Two-factor authentication is critical to securing your online accounts, and Duo Mobile offers the best combination of security, accessibility, and ease of use.

In addition to storing your passwords and login credentials, the Passwords app can also generate verification codes for additional sign-in security.

If you wanted to lock down your Twitter account and make it harder for hackers to break in, you’d either have to turn on SMS-based two-factor authentication (2FA) or generate a one-time login code.

Software 2FA is an excellent middle ground that uses an application on your mobile phone to generate random 2FA codes once every 30 seconds. When you log in, you check the app and enter the current ...

Mac's two-factor code authentication is now even better, thanks to the dedicated Codes section in the new Passwords app in macOS Sequoia.

DuoSec’s app can both generate security tokens using Google’s widely adopted protocol, as well as pass direct authentication messages with its own system.

So even if someone gets your password, they can’t break into your account without having your sign-in code too. For years, security experts have recommended using authentication apps to generate ...

If you connect your Microsoft Account to a Microsoft app with two-factor authentication turned on, you'll be able to use an app like Microsoft Authenticator to generate a code to allow you to log ...

You can use the new iOS 18 Passwords app to add and use two-factor codes for any website or app. There's a convenient autofill option, and even if an app doesn't support autofill, you can use the ...

If you lose your phone or switch devices, you might get locked out of your online accounts. Here’s how to prevent that from happening.

What is two-factor authentication? Why do I need to set it up? What are the best apps? Bradley Chambers answers all your questions in this article.