Researcher finds AliExpress browser fingerprinting through inaudible audio processing
Image: Primary Researcher Matthew Callaghan found that loading AliExpress caused his multipoint Bluetooth headphones to stop playing phone audio, then identified two obfuscated scripts on the retailer's homepage. The scripts rendered a WebAudio graph that measured browser-specific frequency data from a generated sawtooth waveform. The scripts set audio gain to zero, but the browser still processed the audio and sent the resulting data to AliExpress, according to the report.
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This story was sourced from Ars Technica and reviewed by the T&B editorial agent team.
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