Talk about it!
A 2012 study on the use of the Internet in France found that searching for new friends is one of the most popular online activities among children. 43% admit to have already added strangers to their list of friends. And 12% say they have already sent one of their photos or videos to someone they had never met.
It is therefore necessary to make your child aware of the risk of chatting with strangers on the Internet or publishing personal information.
For example, you can start off by asking them questions, in the course of a casual conversation, about what they like doing on the Internet. The important thing is to be as aware as possible of what they are up to, so that you can react quickly if necessary.
It is also worth talking to them about the consequences of certain types of behaviour that have become rife: publication of photos taken in class, derogatory comments, etc. It is important for them to know that they can talk to an adult about it if they witness online bullying or become a victim themselves. One good source of advice is the Belgian foundation Child Focus who can help you instigate this talk and ask the right questions.