The underlying technology in question is known as ultrasonic cross-device tracking, or uXDT. Cross-device tracking has been called a ‘holy grail’ for marketers, allowing them to, for instance, tell your phone when you’re watching a particular TV show, or share data about laptop web browsing to your tablet. […] The UCL team says the lack Read more about Inaudible Soundwaves Expose a Spooky New Pathway for Hackers[…]