AccelPrint: Imperfections of Accelerometers Make Smartphones Trackable

Author(s): Sanorita Dey, Nirupam Roy, Wenyuan Xu, Romit Roy Choudhury and Srihari Nelakuditi

Download: Paper (PDF)

Date: 22 Feb 2014

Document Type: Briefing Papers

Additional Documents: Slides

Associated Event: NDSS Symposium 2014

Abstract:

This paper shows that accelerometers on smartphones possess unique fingerprints, i.e., they respond differently to the same stimulus. The differences in responses are subtle enough that they do not affect the rated functionality. Nonetheless, we demonstrate that, upon close inspection, these fingerprints emerge with consistency, enabling user tracking without cookies.