I switched jobs last month and decided to audit all my personal stuff while the old place was auditing all the work accounts I left behind. We&#x27;d been using google&#x2F;gmail 2 factor authentication.<p>There&#x27;s a few layers to it, most everyone has seen.  Ok, 1st factor is your password, so you log in with your password.<p>2nd factor can vary - a list of codes you print and keep in your wallet, or they can send a txt message to your phone.  Or you can get an authenticator app, which you configure with some magical seed value, and then you have what&#x27;s effectively a software RSA token device on your phone.<p>Even easier? I just found out about these FIDO usb hardware keys.  9 bucks, wait for it in the mail... go to your gmail account settings, click the link, put the hardware key in, press the button... and that&#x27;s it, from then on you can plug that key into a web browser (chrome, actually) and it will pass the second factor.  Anyways, it&#x27;s been out for a while, but I just found out about it, and it&#x27;s so easy to do I wanted to jot a note down here.