๐จSHOCKING: AliExpress was secretly tracking users through their computer's audio system without consent.
A developer only discovered it because his Bluetooth headphones stopped switching between devices while browsing the site.
He found hidden scripts playing an inaudible sound and measuring how each device processed it differently, creating a fingerprint that cannot be cleared like a cookie.
The scripts also collected screen data, device memory, mouse behavior, and network signals, all sent back to Alibaba's servers.
Muting the tab does not stop it. Firefox and Brave block it by default. Chrome does not.