Two-factor authentication (TFA) is a security routine that requires both a password and an additional, temporary code to log into an account, typically sent via text, email, or an authenticator app.

Proton has a free authenticator app, which is available cross-platform with end-to-end encryption protection for data.

If you miss having a dedicated piece of hardware for your login codes, then we’ve got good news for you: [Cameron Kaiser] has managed to turn a Commodore SX-64 into a two-factor authenticator.

Two-factor authentication – also known as multifactor authentication – combines a piece of information that you know, such as a password, with something that you have, such as a phone, a code ...

Choose to receive the two-factor authentication codes by text message or automated phone call. When you tap Next, Apple sends a verification code to the phone number you provided.

Two-factor authentication is easy to use and does a much better job of keeping your data safe than using just a password. Here's how to set up 2FA.

I have long encouraged the use of two-factor authentication (2FA) or two-step verification (2SV) with online accounts whenever possible (for more about the difference, see “ Two-Factor Authentication, ...

A new report found that around a million two-factor authentication codes sent by text message appear to have been intercepted. A tech industry whistleblower revealed that the 2FA security codes ...

Two-factor authentication is the best protection against any of those, plus so much more. I'll explain what it is and why you should enable it whenever possible.

A million two-factor authentication codes sent via SMS passed through an obscure third-party company. Here's how it happened and why it's a problem. Written by Lance Whitney, Contributor ...

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 ...

Proton Authenticator is a new all-in-one 2FA app that wants to take the place of Google Authenticator, Authy, and Duo on your ...