Th e Hacker’s Profi ling Project (HPP*) began between 2003 and 2004, due to a combination of events. First of all, one of the authors of this book, Raoul Chiesa, started getting involved in criminal profi ling. Italian authors such as Picozzi, Zappala, and Lucarelli fascinated him, and when taken in conjunction with John Douglas’ analysis methods, mentioned at the beginning of this book, he started seeing defi nite links and analogies with the world of hacking.