• Web Ads (and the NSA) Use Inaudible Sound to Link and Track Your Devices

    December 2, 2015

    Tags: , ,
    Posted in: NSA, Post-Constitution America


    Remember how Ed Snowden told us to stick black tape over our webcams, as the NSA had learned to turn them on remotely without triggering the little light?

    Well, you better stick some tape over your speakers now, too.

    Silverpush, along with several other companies to include Adobe, has found a way to use ultrasonic bleeps emitted by apps, websites, and even TV commercials to combine the identities associated with different devices (tablets, phones, computers, etc), so that your activity on all of them can be aggregated.

    The system works by implanting software (malware?) into various apps you run on your devices and computers. Silverpush will not say which companies are using its technology. When one app is triggered, say by an ultrasonic tone emitted by a website you visit, the other devices nearby hear it and can transmit a unique signal that IDs all your devices as belonging to the same family. You do not know this is happening, you cannot opt out, and you have no idea what data is being collected or where it is going.

    And given the NSA’s proven ability to insert software remotely, you likely do not even need to install an app to become part of this scheme. The NSA has been said to already use ultrasonic sounds to in part bridge air-gapped computers.

    In comments filed with the Federal Trade Commission, the Center for Democracy and Technology raised a warning about these technologies and the ways in which they compromise user privacy. They claim as of April of 2015, SilverPush’s software is used by 67 apps and the company monitors 18 million smartphones.

    Here are some of the marketing firms selling the systems.

    Here is a partial list of the apps.

    The Center for Democracy and Technology pointed out just one way the technology could be misused.

    “For example, an organization could see that a user searched for sexually transmitted disease symptoms on her personal computer, looked up directions to a Planned Parenthood on her phone, and then checked the opening hours of a nearby pharmacy on her tablet. While previously the various components of this journey would be scattered among several services, cross-device tracking allows companies to infer that the user received treatment for an STD. The combination of information across devices not only creates serious privacy concerns, but also allows for companies to make incorrect and possibly harmful assumptions about individuals.”

    Welcome to your future, Citizens.

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    Copyright © 2020. All rights reserved. The views expressed here are solely those of the author(s) in their private capacity.

  • Recent Comments

    • Patricia said...


      Chips next?
      They want it all, right?

      12/2/15 12:47 PM | Comment Link

    • Roger Springfield said...


      Well, this isn’t going to go away. And with up coming technologies, I’m sure what they have now will be child’s play. So, Peter is right, better get used to it.

      12/2/15 2:48 PM | Comment Link

    • bloodypitchfork said...


      quote”Here are some of the marketing firms selling the systems.”unquote


      Satan’s little helpers.
      Seriously.. kill yourself. now.

      Anyone who still thinks Smartphones/apps etc are cool.. seriously..kill yourself. It’s blindingly obvious you are already brain dead.

      As for these scum sucking agents of evil.. I don’t know how they look their CHILDREN in the eye. I do know this though. One day, their children, grandchildren, and great grandchildren, will spit on their graves.

      As for me, given a chance, I’d spit in their face.

      Meanwhile, anyone who buys a new car is an idiot too. All this surveillance shit and more, applies to cars now.

      Orwell must be bowing his head in utter despair.

      oh, btw… calls for gun confiscation coming in.. 5..4..3..2..


      bartender, hot coffee. black. Re-loading ammo takes concentration.

      12/3/15 9:03 AM | Comment Link

    • bloodypitchfork said...


      “Peter is right, better get used to it.”

      Most of this country doesn’t give a flying fuck. In fact, at this moment in time, most of this country would give up their god given rights to make sure the good ole USG will “make them safe”. I for one, will NEVER “get used to it”. Frankly, I smell a revolution coming.

      Btw, it doesn’t take an weatherman to figure out which way the wind is blowing. If audience reaction to Trumps insidious call for using “waterboarding”, “but worse”, isn’t living proof this nation is on track for full blown fascism, I’ll eat my hat. And yours too. At this point in time, any one who believes..”it can’t happen here” is a 100%, bonafide idiot. It’s ALREADY HAPPENING HERE. And it makes me sick to my stomach. I’m just glad my dad isn’t alive to see what is happening in this country. It’s beginning to look like Germany..circa 1938.

      12/3/15 9:16 AM | Comment Link

    • Gilbert said...


      The question remains, but why? Oh, ya, I see, anything can and will be used against you. So if I say, give me Liberty or give me death I am someone to track, to monitor; I am a threat to the State, not an American. Okay, now I know. Thanks for the clarification of where I stand as a citizen.

      12/23/15 11:06 PM | Comment Link

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