This study aims to determine whether or not there is an association between creating fake user accounts and engaging in behaviors deemed to constitute cyberbullying. A quantitative research methodology was used with a clear descriptive and interpretative intent. The sample comprised 1989 adolescents aged between 10 and 17 years from five regions in Southern Europe, who completed an online questionnaire. The results reveal that adolescents aged 16 years were the ones who engaged most in cyberbullying actions. Those who created false profiles tended to engage in more behaviors linked to cyberbullying. Adolescent social media users were mainly older boys who engaged more in cyberbullying behaviors. Relatively few adolescents claim to engage regularly in behaviors linked to cyberbullying. The study concludes that there is an urgent need to provide adolescents with training in the responsible use of digital technologies at an earlier age, before they begin using them assiduously.

This paper aims to analyze the risk actions carried out by children and teens in relation to what they post and share on social networking sites and instant messaging services. The research was conducted in accordance with a descriptive and exploratory methodology, using a 39-item questionnaire with a Likert-type response scale. The study analyzes a wide range of actions carried out on mobile devices by 856 children and teens aged between 9 and 17 years. The results reveal statistical differences in age and gender, with girls engaging in more risk actions that do not involve an express desire to harm other people. Snapchat is the most commonly-used app for inappropriate actions linked to the posting of content online. In conclusion, educational interventions must be improved in order to increase children's safety and level of digital competence.