Information and communication technologies (ICTs); while providing a range of benefits to individuals, organisations and governments; also provide new opportunities for criminal activities to emerge. This chapter provides an overview of criminal victimization online. The focus is on the impact of cybercrimes on victims and the associated legal, technical, educational and professional responses to cybervictimization. The focus on cyber-victimization is situated within the broader context of responses to victims of crime in off-line settings. The form of cyber-crimes will continue to change as new ICTs and applications emerge. Continued research into the prevalence, types and impacts of cyber-victimization is required in order to inform victim service provision and effectively address the needs of current and future cyber-victims.