upnorth

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Quote : " Marketing companies are always on the lookout for new methods to track user activity on the Internet. These information are used to display targeted advertisement to users which have a better return than less-targeted ads.

The more a company knows about a user, the higher the return and that is the main reason why companies step up the tracking game despite public outcry about it and the rise of ad-blockers.

In fact, tracking is one of the core reasons -- the other is invasive ads -- that users install ad-blockers on their devices.

Cross-Device Tracking is yet another ingenious method to track users. As the name suggests, it has the capability to track users across devices. This is done by using high-frequency sounds that are inaudible to the human ear.

The method links devices such as web browsers, mobile devices or TVs through the use of these sounds and browser cookies resulting in a combined tracking profile of the user across devices instead of just individual devices.
"

Quote : " It is interesting to note that Cross-Device Tracking resembles badBios, a malware discovered in 2013 that uses inaudible sounds to bridge air-gapped computer systems. "

Source : Cross-Device Tracking: a privacy invasive tracking method - gHacks Tech News

If one investigate this topic a little deeper it's very easy to see how extremely egar and excited the market is about this and how little they actually care about those " small " things called...customers privacy. The badBios reference is also interesting and if it's used with CDT shouldn't be a major surprise but ofcourse that will more then likely never ever become public knowledge. Companies normaly don't like doing a " Volkswagen " statement and admit they lied to everyone.
 
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