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.

Protecting your online accounts is crucial, and a hardware security key is one of your effective defenses. These are the top security keys we've tested for keeping your information private and secure.

This simple USB trick adds physical security to your PC without buying extra hardware.

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Max Eddy Max Eddy is a writer who has covered privacy and security — including ...