The gap between the "Defensive" and "Offensive" data security fields...if this separation between the "Defensive" and "Offensive" fields is clear enough, Network administrators and (defensive) security experts will start to realize that they are aware of only one half of the equation, and that there's a completely alien force they need to deal with - and that in order to defend, they need to understand the attack(er). Data mining for business intelligence, findings are auctioned. Black Hats.