This case study was conducted to investigate efficacy levels of preservice Information and Communication Teachers' to identify, prevent and intervene to cyberbullying cases. Fifty participants were interviewed and 56 cyberbullying cases, which the participants experienced or witnessed, were collected to evaluate their cyberbullying readiness. Based on the content analysis and the expert ratings, preservice teachers found to have problems for identifying cyberbullying cases, suggesting appropriate prevention strategies for cyberbullying, judging intervention strategies, and suggesting appropriate intervention methods.