This paper aims to address the users of social networking platforms in regards to protection mechanisms and the various challenges that these users face in attempting to protect their privacy in the online world. It is becoming increasingly recognized that self-presentation in the digital world requires the presentation of the user’s personal data, that is due to the fact that the online norm in regards to such phenomena has been shaped in a way which in order to be recognized and given attention to, one must share personal information which results in him acquiring a fan base which is the main goal associated with the participation in such online networks, thus exposing him to various risks. In addition, this paper also tackles another aspect which is related to the use of social networking platforms which is one of the most significant downsides of it, be it the excessive observing of the lives of others, which sometimes reaches the point of obsession, thus resulting in identity crisis issues such as identity theft and impersonation, as well as the extravagant and exaggerated interference of people into the lives of the user whom shares personal information online, which mostly ends in complications, troubles, issues, acts of stalking, or in some extreme cases even crimes. This paper also attempts to demonstrate the concept of processing personal data and determining who is responsible for addressing it on social networking sites.