Cyberbullying is online threats and mean, aggressive, or rude texts, tweets, posts, or messages all count. So does posting personal information, pictures, or videos designed to hurt or embarrass someone else.
Cyberbullying can include:
Sending mean texts or IMs to someone.
Pranking someone's cell phone.
Hacking into someone's gaming or social networking profile.
Being rude or mean to someone in an online game.
Spreading secrets or rumours about people online.
Pretending to be someone else to spread hurtful messages online.