Technical Articles From Technical University Braunschweig
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Privacy Threats through Ultrasonic Side Channels on Mobile Devices
May 11, 2017 | Daniel Arp, Erwin Quiring, Christian Wressnegger and Konrad Rieck
Device tracking is a serious threat to the privacy of users, as it enables spying on their habits and activities. A recent practice embeds ultrasonic beacons in audio and tracks them using the microphone of mobile devices.
In this paper, we explore the capabilities, the current prevalence and technical limitations of this new tracking technique based on three commercial tracking solutions. To this end, we develop detection approaches for ultrasonic beacons and Android applications capable of processing these....
