I have long encouraged the use of two-factor authentication (2FA) or two-step verification (2SV) with online accounts whenever possible (for more about the difference, see “Two-Factor Authentication, ...

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.

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 ...