Club Penguin’s Simon Pollard gives us his top five online safety tips
Cyberbullying is when children or teenagers use the web, or mobile phones or any other technology to threaten, tease or embarrass another young person.
Nasty messages are just one form of cyberbullying.
Often bullies set up a website or group on a social media website like Facebook and then ask other people to join in and comment about a person or images of them.
But it can also include things like emailing someone a virus on purpose, posting personal information where it shouldn’t be or calling them names when playing a game together online