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+--- Thread: Ultrasound Tracking Could Be Used to Deanonymize Tor Users (/showthread.php?tid=1266)
Ultrasound Tracking Could Be Used to Deanonymize Tor Users - reactor - 02-25-2017
Ultrasounds emitted by ads or JavaScript code hidden on a page accessed through the Tor Browser can deanonymize Tor users by making nearby phones or computers send identity beacons back to advertisers, data which contains sensitive information that state-sponsored actors can easily obtain via a subpoena.
The attack that the research team put together relies on tricking a Tor user into accessing a web page that contains ads that emit ultrasounds or accessing a page that contains hidden JavaScript code that forces the browser to emit the ultrasounds via the HTML5 Audio API.
https://www.bleepingcomputer.com/news/security/ultrasound-tracking-could-be-used-to-deanonymize-tor-users/
https://www.youtube.com/watch?v=GRPYF9b7_tA
hey Boss, please block this
RE: Ultrasound Tracking Could Be Used to Deanonymize Tor Users - Admini - 02-26-2017
Audio API can be disabled in Cent.
There is an option:"Under the hood"->"Privacy"->"Disable HTML5 AudioContext"