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US cell carriers are selling access to real-time phone location data

zdnet.com

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Re: US cell carriers are selling access to real-time phone location data

#92
post #81

Throwaway account. I work in location / mapping / geo. Some of us have been waiting for this to blow (which it hasn't yet). The public has zero idea how much personal location data is available. It's not just your cell carrier. Your cell phone chip manufacturer, GPS chip manufacturer, phone manufacturer and then pretty much anyone on the installed OS (android crapware) is getting a copy of your location data. Usually…

And how can I buy this realtime data? Also > Hedge funds or services who analyze it for hedge funds is the big one. It's normal to track hundreds of millions of people a day and trade stocks based on where they go. Any articles/webpages about this one? Or a company name who is doing it?

Advan, Reveal Mobile, QuestMobile, Pinsight, Streetlight Data, RootMetrics, OpenSignal, SafeGraph are a few of the companies selling various forms of mobile user location data.

Re: US cell carriers are selling access to real-time phone location data

#93

Throwaway account. I work in location / mapping / geo. Some of us have been waiting for this to blow (which it hasn't yet). The public has zero idea how much personal location data is available. It's not just your cell carrier. Your cell phone chip manufacturer, GPS chip manufacturer, phone manufacturer and then pretty much anyone on the installed OS (android crapware) is getting a copy of your location data. Usually…

I can confirm this is happening, I designed some of the analysis systems used. Contrary to what many people assume, this is not just a US thing. It is done throughout the industrialized world to varying degrees, including countries where most people believe privacy protections disallow such activity. Governments tacitly support it because they've found these capabilities immensely useful for their own purposes.

Re: US cell carriers are selling access to real-time phone location data

#94
post #75

Throwaway account. I work in location / mapping / geo. Some of us have been waiting for this to blow (which it hasn't yet). The public has zero idea how much personal location data is available. It's not just your cell carrier. Your cell phone chip manufacturer, GPS chip manufacturer, phone manufacturer and then pretty much anyone on the installed OS (android crapware) is getting a copy of your location data. Usually…

This is a problem with the GSM/UMTS standards themselves. Carriers always know where you are, but one could create a standard where they wouldn't have to know unless you make a call. With enough encryption and effort, I'm pretty sure one could even create a standard where carriers would never know where you are, even while you are using services.

They have to know your location if you want to receive a call.

Re: US cell carriers are selling access to real-time phone location data

#95

> Kevin Bankston, director of New America's Open Technology Institute, explained in a phone call that the Electronic Communications Privacy Act only restricts telecom companies from disclosing data to the government. It doesn't restrict disclosure to other companies, who then may disclose that same data to the government. It seems like intelligence services spend a lot of their time dreaming up ways to do an end-run…

I'd rather them try to do end-runs around the law than run it up the gut... (If I had to choose)

What if they were simply held to a higher standard and not allowed to operate with practical impunity?

Re: US cell carriers are selling access to real-time phone location data

#96
post #60

Carriers are also selling your billing records. They offer a service to return the carrier billing address/name based on the mobile number. Not only this but late last year all 4 of the major US carriers are offering APIs to convert mobile IP to a billing record (name/address/phone number).

This is even more disconcerting - just out of curiousirty what does this cost?

Re: US cell carriers are selling access to real-time phone location data

#97
post #86

Earlier quoted context omitted.

some of crapware can be avoided by using custom ROMs, but not all of it. For example: Qualcomm IZat location services and other location-based trustzone applets remain running even on custom ROMs.

>Qualcomm IZat location services did a quick check, it's not on my phone (SD 820 SoC). >other location-based trustzone applets remain running even on custom ROMs. I have no doubt some proprietary blobs still remain on custom ROMs, but do those actually send back location data to the OEM?

> did a quick check

How? Thanks.

Re: US cell carriers are selling access to real-time phone location data

#98
post #63

Earlier quoted context omitted.

The problem is once it's at the cell carrier level it doesn't even matter if you use a dumb phone. They know roughly where you are based on tower triangulation.

As an amateur radio operator, I would expect nothing less for carrying a highly networked radio transceiver with loads of sensors including geopositioning. Simply put: don't want to be tracked? Put your phone in a lead sealed box or leave it at home. Tracking only tracks the phone , not your person.

Yeah they know where you are at any given moment, but they don't have to record it. And they especially don't have to sell it to third parties. That's what we mean by "tracking".

Re: US cell carriers are selling access to real-time phone location data

#99
post #9

I wondered how the spam callers knew what area code I was in while traveling out of state. I would assume that through clustering analysis (eg coworkers/friends travel together) even fairly coarse position data can allow you to construct relationships. Then they can spam/fish both you end your coworkers with the same fake number. That makes it seem more important to answer and more organic.

A friend of mine just got back from NYC and then received a fake call from an NYC area code. I get several every day from random area codes, and we had to wonder whether it was coincidence or not.

Re: US cell carriers are selling access to real-time phone location data

#100
post #75

Throwaway account. I work in location / mapping / geo. Some of us have been waiting for this to blow (which it hasn't yet). The public has zero idea how much personal location data is available. It's not just your cell carrier. Your cell phone chip manufacturer, GPS chip manufacturer, phone manufacturer and then pretty much anyone on the installed OS (android crapware) is getting a copy of your location data. Usually…

This is a problem with the GSM/UMTS standards themselves. Carriers always know where you are, but one could create a standard where they wouldn't have to know unless you make a call. With enough encryption and effort, I'm pretty sure one could even create a standard where carriers would never know where you are, even while you are using services.

How does one determine which tower to route an incoming call through, in your model? How could roaming work?

Spoiler: I don’t think doing what you are describing is feasible.

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