Dave Lieber I was confused. Kept seeing mention of a security “key” offered on some of my favorite websites—Microsoft, Google, YouTube and Facebook, to name a few. I wasn’t sure if I should use it.

Cybercriminals always have an arsenal of ways to target and attack unsuspecting users, both at home and in the workplace. That puts the onus on companies like Google to find methods to thwart the ...

Most people assume that turning on two-factor authentication is enough to protect their accounts. It’s a big improvement. But it’s not enough. If someone can take control of your phone number, trick ...