A PoC chrome extension that filters ultrasonic frequencies out.
The extension is released under the Apache 2.0 license.
More info can be found in: http://ubeacsec.org
The full paper can be found here: https://petsymposium.org/2017/papers/issue2/paper18-2017-2-source.pdf
When citing our work, please use the following reference:
@article{mavroudis2017privacy,
title={On the privacy and security of the ultrasound ecosystem},
author={Mavroudis, Vasilios and Hao, Shuang and Fratantonio, Yanick and Maggi, Federico and Kruegel, Christopher and Vigna, Giovanni},
journal={Proceedings on Privacy Enhancing Technologies},
volume={2017},
number={2},
pages={95--112},
year={2017}
}