You probably know that enabling multi-factor authentication (MFA) is one of the best ways to protect your online accounts. A hardware security key, such as the $55 Yubico YubiKey 5C NFC, can serve as ...

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. How does it work? Is it a real ...