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The article isn't about stores transmitting beacons that our devices pick up. It's about our devices transmitting beacons that are then picked up by anyone who
by ksenzee 10y ago
The article isn't about stores transmitting beacons that our devices pick up. It's about our devices transmitting beacons that are then picked up by anyone who cares to listen.
- kapnobatairza 10y agoIt isn't? "The technology, called ultrasonic cross-device tracking, embeds high-frequency tones that are inaudible to humans in advertisements, web pages, and even physical locations like retail stores." "any device microphone—like those accessed by an app on a smartphone or tablet—can detect the signal" How is this any different from a bluetooth beacon being detected by a mobile app? You are just broadcasting the identifier in a different manner.