Most apps can monitor your movements, and use the information to target marketing.
WiFi-information can be used by the app developers to locate users, and target surveillance or marketing, shows a study from DTU Compute, according to our site.
It is WiFi-information from Android phones, which can be used to locate users, even if WiFi is turned off on the phone.
A wide range of applications have access to WiFi-information, and thus also to the list of wireless routers, such as the phone scans for every 20 minutes. sec.
With these informations can app developers very accurately determine where users are in 90 percent of the time.
In the Studio we have followed data from 63 DTU students for half a year. The result shows that you can easily follow the users do and barn via WiFi, and thus very accurately determine when people leave home and when they encounter at work.
“People are very predictable and makes many of the same things. So the 10 sites you visit most covers 90% of your time. Therefore, your hovedbevægelses patterns are described through the very few routerere, “explains Associate Professor Sune Lehmann from DTU Compute.
In February, researchers examined 20 of the most popular games in Google Play. 17 of the games had access to WiFi-information, but only six described why.
Then researchers developed with Sune Lehmann spearheaded an application that exclusively aimed to map out a person’s movements, based on information from WiFi.
“We show that anyone can build an app that very likely can reconstruct your movements. So it’s not only the big companies, we must pay attention to here, “says Sune Lehmann.
The information can be used in targeted marketing, by, for example, identify when the users moves into a delimited geographical area.
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