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 ...

Financial institutions have historically relied on one-time passcodes as a primary authentication control for their ...

Two-factor authentication (2FA) is a great way to boost the security of your accounts. But even with that added layer of security, malicious actors are finding ways to break in. So-called adversary-in ...

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) ...

A new wave of device code phishing shows how threat actors are scaling account compromise using AI and end‑to‑end automation.