Although it may be difficult, experts say one of the first things to do if you are being bullied online or via text messaging is to ask for help.
NetSafe has created a page on its website dedicated to cyberbullying and providing advice for young people, parents and teachers.
If someone has threatened to hurt you physically, contact police, it says.
Save any emails, text messages, screenshots or images from bullies that can be passed on to school authorities or the police.
For parents whose children may be bullied - or are the bullies - sit them down and talk things through.