Firefox hardened against this fingerprint method a couple years ago reportedly.
this post was submitted on 25 Aug 2026
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Privacy
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Isn't that just "no unrestricted access to microphone or camera"?
Doesn't the website need to ask for microphone permissions first?
It's playing inaudible audio, not recording.
But doesn't it need to record the audio to do any kind of fingerprinting?
If I understood it correctly, it only checks how your hardware reacts to audio being played.
It's fingerprinting your system to gain information about you that way,, not through listening in on you in real space.
Anti-fraud detection? The entire company is built on selling lies and deceit =/
I think one company I worked for was nearly wiped out in the startup phase by someone there taking almost all the money the company had and then disappearing without delivering the components they needed
Modern browsers are a mistake, aye?
Meh, it's not just or even especially the browsers.
First of all, AliExpress did a thing here, not your browser.
And if your browser didn't have the capability to basically work as a small multimedia machine inside your machine then they'd find other ways to achieve similar things.
Unless of course your OS setup makes such things impossible, as any sane OS should.
Microphone access to any app, any site, without asking? That's madness.
The browser allows it. It could put up a notification "allow access to speakers". It should do so with the mic.
I once tried a website that shows much web browsers reveal about you and your system... it's crazy how much his activated by default.
Which website?
I can't remember. Someone shared one here on the fediverse and I didn't bookmark it. There are alternatives:
- https://www.browserscan.net/
- https://coveryourtracks.eff.org/
- https://amiunique.org/fingerprint
- https://everysiteknows.ferrucc.io/
Try it on your desktop and on your mobile.
Thank you!
Once again, it depends on the browser and the OS, which ultimately governs the hardware.
90+% use chrome, so guess what the browser knows about you....
Seriously though: shouldn't one just use a browser/OS combo that makes it impossible to give such unrestricted access to peripherals without asking?