At the expense of over using the word uber, I couldn't think of any other word that started with U except my last name.
In 1995 when I walked first into the SF 2600 meeting I had previously started a business called Informasearch, whose stchick was to search a database of chemical information which resided in Columbus Ohio using a CP/M computer as a terminal and using 1200 baud modems and the X-25 networks that were available then
X-25 networks were what were being used in Iraq at the time of the start of US invasion of same
Firewall? What's a firewall? So I bought a copy of Cheswick and Bellovin. I was then two years short of my winning an award in the hack contest at MacHack.
So I was a Mac programmer, I taught myself 3D Perspective computer graphics and coded a primitive game. About the same time I had used the Mac as a platform to develop this shareware calculator as I called it which served as a front end for an annealer, Bremmermann's optimizer it was named.
I wrote and gave a talk before the American Chemical Society of which I am an over 25 year member.
Moving on...
So I looked in the index of the "Have to be this tall to storm the castle" book and found MAC, thought Macintosh, found Media Access Control (MAC address)
I went to DefCon in 1995, there were about 300 people there. I talked to Jeff Moss. I bet him $5 that they would double in attendance and crack 600 in 1996, they did and I got Jeff to autograph it as The Dark Tangent