Sign up for Facebook

Facebook is the world's largest social network. Before you sign up, make sure you know what information they store about you and how it can be used.

Facebook will attempt to

Track your location Source Source Source

Track all your phone calls and texts (who you talk to and when) Source

Track much of what you do on the internet Source

Log most of what you do on Facebook Source

With this data, Facebook may be able to

You should know that

Facebook makes money by giving companies, organizations and foreign powers the ability to show you ads based on what Facebook knows about you. These ads may try to change your opinion or make you buy something. Facebook does not sell your data. Instead they sell “access” to you. Advertisers pay Facebook and in exchange, Facebook show the ads to the people who are most likely to be interested in them. Since Facebook knows so much about their users, they are good at showing the right ads to the right people. Source This “targeted advertising” is good for advertisers, since it lets them show ads to a specific “audience” — people who are likely to be interested. “Choose your audience — Connect with the people who will love your business” It's considered a problem for democracies since people don't see the same ads and therefore won't be able to have a discussion about how they are being targeted by states, political parties, organizations or companies. “Your Filter Bubble is Destroying Democracy” It's considered a problem for democracies since foreign powers may use targeted ads to create division among different groups. These advertising tools have been used to influence the outcomes of elections. “Questions for Facebook About Russia’s Use of Its Network”

Facebook uses design tricks to make you give up more personal information than you may have initially intended to. Source

Facebook will run experiments on you to change your feelings or make you use Facebook more. Source

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