This study attempts to explore how schools’ handles and prevents cyber-bullying among pupils. The purpose in this study was to investigate how the school staffs work in secondary schools with grades sixth to ninth. How do the schools discover, prevent and stop cyber-bullying? Do the schools’ have any experiences of cyber-bullying? How do the schools work with anti-bullying concepts – have the new phenomenon cyber-bullying affected and changed the schools´ anti-bullying work in connection with the guidelines and in relation to the "new technology"? This study attempts to examine how this is handled within several secondary schools with three different municipalities. The theoretical starting-points have been an inductive theory which later has resulted in four other theoretical models, Meyrowitz two media-models which are describing social environments and several knowledge theories with a sociology perspective. In this study, the methods have been: conversational interviews with school staff –teachers and counselors. The analysis of the empirical material has been primarily content analysis with categorization of sentences which was mainly guided by empirics. The results shows that the schools does not have much experiences of cyber-bullying, they discovers, prevents and stops the phenomenon with same guidelines like the "regular" bullying. The major obstacle in the study showed a lack of resources, mainly among the teachers, such as time pressure and insufficient education on the subject. There also seems to be a lack of collaboration with agents outside the schools, primarily the social services, because the school does not feel that this type of cooperation works. The study provides several issues and several perspectives as a starting point for further research, such as experiences of cyber-bullying at school among pupils and parents.