Your Google Authenticator one-time codes are no longer trapped if you lose the device that stores them. An update to Authenticator for Android and iOS now stores backups of codes in your Google ...

Since inception, the biggest weakness of the Google Authenticator app and service was its inability to move from device to device. The security inherent within the app required that the one device be ...

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) ...

First, turn on two-factor authentication for the account. You'll get a QR code or setup key. Next, open the Google Authenticator app and tap the plus sign. Record the 2FA code/key. Whenever you're ...

Google Authenticator, the app that provides one-time codes to securely log in to your accounts, is probably the only app on my phone that I use absolutely every day. It's a must-have if you want to ...

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 ...

Using two-factor authentication (2FA) is one of the best internet practices today to secure your online accounts. It’s as easy as setting up your phone number to receive verification codes via SMS, ...

If you buy a new iPhone to replace your existing one and you use the Google Authenticator app to access online accounts protected by two-factor authentication (2FA), you should transfer those accounts ...

Google has updated its 2FA Authenticator app for iOS with a new account transfer feature that makes it much easier to transfer two-factor authentication codes to a new iPhone. 2FA adds an extra layer ...

A comprehensive developer guide to implementing secure authentication in modern applications. Covers OAuth 2.0, OIDC, ...

When you request a code to enable or reset Steam mobile authenticator, but the SMS never arrives even after trying multiple ...