Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

secondcup

macrumors member
Original poster
Feb 12, 2008
87
0
I've read a bit on the forum about how the iPod Touch finds your location (based on available WiFi signals). Here's the strange thing, it works great for me when I'm anywhere BUT home. When I'm at my house, all the apps that use location services (like Google maps etc.), think I'm at an apartment that I USED to live in, about 6 miles from my actual location.

I can't figure this one out. Is there some old registration data in an Apple database somewhere that it's getting this info from?
 
email skyhook wireless about. i had the same problem (kind of). at my house it showed a location 21.6 miles away (although i did not used to live there). i emailed them last week and told them my address and the address that was showing up and they asked me to give them the MAC address for all of the MAC address' surrounding my house. after i did this they said to wait a few weeks and it should work. today, it just started working fine and it shows up at the right location.

email address: support@skyhookwireless.com
 
the mac address for all of the MAC address' surrounding my house.

And that ensures that I'll waste a few minutes salting their database with misinformation about my own router(s).

By all means subscribe your own router's MAC, but when neighbors are being silently location tagged by skyhook, that's a privacy issue.
 
And that ensures that I'll waste a few minutes salting their database with misinformation about my own router(s).

By all means subscribe your own router's MAC, but when neighbors are being silently location tagged by skyhook, that's a privacy issue.

Thanks for the info everyone!

This is fascinating to me. If my location is linked to my router...I'm still at a loss as to why it pinpoints my OLD address. My router and iPod Touch are all new since I moved. Very strange...
 
Thanks for the info everyone!

This is fascinating to me. If my location is linked to my router...I'm still at a loss as to why it pinpoints my OLD address. My router and iPod Touch are all new since I moved. Very strange...

Basically it's the router that is being identified by skyhook.

The idea being that if there are any wireless networks near you, regardless of whether you're actually connected to them, the iphone/ipod can send their MAC addresses (a kind of unique identifier) to skyhook who correlate those addresses with a geographic database that they maintain.

Once skyhook know where your router is physically located, they can use that information to orientate devices that can see your router.
 
And that ensures that I'll waste a few minutes salting their database with misinformation about my own router(s).

By all means subscribe your own router's MAC, but when neighbors are being silently location tagged by skyhook, that's a privacy issue.

Another tactic that Skyhook uses, is to drive a fleet of trucks down the all the navigable streets of major markets, scanning for all the WiFi access points along the way. They record everything they find in their database. This is somewhat akin to what Google does with its Street View feature.

It's not a privacy concern, because your equipment is actively broadcasting this information. That is, you're knowingly and willingly placing it into public view. If you don't want this information being made public, then you should be taking steps to prevent it from crossing outside your private property's boundaries. Note that the MAC address is always openly broadcast, free and clear, as part of every WiFi packet, even if the actual data being carried over the WiFi signal is encrypted.
 
Another tactic that Skyhook uses, is to drive a fleet of trucks down the all the navigable streets of major markets, scanning for all the WiFi access points along the way. They record everything they find in their database. This is somewhat akin to what Google does with its Street View feature.

It's not a privacy concern, because your equipment is actively broadcasting this information. That is, you're knowingly and willingly placing it into public view. If you don't want this information being made public, then you should be taking steps to prevent it from crossing outside your private property's boundaries.

In an ideal world I could possibly persuade my router to respect my property lines, but I've yet to find a really effective way of communicating my desires to it on that front.

Note that the MAC address is always openly broadcast, free and clear, as part of every WiFi packet, even if the actual data being carried over the WiFi signal is encrypted.

I'm well aware of that.

The distinction is the same a given website delivering a cookie, or an embedded 3rd party site (doubleclick for example) delivering a cookie. In the former, one site knows if an anonymous reader has returned. In the later, another site, and one I didn't choose to do business with, knows most to all of the sites I've visited, and can easily do enough data-mining to come close to a good identification match.

I don't care that people outside my house know what my MAC address (currently) is, I do care that there is a database that can be used by any website anywhere to tie my current IP (via MAC) to a physical location.
 
In an ideal world I could possibly persuade my router to respect my property lines, but I've yet to find a really effective way of communicating my desires to it on that front.

:(
Hmmmm...

Maybe encase your home in a Faraday cage?
;)
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.