this post was submitted on 24 Aug 2026
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185
AliExpress accused of fingerprinting shoppers with silent audio trick that also muted a dev's headphones (www.theregister.com)
submitted 2 days ago by sanitation@lemmy.today to c/technology@lemmy.world
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[–] wreckedcarzz@lemmy.world 13 points 2 days ago (3 children)

This appears to be a new tactic though

[–] roofuskit@lemmy.world 2 points 1 day ago

It's actually an old one.

[–] x00z@lemmy.world 3 points 1 day ago* (last edited 1 day ago)

Add it to the pool of a thousand others.

[–] Zarobi@aussie.zone 9 points 2 days ago

He said the scripts built a WebAudio graph that introduced a sawtooth oscillator to generate a waveform, an analyzer to measure the result after the waveform passes through a browser’s audio implementation, and a script to read the associated frequency data.

This is a fairly interesting method of fingerprinting. Annoying too, as it hogs the audio channels as experienced by the discoverer