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, ...

Two-factor authentication is a cornerstone of modern digital security, protecting banking, email and many other kinds of accounts worldwide. Now scientists at Sandia National Laboratories in ...

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 ...

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 ...

This security feature might not be so secure after all. Apple and Android users have been urged to stop receiving two-factor authentication codes via text after government officials revealed a massive ...