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What Facebook knows about you

A couple of months ago the Austrian law student Max Schrems asked facebook to send him all their data stored about him. All Europeans have a right to do this, because facebook is based in Dublin, Ireland. It took a while and then facebook sent Max a CD with 1222 PDF files. A visualization of the data by taz.de

Schrems was surprised how much the social network knows about him and his friends. And how much it remembers. In theory, people at facebook could read all of his facebook messages. And find out what he has written on criminal law.

The content of these messages might interest advertisers who place customised adverts. Customised advertising probably earnt facebook around two billion dollars in 2011. What Schrems writes to his friends might also one day interest the police – or hackers. facebook keeps the messages even after Max has deleted them, deep down in its servers.

And facebook knows exactly when Schrems writes messages. And it remembers when Schrems logs on. So even weeks later it can be established precisely at what time Max used facebook.

facebook also sent a CD with data to Schrems’ friend Lisa. It knows much more about her because Lisa has taken photos with her i-phone. With GPS coordinates, the data can be used to work out exactly where she was. With biometric facial recognition, which Mark has introduced to facebook, it is possible to know about millions of people exactly who was where when.

Read more at taz.de

  • mark Z

    We know who you are and we see what you do.

Duration: 01:58
Language: EN
Resolution max: 720p
Video Source: YouTube
Provided by: taz. die tageszeitung
Published on: 2011-11-07
Rating: 1 Star2 Stars3 Stars4 Stars5 Stars
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Ø Rating: 4.33
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