A hardware security key is a physical gadget—like a USB stick—that gives you an extra layer of security through multifactor authentication (MFA). When you sign in to certain services, you’ll plug it ...

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.

Google has been selling its own line of Titan Security Keys for several years now, and new USB-C and USB-A models with NFC today let you store passkeys. Previously, Titan Security Keys served as a ...