Security Voice-controlled systems like Alexa and Siri can be hijacked by ultrasonic commands The sounds are inaudible to humans By Rob Thubron, September 7, 2017, 1:30 PM
Electronics Mobile Ticketmaster is using smartphone-based ultrasonic audio to get attendees into events quicker Could this be the future of event tickets? By Rob Thubron, July 5, 2017, 6:15 AM