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 ...

A new, simpler version of two-factor authentication could broaden its protection to many smart devices that currently cannot support it. Subscribe to our newsletter for the latest sci-tech news ...