[mikestew]

Oh, it's hardly a new idea. I don't remember the details, but I believe a lot of the work was based on a prior paper, the details of which I'd have to go dig for. No one at the company was an author on that paper, IIRC.

It worked too, my family couldn’t log into my Apple //c as me even with my password.

Well, that was one of the problems that still needed work. If our credit union uses this (and it did for a while), then the spouse can't log in even if they have credentials. And for certain classes of people, it was unreliable enough to be annoying. I was one of those people, and I rarely got logged in the first time. Such a relief to move to a new company and I could consistently log in the first time, every time. :-)