“Apple knows, and the company decided to fight the identification possibility in Safari 17, but their measures don’t fully work.”
Safari 17 adds random noise to audio samples in private mode so sites can’t fingerprint you. Fingerprint, a company that sells fingerprinting, generated 15,000 copies of the signal, averaged the noise away, and got a stable ID in 3ms. It frames the work as catching fraudsters with stolen cards. Apple’s privacy shield lasted until a vendor with a revenue reason did some statistics.