10 Tips for Teens to Prevent Cyberbullying

#8. Never open messages from people you don't know: Delete all messages without reading them from people you don't know, as they could contain viruses and infect your computer. The same goes for messages from known bullies. It is best to not engage and ignore them. 

https://www.momsteam.com/health-safety/10-tips-teens-prevent-cyberbullying