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#1 2016-09-15 11:17:00

Robert
Guest

AudioContext Fingerprint

A wide-scale study of online trackers carried out by researchers at Princeton University has identified a new technique being used to try to strip web users of their privacy, as well as quantifying the ongoing usage of some better-known tracking techniques.

The new technique unearthed by the study is based on fingerprinting a machine’s audio stack via the AudioContext API. So it’s not collecting sound played or recorded on a machine but rather harvesting the audio signature of the individual machine and using that as an identifier to track a web user.

https://techcrunch.com/2016/05/19/audio … udy-finds/


AudioContext Fingerprint Test Page
https://audiofingerprint.openwpm.com/

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#2 2016-12-01 17:17:38

alok_epicteam
Administrator

Re: AudioContext Fingerprint

Super post!!  We've also been impressed by that study (there's a great page detailing the results on investigating online tracking at the researchers website) and following the AudioContext API usage.  It's getting a bit of usage but growing so Epic will soon block it :-).

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#3 2016-12-02 08:39:44

Robert
Guest

Re: AudioContext Fingerprint

alok_epicteam wrote:

Super post!!  We've also been impressed by that study (there's a great page detailing the results on investigating online tracking at the researchers website) and following the AudioContext API usage.  It's getting a bit of usage but growing so Epic will soon block it :-).

thank you so much

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#4 2017-09-16 07:42:37

slim shady
Guest

Re: AudioContext Fingerprint

also mouse scrolling tracking

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#5 2018-09-17 22:19:58

alok_epicteam
Administrator

Re: AudioContext Fingerprint

Update:  Audiocontext tracking has been blocked for over a year now in Epic.   We still need need to explore blocking mouse scrolling tracking though.

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