Promoting location privacy… one lie at a time

promoting location privacy…

promoting location privacy… one lie at a time

daniele quercia

mobile phone location data

recommend social events…

… upon aggregate location data

upon aggregate location data…

#fail $

aggregate data:= data mashup

!!! Public vs. Publicized

Aggregate Data: A tale of disrupted social expectations

share it all [by Facebook CEO]

share it all [by Facebook CEO] share nothing [by Wisdom of the Granmother’s Foundation]

share it all [by Facebook CEO] share nothing [by Wisdom of the Granmother’s Foundation] share fake data [by Us]

share fake data [by Us]

true location + + “99” fake locations

true location + + “99” fake locations true location + + “99” fake locations true location + + “99” fake locations

#phones?

(random) fake locations

Tube passengers in London & car drivers in Zurich: accurately estimate #people

Tube passengers in London & car drivers in Zurich: accurately estimate #people (18% error with 99% fake locations)

(random) fake locations

(random) fake locations Evade paying taxes? Don’t answer! Flip a coin instead

Yes! [truth]

true location + + “99” fake locations true location + + “99” fake locations true location + + “99” fake locations

promoting location privacy… one lie at a time

Future

Future 1|social norms

Future 2|reintroducing forgetting

by Daniele Quercia