As seen on slashdot:

An Israeli student did her doctoral dissertation by profiling Israeli hackers (using this term as her interviewees seem to be a cut above the average skrypt kiddie). Not sure how statistically relevant this study is, but the article is a pretty good read.

Interesting to counterpoint this with the extortion crackers, who seem an entirely different demographic.

Article: http://www.haaretz.com/hasen/spages/363504.html