Prying into Private Spaces Using Mobile Device Motion Sensors

Zakery Fyke, Isaac Griswold-Steiner, Abdul Serwadda

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Human made structures are designed in a predictable manner, conforming to the expectations of those who use them. These underlying patterns lend themselves to repetition in the way people get between different locations. We investigated the feasibility of an attacker using motion sensor data against their target, with the objective of predicting where they move and what activities they engaged in. In this work, we show that the gyroscope and accelerometer can be used to drive a privacy attack that stealthily maps out a user's private space with high accuracy. In particular, we show that a mobile app with access to this data can leverage it to analyze a user's step execution dynamics, turn operations, and general body movement activities and then methodically combine this information to map out paths and landmarks in protected spaces, such as houses. Using a dataset of 26 users who executed a number of activities and a combination of classification, regression, and distance matching techniques, we show this privacy attack to generate maps whose Normalized Hausdorff Distance from the ground-truth is as low as 0.1159.

Original languageEnglish
Title of host publication2019 17th International Conference on Privacy, Security and Trust, PST 2019 - Proceedings
EditorsAli Ghorbani, Indrakshi Ray, Arash Habibi Lashkari, Jie Zhang, Rongxing Lu
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728132655
DOIs
StatePublished - Aug 2019
Event17th International Conference on Privacy, Security and Trust, PST 2019 - Fredericton, Canada
Duration: Aug 26 2019Aug 28 2019

Publication series

Name2019 17th International Conference on Privacy, Security and Trust, PST 2019 - Proceedings

Conference

Conference17th International Conference on Privacy, Security and Trust, PST 2019
CountryCanada
CityFredericton
Period08/26/1908/28/19

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