In this report, the findings of qualitative research from the EU Kids Online III study are presented. The research included children who used the internet weekly. The children were from nine European countries: Belgium, the Czech Republic, Greece, Italy, Malta, Portugal, Romania, Spain, and the United Kingdom. This research focused on the following: what children perceive as being potentially negative or problematic while using the internet, what risks children are aware of when using the internet, what consequences online negative experiences might have, how children react to negative experiences, what children do to avoid or prevent these problematic experiences, and why children perceive certain situations as negative.