Theories of deindividuation share common grounds, one of which is anonymity. For decades, it has been hypothesized that anonymity affects human behavior. With the rise of the popularity and development of personal computing, claims are made that individuals perceive themselves to be more anonymous in computer mediated environments. This perception may be a major factor contributing to the engagement of individuals in online antisocial behaviors and in cyber criminal activities like high-tech white collar crimes and Information Technology (IT) insider threat crimes. This talk presents an overview of the literature on anonymity and the deindividuation theory. A philosophical bind is then made between the various effects of anonymity, high-tech white collar crimes and IT insider threat crimes. These philosophical accounts may be used as a cornerstone for scientific research in the new cyber crime phenomenon.