He who is Jeff Liebermann said on Wed, 22 Nov 2017 09:32:54 -0800:
> I dunno and don't have the time to check. Since it's probably buried
> the application code, I doubt if I'll find anything.
That's understandable.
It was reported only yesterday, so, the pundits need to dig deeper for us.
> However, all this begs another question. Assuming that Wi-Fi is also
> turned off in Airplane mode, what the hell is Google doing
> TRANSMITTING anything? Unless its buffered, to use the phone for
> location tracking would require transmitting the tower ID's when they
> are heard.
The code, as I understand it, only activates when you're connected to the
Internet (via either cellular data or WiFi). Nothing else is required.
* no sim card
* factory defaults (i.e., no apps)
* location services turned off
<
https://qz.com/1131515/google-collects-android-users-locations-even-when-location-services-are-disabled/>
"Devices with a cellular data or WiFi connection appear to send the data to
Google each time they come within range of a new cell tower."
Slate.com also said the information is sent the moment two things happen:
1. You're on the Internet (using WiFi or cellular data)
2. And you're "in range" of a cellular tower
<
http://www.slate.com/articles/technology/technology/2017/11/how_to_stop_phone_from_tracking_location_android_latest_to_prove_you_should.html>
> I would think that the airline companies would take a dim
> view of this as Google's transmitting anything in an commercial
> airliner in flight could interfere with aircraft navigation, which is
> the purpose of having the Airplane mode. If some airliner falls out
> of the sky due to a navigation error, Google's tracking trickery could
> easily be deemed responsible.
I think the transmission only occurs if two things are simultaneous:
1. You're in range of a cell tower, and,
2. You're already on the Internet
If the SIM card is out of the phone, then the only way you'll be on the
Internet is with WiFi (or maybe also reverse tethering, I suppose).
> Incidentally, there's quite a bit more information available that
> could be used for location tracking than just the tower ID. The big
> one is the propagation delay (ping time) between the handset and the
> cell tower, which defines a location radius.
This is very interesting, as you always know the details that are juicy.
Where we both live, towers aren't necessarily close, but if, say, for
example, I'm staking out those pot farmers in Boulder Creek who were
arrested for shooting at suspected pot thieves during that fire a couple of
weeks ago, then I don't want ANY information about my proximity to ANY cell
tower to be transmitted.
Here's what Google was quoted as having said in the QZ.com article:
"In January of this year, we began ... using Cell ID codes as an additional
signal to further improve the speed and performance of message delivery"
> Two or three such delays
> would obtain your location quite accurately.
This is good information to know.
Well, actually, it's bad information to know.
But you know what I mean.
> However, Google could
> just as easily transmit the GPS location or the individual satellite
> delays in order to obtain a location. It's odd that they would
> transmit only the tower ID's, as there so much more available.
They *are* getting *more* than the unique cell tower id.
1. MCC
2. MNC
3. CID
Google provided this quote to Gizmodo:
"To ensure messages and notifications are received quickly, modern
Android phones use a network sync system that requires the use of Mobile
Country Codes (MCC) and Mobile Network Codes (MNC). In January of this
year, we began ... using Cell ID codes as an additional signal to further
improve the speed and performance of message delivery. ... MCC and MNC
provide necessary network information for message and notification delivery
and are distinctly separate from Location Services..."
<
https://gizmodo.com/your-android-phone-has-been-sending-location-data-to-go-1820639889>
> I should probably fire up the spectrum analyzer, turn off the wi-fi,
> and see if my Samsung S6 is belching anything in Airplane mode.
I think airplane mode might still be working - except on some iOS devices
with the older OS's (which some of mine are on).