Q: I’ve been an Amazon customer for 20 years, but after changing my phone number, I’m locked out of my account because two-factor authentication (2FA) still uses my old number. I’ve called Amazon six ...

Authentication has been a part of digital life since MIT set up a password on their shared-access computer in 1961. Today, authentication covers virtually every interaction you can have on the ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Thorin Klosowski This is just one step in a series created to help anyone ...

What is two-factor authentication, and why do experts say it's the key to better online security? Two-factor authentication—often referred to as two-step authentication and 2FA—is a method for keeping ...

You lock your doors—why not your accounts? Two-Factor authentication is your last line of online defense. Using a mobile authenticator app isn't hard to set up. Yeah, it takes extra seconds to get ...

We all know that a password that's tough to crack provides protection against unauthorized intrusion into your digital accounts, but what if your user name and password are stolen? Recently, a hacker ...