#20214: Ultrasound Cross Device Tracking techniques could be used to launch deanonymization attacks against some users --------------------------------------+-------------------------- Reporter: VasiliosMavroudis | Owner: tbb-team Type: defect | Status: new Priority: Medium | Milestone: Component: Applications/Tor Browser | Version: Severity: Normal | Resolution: Keywords: | Actual Points: Parent ID: | Points: Reviewer: | Sponsor: --------------------------------------+--------------------------
Comment (by VasiliosMavroudis): Replying to [comment:3 bugzilla]: > At a first glance it looks like OP came here with a tinfoil hat, especially as most 44.1/48 kHz formats are not ultrasound capable. But, in general, there is some chance to become deanonymized during playback of watermarked media (e.g. from YouTube) in a range where compromised devices can record the differences in sound. > > > The prompt would only serve as an annoyance that the user would learn to ignore. > > > Warning as for maximization should be enough. You seem to imply that it's not possible to use ultrasounds to perform this attack. However, there are already a few companies using this technology, e.g., SilverPush, Lisnr. -- Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20214#comment:6> Tor Bug Tracker & Wiki <https://trac.torproject.org/> The Tor Project: anonymity online _______________________________________________ tor-bugs mailing list tor-bugs@lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs