Cybercrime has greatly increased in recent years. That is why it is important for criminologists and legal professionals to learn the basics about cybercrime. This text book offers insights into the various types and features of cybercrime, offender and victim characteristics, cybercriminal markets and groups, quantitative and qualitative methods for studying cybercrime, criminological theories that can be used to understand cybercrime, and possible countermeasures and interventions. In addition to criminological aspects, the book deals with a number of legal topics, including the criminalisation of cybercrime, investigative challenges, and the regulation of investigative powers that can be used by law enforcement agencies in the online domain. For this second edition, all chapters have been thoroughly updated, expanded, renewed and revised. This textbook is intended for students and professionals seeking to deepen their understanding of the criminological, technical, and legal aspects of cybercrime. It offers an excellent introduction and essential knowledge of cybercrime at your fingertips. 1 Introduction; 2 Cybercrime in a criminological perspective; 3 Types of cyber-dependent crime and their criminalisation; 4 Types of cyber-enabled crime and their criminalisation; 5 Cyber offenders; 6 Cybercriminal networks; 7 Cybercrime victimisation; 8 Criminological theories and cybercrime; 9 Cybercrime investigations; 10 Interventions for cyber offenders