Social networking sites are powerful virtual technologies to bring people together and exchange information, enabling their users to post messages, videos and photos, make comments, "mark" people in publications and share with others, among other features. Networks like Facebook are growing in popularity in recent years, reaching 901 million monthly active users. However, as this network helps to make the world more open and connected, participants inevitably end up losing control over the extent that their personal information can reach among people who are or not part of their social connection. In this context, we conducted a survey to find out how people have considered the issue of privacy on these networks, and if they are aware or care about the risks that the exposure of information online can bring. This research was focused on Facebook, with the participation of 255 volunteers, and its results and considerations are discussed in this article.
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