Promoting location privacy… one lie at a time

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"Promoting location privacy… one lie at a time"
Talk at Imperial workshop on Privacy

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Promoting location privacy… one lie at a time

  1. 1. promoting location privacy…
  2. 2. promoting location privacy… one lie at a time
  3. 3. daniele quercia
  4. 5. meets
  5. 6. mobile phone location data
  6. 8. recommend social events…
  7. 9. … upon aggregate location data
  8. 11. upon aggregate location data…
  9. 13. upon aggregate location data…
  10. 14. upon aggregate location data…
  11. 15. upon aggregate location data…
  12. 16. #fail $
  13. 17. aggregate data:= data mashup
  14. 18. !!! Public vs. Publicized
  15. 19. Aggregate Data: A tale of disrupted social expectations
  16. 20. share it all [by Facebook CEO]
  17. 21. share it all [by Facebook CEO] share nothing [by Wisdom of the Granmother’s Foundation]
  18. 22. share it all [by Facebook CEO] share nothing [by Wisdom of the Granmother’s Foundation] share fake data [by Us]
  19. 23. share fake data [by Us]
  20. 24. Idea:
  21. 25. true location + + “99” fake locations
  22. 26. true location + + “99” fake locations true location + + “99” fake locations true location + + “99” fake locations
  23. 27. #phones?
  24. 28. (random) fake locations
  25. 29. Tube passengers in London & car drivers in Zurich: accurately estimate #people
  26. 30. Tube passengers in London & car drivers in Zurich: accurately estimate #people (18% error with 99% fake locations)
  27. 31. (random) fake locations
  28. 32. (random) fake locations Evade paying taxes? Don’t answer! Flip a coin instead
  29. 33. Yes! [truth]
  30. 34. true location + + “99” fake locations true location + + “99” fake locations true location + + “99” fake locations
  31. 35. promoting location privacy… one lie at a time
  32. 36. Future
  33. 37. Future 1|social norms
  34. 38. Future 2|reintroducing forgetting

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