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What Does It Take to Track a Million Cell Phones?

thehftguy.com

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Re: What Does It Take to Track a Million Cell Phones?

#11

Earlier quoted context omitted.

There was a talk/demo I saw a few years ago that went into great detail about how this works. I remember it was given by a German. Anyone know what I am talking about? Edit: It was a video.

I remember something similar, it was a presentation given at CCC in Germany. Tried searching for it on their YouTube channel, just to discover said channel was terminated for breaking YouTube ToS?! That's really sad, their channel had videos of all the past talks from the CCC, an amazing resource that's now gone. I think this is the one you might have been talking about: https://www.youtube.com/watch?v=lsIriAdbttc If…

https://www.youtube.com/watch?v=-wu_pO5Z7Pk

https://berlin.ccc.de/~tobias/31c3-ss7-locate-track-manipula...

As seen on HN: https://news.ycombinator.com/item?id=8803998

Re: What Does It Take to Track a Million Cell Phones?

#12
post #2

The phone companies already do this, more or less, as is shown in court cases where cell phone records are brought in as evidence A decade ago that data was a little more iffy (i.e. it was more a good estimate (typically within half a mile or less) than a true location), but with a combination of more towers (and therefore more data points), the ubiquity of smartphones (which check in more often, are doing geolocatio…

> The phone companies already do this, more or less, as is shown in court cases where cell phone records are brought in as evidence You can also arrange to buy this information. I worked for a place where you could request someone's location by phone number. There were a lot of contractual obligations around us having the phone owner "allow" us to do that, but no technical ones.

How did you access the data? Via a simple REST api?

Re: What Does It Take to Track a Million Cell Phones?

#14

Earlier quoted context omitted.

> The phone companies already do this, more or less, as is shown in court cases where cell phone records are brought in as evidence You can also arrange to buy this information. I worked for a place where you could request someone's location by phone number. There were a lot of contractual obligations around us having the phone owner "allow" us to do that, but no technical ones.

How did you access the data? Via a simple REST api?

> How did you access the data?

We signed a contract, fulfulled our obligations, and paid them money

> Via a simple REST api?

I really don't remember. It might have been SOAP or something. It was an HTTP-based API, but I don't think it was REST specifically.

There was also a 30s or so delay from request to when we'd get the location back.

Re: What Does It Take to Track a Million Cell Phones?

#16

Earlier quoted context omitted.

I remember something similar, it was a presentation given at CCC in Germany. Tried searching for it on their YouTube channel, just to discover said channel was terminated for breaking YouTube ToS?! That's really sad, their channel had videos of all the past talks from the CCC, an amazing resource that's now gone. I think this is the one you might have been talking about: https://www.youtube.com/watch?v=lsIriAdbttc If…

https://www.youtube.com/watch?v=-wu_pO5Z7Pk https://berlin.ccc.de/~tobias/31c3-ss7-locate-track-manipula... As seen on HN: https://news.ycombinator.com/item?id=8803998

That's the one, nice find.
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