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.

Two-factor authentication is a security measure that makes you pass two security tests before gaining access to your account or device. As hackers and hacking systems become more advanced, experts say ...

Two-factor authentication is the best protection against any of those, plus so much more. I'll explain what it is and why you should enable it whenever possible. Sometimes called 2-factor ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

What is two-factor authentication, and why do experts say it's the key to better online security? Two-factor authentication—often referred to as two-step authentication and 2FA—is a method for keeping ...