“…), and even suicidal ideation and behaviour in the most extreme cases [4][5][6]. Three main actors are involved in this type of violence: the bullied, the bully, and the witnesses, whose role as bystanders can either reduce or increase the impact [7,8]. In this sense, negative behaviours in cyberbullying cases range from the most common forms, such as insults, harassment, intimidation and threats, isolation, and slander, to the distribution of images or videos without consent, identity theft, sextortion, grooming, viruses or malware, sharing personal data, or registering on undesired web services [9].…”