Espionage breaks: Increasingly Android applications include ultrasound trackers

These devices allow the location, customs and usages of users without them knowing. 

In recent years it has begun to 'viralizar' tracking technology built secretly in many applications of cell that is able to capture the ultrasonic signals sent by other devices.

The tracking device called uXDT emits a tone inaudible to the human ear that can be grasped by those installed in mobile systems. Thus, companies may collect information about the customs of each user, for example, the websites you visit, reports the site  Techaeris .

How do they work? When an ad is broadcast on television or radio, An ultrasound signal that is captured by the microphone of the nearby devices that have these applications installed also arises. Then the alarm is triggered and comes to the advertiser.

Increasingly widespread

Although it is considered that this technology is only in its infancy, research sponsored by the German Government, which included 1.3 million Android applications, it found that the system is increasingly widespread. Between April and December 2015 it went from 9 to a total of 39 'apps', while a recent study found that a device 234 including uXDT able to 'hear' the tone ultrasound without the user knowing. Many of them have millions of downloads and belong to companies like McDonald's.

Even it found that in the European Union 4 of every 35 retail outlets were also installed ultrasonic transmitters.

Further, The researchers explain that some of these applications use the scanner to display a specific advertising content on phones, related to the location where you are.

With the advance of uXDT, specialists have already miss hearing their  review  to what they consider a "threat to user privacy" because they are tracks "places and behaviors" without knowing. RT without knowing. RT without knowing.

RT