This research study attempts to identify and understand the impact of social media, specifically Facebook on university female students living in Pakistan. In-depth interviews have been conducted from 20 female Facebook user university students to knows the impact. The findings show that Cyber bullying and sexual harassment prevailing online and involves in different activities like; sexting, stalking, blackmailing, abusive & immoral conversation and forceful friendships with fake identities that has a serious influence on female students. Pakistani women are often easy victims of such crimes and there suffering goes unreported. They tend to hide it from the society in order to guard their reputation. The study recommends strict punishments for such criminals in order to ensure security for women.