A password alone will not protect sensitive information from hackers--two-factor authentication is also necessary. Here's what security pros and users need to know about two-factor authentication.

Ready or not, two-factor authentication is something you’ll need to start thinking more about. This approach to online security, also known as two-step authentication, multi-factor authentication, or ...

How to Turn on Two-Factor Authentication For Your Email Google and Yahoo offer two-factor authentication for their web-based email services. If you use Yahoo Mail or Gmail, here is how to turn on this ...