AliExpress Uses WebAudio API and Zero-Gain Audio Graphs for Silent Device Fingerprinting

AliExpress’s homepage quietly builds hidden WebAudio processing graphs in the browser, a technique that appears to power an aggressive device-fingerprinting system while producing an unexpected real-world side effect: interfering with Bluetooth multipoint audio switching on connected headphones. Security researcher Laserphile, using multipoint Bluetooth headphones that stay simultaneously paired to a PC and a phone, noticed […]

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