About This Site

Turn It On: The Ultimate Guide to Two-Factor Authentication (2FA) is a free resource with the goal of bringing awareness to the benefits of 2FA. This site provides an explanation of 2FA and how it protects online accounts from compromise as well as a directory of step-by-step tutorials on enabling the security feature on 100s of top websites.

This site is presented by TeleSign. TeleSign is the leader in Mobile Identity Solutions, helping customers secure more than 3.5 billion end user accounts worldwide and prevent registration fraud.


Additional Resources on 2FA Include: