Yubikey

A Yubikey is a small piece of hardware that helps keep your online accounts and information secure. It looks like a USB stick, and you can plug it into your computer or other device. What it does is that it shows a unique codes that only you know when you press a button on the device. That code is then checked against a database to make sure that only you have access to your online accounts, information, and websites. When you enter your Yubikey code, it helps keep your accounts and information secure from hackers and other people trying to access them.