No GPS and no Wi-Fi networks. Yan Michalevsky, Dan Boneh and Aaron Schulman, researchers at Stanford University in the US only had to use an app that analyzes the consumption battery and access credentials to relays mobile network to find out the location of one or more Android phones.
How is the battery reveals the location of a person? The simplified answer is something like this: The energy consumption increases in the same proportions as the distance between a mobile phone and a base station, and the total number of obstacles that lie between these two devices. Knowing the energy consumption that is being done to maintain a voice call or a data connection, it is possible to find the approximate location of one or more Android phones.
app created by Stanford researchers with the support of Rafael LTD records data access relaying networks and is able to avoid the analysis of errors that could result from using more demanding applications or features (games, cameras, etc. .) that have nothing to do with location or connection to cellular networks. The tests were carried out on 3G networks.
The analysis of energy consumption may seem unusual for an app, but the researchers point out that the Play of Google is 179 can find apps that do this type accounting (for purposes which are unknown).
“We only use the permissions to ensure network connectivity and data relating to the consumption of energy. Are very common permissions on apps, and probably will not raise suspicion for potential victims’, the study produced by the Stanford researchers, quoted by the BBC.
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