Silent Surveillance: How AliExpress Uses Inaudible Echoes to Track You
Your browser might be listening to secrets you cannot even hear as old-school ultrasonic tracking makes a shadowy comeback with global retail giants.
By Blip Tech
1 min read
Recent investigations have revealed that the e-commerce giant AliExpress has been utilizing ultrasonic browser fingerprinting to track users across different devices and sessions. This technique involves playing inaudible, high-frequency sounds through a device's speakers which are then picked up by the microphones of nearby devices to link them to a single user profile. While many security experts consider this method outdated and less effective than modern tracking scripts, its continued use raises significant privacy concerns regarding silent, non-consensual data collection and cross-device surveillance.
