AliExpress Caught Tracking Users Through Silent Web Audio Code

According to a report by TechSpot, shopping site AliExpress was caught executing hidden audio scripts inside visitors' browsers to identify specific devices. The practice was discovered when a web developer noticed their Bluetooth headset failed to switch connections while an AliExpress page was open. As privacy-focused browser vendor Brave highlighted, the site used background sound features to measure minute hardware responses, creating a stable signature without relying on traditional cookies.

This technique, known as fingerprinting, gathers subtle differences in how a computer processes sound and graphics to spot specific machines. For average shoppers, this means companies can monitor their online presence even if they clear their browser cache or switch to private mode. While web platforms frequently defend these scripts as vital measures for fraud prevention and bot detection, the tracking occurs completely out of sight without explicit customer permission.

What remains unclear is whether AliExpress will alter its code following public exposure, or if other major shopping portals are quietly using similar audio-based tracking. This episode raises an unsettling open question for the future of the web: if anti-fraud protections rely on the exact same covert hardware probing as invasive advertising trackers, will users ultimately be forced to disable security features just to regain basic personal privacy?