2026-08-20 / Signal #6
AliExpress Homepage Silently Fingerprints You With WebAudio That Steals Your Bluetooth Headphones
“AliExpress is playing silent music that hijacks your headphones.”
The Story
AliExpress, via obfuscated Alibaba anti-fraud scripts, creates two hidden, zero-gain WebAudio graphs on every homepage load as part of a broad canvas/WebGL/audio fingerprint. The silent oscillator keeps the PC’s Bluetooth audio path alive, so multipoint headphones refuse to switch back to your phone. Tab mute does nothing because there is no media element.
Why It Matters
Shopping sites now own your hardware through invisible audio. Privacy, tracking, and physical-world side effects in one concrete, inspectable hack. Builder utility: uBlock filters are supplied.
Evidence
Technical investigation blog (Aug 20) + Hacker News (166 points)
Sources
Daily scan: 2026-08-20