This article maps out the conceptual origins of cybercrime in social science fiction and other ‘faction’ genres to explore the relationship between rhetoric and reality in the production of knowledge about it. It goes on to illustrate how the reporting of dystopic narratives about life in networked worlds shapes public reactions to technological change. Reactions which heighten the culture of fear about cybercrime, which in turn, shapes public expectations of online risk, the formation of law and the subsequent interpretation of justice. Finally, the article identifies and responds to the various mythologies that are currently circulating about cybercrime before identifying the various tensions in the production of criminological knowledge about it that contribute to sustaining those mythologies.