Security wasn't an industry before 2002? Huh? Security made millionaires out of half of #!r00t and (I assume) #w00w00 before 2000, mostly due to ISS. It professionalized in the mid-1990s.
Hm, security made millionaires you say, I'm not sure about that. WhatsUp is not the kind of application that I would expect from a former w00w00/TESO/MoD/ADM/Gobless/LSD-PL/whatever. Most of them are into security I assume and I don't recall anyone becoming millionaire, in the sense that no story made headlines to my knowledge.
But you probably know better, since you're on the field.
People have been selling security companies for 8-9 figures for the last 13 years or so, more or less continuously. And when we're talking about #w00w00 / #hack / #!r00t, you also have to contend with ISSX, which was an extremely successful IPO. So, yeah: reevaluate that thought.
