Two factor authentication is the next tool in our arsenal of being secure. After you have changed your passwords, now take the next step to secure it. While each service requires a different set up, the big names all use Google Authenticator. We think once you get this procedure in your workflow, you will be happy knowing you are really safe online.
Word of Warning: Please give yourself enough time to set this up. The first time is scary. Once you set it up, losing your second factor or your password will make your life extremely difficult. Remember you are trying to prevent impostors from accessing your information.
Google Authenticator | Play | iTunes | Windows Phone
Yubico | Yubikey
LastPass | Set Up 2FA
Google Accounts | Set Up
List of Sites with 2FA | Evan Hahn