Online social networks redefine how people connect with each other. It's extremely easy to meet someone online. While most individuals use the internet for positive reasons like learning, making, and connecting with like-minded people while there are many sinister-intentioned people online. Cyber bullying very often escalates into personal abuse. Much of this abuse happens on social networks such as Twitter, Instagram and Snapchat. The potential presence of countless invisible cyber bullying witnesses and/or collaborators, which creates a position in which targets are not certain of who knows them and who to fear, can be more harmful than offline bullying. The cyberbullying can be prevent by preparing to interact in an online world.