Years ago I worked for a company whose servers were in a highly secure facility. I had to pass through a “person trap” to get in, which required three independent things to get through: something you have, something you know, and something you are.

Imagine a booth about the size of a phone booth, with doors on both sides. To open the outer door you need a card key. Once inside the outer door closes. To open the inner door you need to put your hand on a hand scanner, then enter a PIN. Only then will the inner door unlock and let you inside. I was told that the booth also weighed you and would refuse to let you through if your weight was something like 10% different from your last pass through. That was to prevent other people from piggybacking through with you.

Lots of people think that’s all overkill until I explain that it’s all to ensure an authorized person, and nobody else, could get through. A bad actor could steal my card key & might guess my PIN, but getting around my hand scan & weight would be extremely difficult.

The closer we get to this sort of multi-layer authentication with websites the happier I am. I want my bank account, etc. protected just as well as that data center…