[talks] 4:30pm Wed Oct 7 colloquium on Internet privacy

Jennifer Rexford jrex at CS.Princeton.EDU
Sun Sep 20 20:40:00 EDT 2009

  Speaker: Balachander Krishnamurthy, AT&T Labs--Research
  Title: On the Internet Someone Knows You Are a Dog
  Date/time: 4:30pm Wed Oct 7 (tea at 4pm in tea room)
  Location: CS 105 (small auditorium)

   We have been examining the leakage of privacy on the Internet:
   how information related to individual users is aggregated as they
   browse seemingly unrelated Web sites. Thousands of Web sites across
   numerous categories, countries, and languages are studied to generate
   a "privacy footprint". I report on a longitudal study consisting of
   multiple snapshots of examination of such diffusion over five years.
   I'll talk about the technical ways by which third-party aggregators
   acquire data, the depth of user-related information acquired, the
   techniques for protecting privacy diffusion and limitations of such
   techniques. Such increasing aggregation of user-related data is  
   out by a steadily decreasing number of entities: a handful are able  
to track
   users' movement across almost all of the popular web sites.  
Virtually all
   the protection techniques have significant limitations highlighting  
   seriousness of the problem and the need for alternate solutions.

   I will also talk about a recent discovery of large-scale leakage of
   personally identifiable information (PII) via Online Social  
Networks (OSN).
   Third-parties can link PII with user actions both within OSN sites  
   elsewhere on non-OSN sites.


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