News of the day...
News of the day...
Out of context: Reply #2300
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- i_monk0
http://arstechnica.com/tech-poli…
Beware of ads that use inaudible sound to link your phone, TV, tablet, and PC
The ultrasonic pitches are embedded into TV commercials or are played when a user encounters an ad displayed in a computer browser. While the sound can't be heard by the human ear, nearby tablets and smartphones can detect it. When they do, browser cookies can now pair a single user to multiple devices and keep track of what TV commercials the person sees, how long the person watches the ads, and whether the person acts on the ads by doing a Web search or buying a product.
- Interesting, but I was under the impression that the speakers in my phone/TV/devices can not reproduce ultrasonic sounds.nb
- Also, why use sound when you can simply track people via browsers, accounts, IPs, etc? It seems redundant to use audio to link devices.nb
- Because it might be your computer emitting the sound and your phone or whatever being tracked through it.i_monk