Yeah, I know you...so what? You and your "security expert" are dead nuts wrong.
Go to
http://web.icq.com/whitepages/ and type in the number "10001" in the seach by ICQ# box.
The guy that comes up is the dude that invented ICQ
Keep looking...go up from there....they exist from 10000 and up as I said before.
Go do your homework.