Facebook is a mobile app which had made so many changes in society in Facebook there are so many problems in Facebook in which if we chat with somebody we don't know who is chating with us by that so many people had cheated by using fake email and photos and by that so many people had lost their money and some body had lost their life also and today people are spending so much time on facebook and they are loosing contact with the relationship between the society and Facebook ceo had faced some contact misuse case also these are the problem I have seen in Facebook