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Robin Sommer's Publications

Sherlock Holmes' Evil Twin: On The Impact of Global Inference for Online Privacy
Citation key FMSW-SHETOIGIOP-11
Author Friedland, Gerald and Maier, Gregor and Sommer, Robin and Weaver, Nicholas
Title of Book New Security Paradigms Workshop (NSPW '11)
Pages 105–114
Year 2011
ISBN 978-1-4503-1078-9
DOI http://dx.doi.org/10.1145/2073276.2073287
Location Marin County, CA, USA
Address New York, NY, USA
Month September
Publisher ACM
Abstract User-supplied content–-in the form of photos, videos, and text–-is a crucial ingredient to many web sites and services today. However, many users who provide content do not realize that their uploads may be leaking personal information in forms hard to intuitively grasp. Correlation of seemingly innocuous information can create inference chains that tell much more about individuals than they are aware of revealing. We contend that adversaries can systematically exploit such relationships by correlating information from different sources in what we term global inference attacks: assembling a comprehensive understanding from individual pieces found at a variety of locations, Sherlock-style. Not only are such attacks already technically viable given the capabilities that today’s multimedia content analysis and correlation technologies readily provide, but we also find business models that provide adversaries with powerful incentives for pursuing them.
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