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Old 05-24-17, 04:42 PM
Yappi Yappi is offline
Go Buckeyes
Join Date: 04-15-01
Location: Ohio
Posts: 48,406
Yappi will become famous soon enough
Google removes apps that use ultrasonic frequencies to track users

Kind of scary how much information is collected about each of us.

Just got a sales call from a cemetery trying to sell lots. Curious whether it was just a random call or is there some grand list of people that are going to need this service very soon...

Your phone may be sending out ultrasonic tones right now. Sounds the human ear can't pick up, but which other devices can.

A research team sponsored by the German government discovered more than 230 apps on Google's Android market that secretly tracked users through the use of ultrasonic audio. The so-called ultrasonic tracking beacons can help create intimate profiles of people, tying them to a slew of devices communicating with each other through the beacons.

Here's how it works: Let's say your friend's smart TV uses the beacon, and you watch that TV. When a beacon from your phone meets the one from the TV, advertisers tied to both learn a bit more about you and your friend.
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