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 ...

Proton, which is known for privacy-focused productivity tools, has launched a 2FA app called Proton Authenticator. This two-factor authentication adds a second layer of defence when logging into your ...

Cybersecurity matters more than ever. Passwords alone fail against hackers, phishing attacks, and identity theft. Two-factor authentication (2FA) protects digital accounts. Not all 2FA methods offer ...

In “Two-Factor Authentication, Two-Step Verification, and 1Password” (10 July 2023), I explained that for true two-factor authentication, you needed to acquire your time-based one-time password (TOTP) ...