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This article details how AliExpress leverages the Web Audio API to generate silent audio graphs for aggressive device fingerprinting, effectively disrupting Bluetooth multipoint connections as a side effect. The technique relies on obfuscated scripts that create active audio contexts without producing audible output, highlighting a significant privacy risk where standard browser APIs are repurposed for surveillance rather than media playback.

Source coveringCybersecurity News

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

Cybersecurity NewsAugust 25, 20263 min read

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 […] The post AliExpress Uses WebAudio API and Zero-Gain Audio Graphs for Silent Device Fingerprinting appeared first on Cyber Security News.

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