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/se...tor-users/
https://www.youtube.com/watch?v=GRPYF9b7_tA
hey Boss, please block this
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/se...tor-users/
https://www.youtube.com/watch?v=GRPYF9b7_tA
hey Boss, please block this