The Myth of Spoofing Your Location via GPS

Ant-Man

Well-Known Member
You are only spoofing yourself. Three years ago, a paper was released by a team of researchers from Stanford's Computer Science department demonstrating how it was possible to track cell phone location with more accuracy and precision than by using GPS or WiFi connectivity. It's done by measuring phone battery level, information provided to all apps with no permission required. [1] A calibration data set is created by measuring a phone's battery levels while traversing a known route. Once the area is calibrated, any phone's location can be inferred with higher precision than with GPS. Machine learning is applied to individual phone usage to filter out the "noise" of other apps battery usage (the noise is not correlated with the phones location so it can be easily removed within a few minutes of monitoring).
All the processing can be done on the phone and sent to a remote server in real time. Requirements: access to battery state and remote network access.

How this relates to LAX and the banning waves and anything else is not for me to speculate on.

[1] PowerSpy: Location Tracking using Mobile Device Power Analysis
 

Uncle-not-Ant

Well-Known Member
If you want to get rid of the HRoids ... enough salad to go

wooosh

when you sit down.

Two weeks of that, keep eating the Big Salad daily, but the wooosh will subside along with the roids.
 

Ant-Man

Well-Known Member
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Awesome, so again I say how do they get access?
If you're phone is on and the app has network permission, it has access. Uber app has access. It's safe to infer that Uber knows and has known exactly where everyone is when the app is running. The log is transferred in real time if internet access is present or the next time the phone connects.
 

DrivingForYou

Well-Known Member
How exactly would battery level pinpoint location?
It doesn't. However, tracking POWER CONSUMPTION can reveal location information, as power consumption goes up the farther a phone is from a cell site.

However, the claim it's more accurate than GPS is a crock. It requires first mapping the consumption data, and requires a standardized route. As such it's utility is limited to say the least.
 
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Adieu

Well-Known Member
It doesn't. However, tracking POWER CONSUMPTION can reveal location information, as power consumption goes up the farther a phone is from a cell site.

However, the claim it's more accurate than GPS is a crock. It requires first mapping the consumption data, and requires a standardized route. As such it's utility is limited to say the least.
In the boonies, maybe... in a chaotic city, nah
 
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