metadaten...und sie klingen so unscheinbar. oder anders gesagt...wir wissen, wann wir dich wegsperren werden. ;-) We used crowdsourced data to arrive at empirical answers. Since November, we have been conducting a study of phone metadata privacy. Participants run the MetaPhone app on their Android smartphone; it submits device logs and social network information for analysis. In previous posts, we have used the MetaPhone dataset to spot relationships, understand call graph interconnectivity, and estimate the identifiability of phone numbers. At the outset of this study, we shared the same hypothesis as our computer science colleagues—we thought phone metadata could be very sensitive. We did not anticipate finding much evidence one way or the other, however, since the MetaPhone participant population is small and participants only provide a few months of phone activity on average. We were wrong. We found that phone metadata is unambiguously sensitive, even in a small population and over a short time window. We were able to infer medical conditions, firearm ownership, and more, using solely phone metadata. webpolicy.org/2014/03/12/metaphone-the-sensitivity-of-telephone-metadata/ ;-)
Posted on: Fri, 21 Mar 2014 22:03:40 +0000
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