Fights, humiliations, and bullying that are filmed and spread across various social media platforms: a growing group of underage youths is involved in this type of violence video. Researchers call it hybrid violence: the violence is already severe for the victims, but because it is spread online, the damage increases further. A survey among schools shows that this new phenomenon also causes problems at school. What can be done against this form of hybrid violence? And, what is the responsibility of the social media platforms?