Emily Long is a freelance writer based in Salt Lake City. After graduating from Duke University, she spent several years reporting on the federal workforce for Government Executive, a publication of ...

Receiving an unprompted one-time passcode (OTP) sent as an email or text should be a cause for concern as it likely means your credentials have been stolen. One of the initial components of a ...

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) ...

Visa’s new Payment Passkey is bringing OTP-free online payments to India, replacing SMS codes with Face ID, fingerprints and device PINs. Learn how this RBI-aligned, FIDO-based system promises faster ...

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 ...