AliExpress Tracks Users via Silent Audio Fingerprinting

ALIEXPRESS has been identified using silent audio to fingerprint visitors’ browsers for tracking purposes. Researchers discovered that the site employs inaudible audio signals to create unique profiles based on subtle differences in how browsers and devices process these sounds. This method allows websites to track users without cookies, raising significant privacy concerns. While such fingerprinting can serve legitimate functions like fraud detection, it also complicates user control over tracking. Protective measures include using content blockers, updating browsers, and browsing with separate profiles.