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 ...

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 ...

If you aren’t already protecting your most personal accounts with two-factor or two-step authentication, you should be. An extra line of defense that’s tougher than the strongest password, 2FA is ...