Inaudible Soundwaves Expose a Spooky New Pathway for Hackers
 

In a presentation scheduled for this week’s Black Hat conference in London, security researchers from University College London will outline how new marketing software that uses ultrasound signals could also expose millions of devices to malicious hacking.


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. A variety of startups and services, including Korea’s Soundlly and the rewards app Shopkick, are developing or using versions of the technology.

http://fortune.com/2016/10/30/soundwave-hacking/