Cyber bullying is where people pick on people on the Internet or social media.
A lot of the things the bully's say to the person they are bullying are to kill them self or that they are ugly. Some people cant take that so well and they kill them self
The person being bullied can tell there parents about it and they could help them get through it.
Or they can tell there friends and they could help before it gets too late.
One of the main reasons that people are cyber bully's is because they feel unsafe at home or other places so they pick on people on the Internet to make them feel better or to make them more "popular"
If you become aware of someone that is being cyber bullied then you should try to talk to them and comfort them, or you could tell there parents if they are to scared or ashamed too.