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Beware of Ads That Use Inaudible Sound to Link Your Phone, TV, Tablet, and PC

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Ars Technica:

Privacy advocates are warning federal authorities of a new threat that uses inaudible, high-frequency sounds to surreptitiously track a person’s online behavior across a range of devices, including phones, TVs, tablets, and computers.

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.

Cross-device tracking raises important privacy concerns, the Center for Democracy and Technology wrote in recently filed comments to the Federal Trade Commission. The FTC has scheduled a workshop on Monday to discuss the technology. Often, people use as many as five connected devices throughout a given day—a phone, computer, tablet, wearable health device, and an RFID-enabled access fob. Until now, there hasn’t been an easy way to track activity on one and tie it to another.

“As a person goes about her business, her activity on each device generates different data streams about her preferences and behavior that are siloed in these devices and services that mediate them,” CDT officials wrote. “Cross-device tracking allows marketers to combine these streams by linking them to the same individual, enhancing the granularity of what they know about that person.”

The officials said that companies with names including SilverPush, Drawbridge, and Flurry are working on ways to pair a given user to specific devices. Adobe is developing similar technologies. Without a doubt, the most concerning of the companies the CDT mentioned is San Francisco-based SilverPush.

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Something tells me this has been going on for many years now.  

How many of us have strange battery drainage at various times with our cell phones?  Some weeks my phone battery will last days without a recharge, other times it only lasts 1-2 hours... like I'm actively using it when I'm not.   I also have friends I've told a lot of CT stuff to that tell me about noticing their phone camera lights coming on & off at weird intervals they can't control.

I've got a cheap pre-pay cell phone that barely has internet, no camera at all, and is probably way too cheap & old to be hacked into by modern software that does all that.   Kind of a no brainer if you have gotten past the whole 9/11 inside job BS and went down several rabbit holes.  I saw this coming a long time ago, who didn't?

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Yeah, I've noticed that about phone batteries. Even though we've been through several carriers and phone models, and my husband and I get the same models, his phone batteries always drain much faster than mine. He served in the armed forces several decades ago, so maybe there's a connection.

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Every modulation device that can communicate does. They tell us about the commercial applications but the overt application came first. That's how mind control is achieved on a personal level. If apps can use the sensors and communication technology  in your devices for multiple purposes  can you wrap your mind around what the technology in our everyday tech toys are capable of, tricorder on steroids. They track our every move and single out the threats. Every device has spyware built in, it's a matter of national security. 

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