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promoting location privacy…
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promoting location privacy… one lie at a time
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daniele quercia
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meets
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mobile phone location data
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recommend social events…
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…upon aggregate location data
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upon aggregate location data…
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upon aggregate location data…
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upon aggregate location data…
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upon aggregate location data…
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#fail $
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aggregate data:= data mashup
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!!! Public vs. Publicized
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Aggregate Data: A tale of disrupted social expectations
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share it all[by Facebook CEO]
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share it all[by Facebook CEO]
share nothing[by Wisdom of the Granmother’s Foundation]
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share it all[by Facebook CEO]
share nothing[by Wisdom of the Granmother’s Foundation]
share fake data[by Us]
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share fake data[by Us]
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Idea:
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true location + + “99” fake locations
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true location + + “99” fake locations
true location + + “99” fake locations
true location + + “99” fake locations
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#phones?
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(random) fake locations
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Tube passengers in London & car drivers in Zurich: accurately estimate #people
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Tube passengers in London & car drivers in Zurich: accurately estimate #people (18% error with 99% fake locations)
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(random) fake locations
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(random) fake locations
Evade paying taxes?Don’t answer! Flip a coin instead
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Yes!
[truth]
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true location + + “99” fake locations
true location + + “99” fake locations
true location + + “99” fake locations
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promoting location privacy… one lie at a time
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Future
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Future 1|social norms
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Future 2|reintroducing forgetting