The freedom of expression enabled through information and communication technologies (ICT) has been misused to create, (re)produce, and distribute cyberhate. Otherwise known as online hate speech, it refers to all forms of ICT-mediated expression that incites, justifies, or propagates hatred or violence against specific individuals or groups based on their gender, race, ethnicity, religion, sexual orientation, or other collective characteristics. This chapter aims to contribute to a comprehensive analysis of cyberhate among adolescents and adults. It is structured into three main sections. The first operationalizes the key conceptual characteristics, disentangles the similarities and differences between cyberhate and other forms of violence, and presents the known prevalence of victimization and perpetration. The second identifies the main sociodemographic correlates and discriminates the risk and protective factors with theoretical frameworks. The chapter concludes with recommendations for prevention and intervention strategies that demand a multi-stakeholder approach.