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Unique in the Crowd: The privacy bounds of human mobility
We study fifteen months of human mobility data for one and a half million individuals and find that human mobility traces are highly unique. In fact, in a dataset where the location of an individual is specified hourly, and with a spatial resolution equal to that given by the carrier's antennas...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3607247/ https://www.ncbi.nlm.nih.gov/pubmed/23524645 http://dx.doi.org/10.1038/srep01376 |
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author | de Montjoye, Yves-Alexandre Hidalgo, César A. Verleysen, Michel Blondel, Vincent D. |
author_facet | de Montjoye, Yves-Alexandre Hidalgo, César A. Verleysen, Michel Blondel, Vincent D. |
author_sort | de Montjoye, Yves-Alexandre |
collection | PubMed |
description | We study fifteen months of human mobility data for one and a half million individuals and find that human mobility traces are highly unique. In fact, in a dataset where the location of an individual is specified hourly, and with a spatial resolution equal to that given by the carrier's antennas, four spatio-temporal points are enough to uniquely identify 95% of the individuals. We coarsen the data spatially and temporally to find a formula for the uniqueness of human mobility traces given their resolution and the available outside information. This formula shows that the uniqueness of mobility traces decays approximately as the 1/10 power of their resolution. Hence, even coarse datasets provide little anonymity. These findings represent fundamental constraints to an individual's privacy and have important implications for the design of frameworks and institutions dedicated to protect the privacy of individuals. |
format | Online Article Text |
id | pubmed-3607247 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-36072472013-03-25 Unique in the Crowd: The privacy bounds of human mobility de Montjoye, Yves-Alexandre Hidalgo, César A. Verleysen, Michel Blondel, Vincent D. Sci Rep Article We study fifteen months of human mobility data for one and a half million individuals and find that human mobility traces are highly unique. In fact, in a dataset where the location of an individual is specified hourly, and with a spatial resolution equal to that given by the carrier's antennas, four spatio-temporal points are enough to uniquely identify 95% of the individuals. We coarsen the data spatially and temporally to find a formula for the uniqueness of human mobility traces given their resolution and the available outside information. This formula shows that the uniqueness of mobility traces decays approximately as the 1/10 power of their resolution. Hence, even coarse datasets provide little anonymity. These findings represent fundamental constraints to an individual's privacy and have important implications for the design of frameworks and institutions dedicated to protect the privacy of individuals. Nature Publishing Group 2013-03-25 /pmc/articles/PMC3607247/ /pubmed/23524645 http://dx.doi.org/10.1038/srep01376 Text en Copyright © 2013, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/ |
spellingShingle | Article de Montjoye, Yves-Alexandre Hidalgo, César A. Verleysen, Michel Blondel, Vincent D. Unique in the Crowd: The privacy bounds of human mobility |
title | Unique in the Crowd: The privacy bounds of human mobility |
title_full | Unique in the Crowd: The privacy bounds of human mobility |
title_fullStr | Unique in the Crowd: The privacy bounds of human mobility |
title_full_unstemmed | Unique in the Crowd: The privacy bounds of human mobility |
title_short | Unique in the Crowd: The privacy bounds of human mobility |
title_sort | unique in the crowd: the privacy bounds of human mobility |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3607247/ https://www.ncbi.nlm.nih.gov/pubmed/23524645 http://dx.doi.org/10.1038/srep01376 |
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