This isn’t new information (other references from 2008 here and here), but I thought I’d point it out again since people continue to claim that “hacker doesn’t mean criminal — use cracker instead”. There is no justification for that claim. Yes, “computer hacker” has always had the non-pejorative meaning “enthusiastic nerd”, but it’s also always been used to connote something nefarious; it’s never been true that the prejorative sense is “wrong”.
More:
http://erratasec.blogspot.nl/2012/08/no-hacker-really-does-mean-hacker.html