> The owner of a Wi-Fi access point can opt it out of Apple's Location Services by changing the access point's SSID (name) to end with "_nomap." For example, "Access_Point" would be changed to "Access_Point_nomap."
imagetic 1 hours ago [-]
I had an an interference issue with a logitech mouse on my desk so I asked Pi to take a look. Next thing I knew I'm in the macOS sdk measuring all the wireless devices at my desk. That was the coolest experience to date. I could see everything in our house in RF.
For a while they had a paid program, I had a Windows Mobile app I could run with an external GPS dongle that would record wifi APs and location, upload to skyhook, who would occasionally cut me a check for my trouble. I made tens of dollars!
Mashimo 23 hours ago [-]
Ohhh, there was money to be made with war driving? I just got points on a German bb forum.
newtwentysix 14 hours ago [-]
Wow! That reminded me of an interesting article in NYT about Skyhook wirless.
I started rotating my BSSID weekly after I learned Apple and Google abused it to track the location of people and devices.
Permanent hardware or software IDs, such as the Windows GUID or machine-id on Linux (systemd) are inevitably abused for surveillance sooner or later.
S0und 1 days ago [-]
You have all the good intentions, but since no one else does this around your location, I don't think you're achieving anything.
astrange 22 hours ago [-]
You mean, they used it so people trying to use their maps apps didn't have to wait several minutes for a cold GPS fix?
gpm 18 hours ago [-]
> wait several minutes for a cold GPS fix
My phone doesn't take several minutes to get a GPS fix even when I'm in the middle of nowhere well beyond the range of cell towers let alone wifi routers...
I understand that in theory it could if it had no clue what time it was either for some reason... but in practice we're talking seconds (though more than 2) not minutes.
Fabricio20 18 hours ago [-]
I feel like that's not a true cold GPS signal! Though I'm not arguing the parents scenario is realistic either. I got a GPS module for a drone I was building and it took 20 minutes to get a proper GPS lock from cold!!! I was sitting there watching betaflight doing it's thing wondering why the heck it takes so long when there's so many satellites in view!
gpm 18 hours ago [-]
You're right that it's not a true cold GPS signal. I've connected to the network in the last 180 days (and thus have information on satellite information), I have a rough clock (time within 20s or so). The phone probably assumes it's closeish to where it last turned on. Etc.
It is the realistic scenario that people would face without using WiFi routers or cell towers though. True cold fixes aren't something phones need to deal with basically ever.
15155 10 hours ago [-]
It doesn't need to be a cold GPS signal, it only needs to be one that doesn't track you. Your drone doesn't have access to the internet to do the almanac and ephemeris download, that's the difference.
Aiding the fix by obtaining data from a faster unidirectional source (instead of satellite to device, it's just internet to device) doesn't reveal anything private, unlike mass-capture of WiFi (B)SSIDs.
Also, I would look into the quality of the GPS radio and antenna you are using - $95 u-blox modules will get an RTK-quality fix without outside assistance in minutes.
05 10 hours ago [-]
20minutes just means a shitty module or lots of ~1.3ghz noise (e.g. from dji o3/o4 or gopro cpu), although bad input filtering and gps located near an antenna could saturate the amplifier even with antenna on a different frequency. 1min is typical for cold fixes but you can make it faster by uploading ephemeris/cache using AssistNow (valid for about a month).
skinfaxi 22 hours ago [-]
How do you coordinate across all of your devices?
XorNot 21 hours ago [-]
The same physical location showing a different SSID every week but the surrounding ones not changing would be deanonymizing you much more aggressively.
People mostly don't change SSIDs or even move networking hardware - e.g. AirBnBs.
Edit: and also are you still carrying a smart phone while doing this? The device which has GPS and a cloud internet connection?
anigbrowl 1 days ago [-]
Isn't this just wha WIGLE does?
jcims 1 days ago [-]
Basically except it's using an Apple service for the backend.
Which will likely get cut off at some point.
mcculley 24 hours ago [-]
Why would it be cut off? Doesn’t Apple use this on devices?
bryancoxwell 18 hours ago [-]
Worth noting that the coordinates for cell towers returned by the WLOC API are coarse enough to be just about useless for locating towers. For APs it’s much better but still not great.
Interesting, wondering why Apple doesn't restrict the queries to its server using a certificate that would be pinned on the devices, etc, so at least you would need a legit iPhone/Mac to be able to do a query?
mcculley 23 hours ago [-]
Are you imagining some certificate unique to each device? What would prevent someone copying it?
BobbyTables2 17 hours ago [-]
I don’t think Apple would have much trouble burying a certificate and key in a IOS device that would be very hard to access.
doublerabbit 1 days ago [-]
Cool. This'll go nicely with my hackslab and tinfoil hat upgrade.
https://support.apple.com/en-us/102515
> The owner of a Wi-Fi access point can opt it out of Apple's Location Services by changing the access point's SSID (name) to end with "_nomap." For example, "Access_Point" would be changed to "Access_Point_nomap."
For a while they had a paid program, I had a Windows Mobile app I could run with an external GPS dongle that would record wifi APs and location, upload to skyhook, who would occasionally cut me a check for my trouble. I made tens of dollars!
https://www.nytimes.com/2009/06/01/technology/start-ups/01lo...
Permanent hardware or software IDs, such as the Windows GUID or machine-id on Linux (systemd) are inevitably abused for surveillance sooner or later.
My phone doesn't take several minutes to get a GPS fix even when I'm in the middle of nowhere well beyond the range of cell towers let alone wifi routers...
I understand that in theory it could if it had no clue what time it was either for some reason... but in practice we're talking seconds (though more than 2) not minutes.
It is the realistic scenario that people would face without using WiFi routers or cell towers though. True cold fixes aren't something phones need to deal with basically ever.
Aiding the fix by obtaining data from a faster unidirectional source (instead of satellite to device, it's just internet to device) doesn't reveal anything private, unlike mass-capture of WiFi (B)SSIDs.
Also, I would look into the quality of the GPS radio and antenna you are using - $95 u-blox modules will get an RTK-quality fix without outside assistance in minutes.
People mostly don't change SSIDs or even move networking hardware - e.g. AirBnBs.
Edit: and also are you still carrying a smart phone while doing this? The device which has GPS and a cloud internet connection?
Which will likely get cut off at some point.