Introduction: Bullying is an aggressive, intentional act carried out by a group or an individual repeatedly and over time against a victim who cannot easily defend himself or herself. However, with the advent of electronic communication via the internet and mobile phones has led to appearence of a new form of violence, i.e. cyberbullying. Cyberbullying is define as “willful and repeated harm inflicted through computer, cell phones and other electronic device”. The aim of this paper is to point to the growing problem of cyberbullying. Methods: Review the research and theoretical literature. Results: Bullying through the Internet tends to occur at a later age, around 14 years, when children spend more time on their mobile phones and social networking sites. Estimates indicate that between 15% and 35% of young people have been victims of cyberbullying and between 10% and 20% of individuals admit to having cyberbullied others. Perpetrators of cyberbullying have a degree of anonymity not possible in traditional bullying, and the potential exposure and embarrassment of the victim is on a larger scale. It is possible to victimize a peer within their own home or elsewhere at any time of day or night, and should they remove themselves from the site, the messages often accumulate. Victims of bullying often have mental health problems, including depressive symptomatology, self-harm and suicidal behaviors. Conclusions: This presents new challenges for individuals, families, schools, professionals, researchers, and policy makers.