Two-factor Authentication requires you to use a personal device that isn't the device you're using when you log in to enhance security. Here are the best ones for iOS ...

SMS two-factor authentication is no longer available on Twitter, unless you pay for Twitter Blue. Fortunately, if your an iPhone user, there's a better option anyway. With more than a decade of ...

Beyond just making social media venues safer, here's how to shift away from SMS-based two-factor authentications and secure your online life properly, by using Google Authenticator on your iPhone. Two ...

Google has released the first update for Google Authenticator in years and it comes with the long-awaited feature of being able to move 2FA accounts between devices. When securing online accounts, ...

Scan the QR code from the first phone. You can do the same thing with the third phone. You can also take a photograph of the qr code and save that in a safe encrypted place or print it out as an ...