The chapter is focused on the problem of electronic aggression (conducted via the Internet or mobile phones) in the context of young people as potential victims and perpetrators of such aggression. The text addresses two main issues: the potential novelty of electronic aggression and its potential distinctive features and the diversity of electronic aggression acts (with a proposal of typology). The first aspect is analyzed through the new model – ABACUS that could be used to compare electronic and traditional aggression. The chapter presents also a typology of electronic aggression based on the victim’s identity and his/her relationship with a young person who is a perpetrator. The presented theories and discussions are illustrated with new data from two Polish projects on students and teachers experiences with electronic aggression.