A good start is to talk to your friend and let them know that you are there for them. You should also discuss with your friend who their older Chatbudi could be if they do not already have one- it is important that somebody over 18 years old also knows about the cyberbullying.

By being a bystander, in other words, just watching someone being bullied and not doing anything about it, can be seen by the bully as approval of their actions and it may also encourage self-blaming among victims.