a free security app that can protect your accounts against password theft. It's easy to set up and can be used in a process called two-factor authentication (2FA) offered on popular services like Gmail, Facebook, Twitter, Inst...
![](https://is4-ssl.mzstatic.com/image/thumb/Purple128/v4/1e/86/f9/1e86f92d-0793-ea7a-9ec8-f14fa5311f13/source/60x60bb.jpg)