Privacy is the condition by which one is free from the gaze of the public. Social networks bring people closer to the world. However, as the community grows and more people can get to know each other freely, private information can be found more easily by strangers. Additionally, people can use Internet advertising to convince other people to provide personal information. Then, they use the information to claim to be someone else and deceive others. For example, some people create lucky draws or games to steal private information such as identification number, telephone number, and bank account number; evildoers can use all the information to commit crimes. According to the Identity Fraud Study conducted by Javelin Strategy & Research (2017), $16 billion was stolen from 15.4 million US victims last year, compared to 2015 which amounted to $15.3 billion and approximately 13 millions of social media users. Therefore, the number of victims is continuously increasing due to the lack of privacy on the site