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, ...

In a digital world where dangers online change daily, having only a robust password is not enough. That's where two-factor authentication (2FA) plays a role, an effective method that provides a second ...

One-time SMS codes are widely used as the second checkpoint in two-factor authentication (2FA) to sign into everything from banking apps to email accounts. As I've written before, though, SMS is one ...

We've probably all received confirmation codes sent via text message when trying to sign into an account. Those codes are supposed to serve as two-factor authentication to confirm our identity and ...

If you haven’t seen your data exposed in a major data breach within the last five years alone, you haven’t been paying attention. Billions of people worldwide have lost their data many times over. 26 ...