[Discuss] GPS feature in cellphones?

2014-06-05 Thread Oliver Holmes
Hi All! Thank you for reading and answering my post in advance. My question is old voice flip phones could only be traced to the transmitting tower. But I understand now that GPS is built in and is active whether you activate it or not. So there is the potential to track you within three meters

Re: [Discuss] GPS feature in cellphones?

2014-06-05 Thread Matt Shields
Having worked for McCaw Cellular aka Cellular One aka AT&T Wireless Services, I remember them doing this in the 90's. Even if your cell phone doesn't have GPS capabilities, the phone companies could track you using what's called triangulation. It's not as accurate as GPS, but it's close enough.

Re: [Discuss] GPS feature in cellphones?

2014-06-05 Thread Bill Bogstad
On Thu, Jun 5, 2014 at 9:25 AM, Oliver Holmes wrote: > Hi All! > > Thank you for reading and answering my post in advance. > > My question is old voice flip phones could only be traced to the transmitting > tower. But I understand now that GPS is built in and is active whether you > activate it

Re: [Discuss] GPS feature in cellphones?

2014-06-05 Thread David N. Blank-Edelman
On Jun 5, 2014, at 11:29 AM, Bill Bogstad wrote: > So, unless you have a REALLY old phone, chances are very high that it > has a GPS chipset that is remotely queryable. And even then... https://www.eff.org/deeplinks/2012/10/stingrays-biggest-unknown-technological-threat-cell-phone-privacy

Re: [Discuss] GPS feature in cellphones?

2014-06-05 Thread Richard Pieri
Oliver Holmes wrote: > My question is old voice flip phones could only be traced to the > transmitting tower. But I understand now that GPS is built in and is > active whether you activate it or not. So there is the potential to > track you within three meters. Is this so? I don't know about the t

Re: [Discuss] GPS feature in cellphones?

2014-06-06 Thread Jerry Feldman
Actually triangulation is used in GPS also. It is a very old tried and true method. On 06/05/2014 09:59 AM, Matt Shields wrote: > Having worked for McCaw Cellular aka Cellular One aka AT&T Wireless > Services, I remember them doing this in the 90's. Even if your cell phone > doesn't have GPS cap

Re: [Discuss] GPS feature in cellphones?

2014-06-06 Thread Bill Bogstad
On Fri, Jun 6, 2014 at 7:00 AM, Jerry Feldman wrote: > Actually triangulation is used in GPS also. It is a very old tried and > true method. Very true. Some difference are: 1. GPS is triangulation from satellites rather then cell towers 2. GPS was designed explicitly to provide location inform

Re: [Discuss] GPS feature in cellphones?

2014-06-06 Thread Bill Ricker
On Fri, Jun 6, 2014 at 11:56 AM, Bill Bogstad wrote: > 4. GPS can be done passively by anyone anywhere, while cell tower > triangulation requires endpoints that transmit (and as a result > identify themselves.) > I think that #4 is particularly interesting. > ​Depends what you mean by "passive".

Re: [Discuss] GPS feature in cellphones?

2014-06-06 Thread Rich Braun
Rich Pieri wrote: > A power off state does not disable this "feature" on smart > phones and some feature phones. Either remove the battery > or stuff it in a static bag (Faraday cage). Eyebrows raised...that statement doesn't sound right. I expect that a device I own won't drain its battery if I

Re: [Discuss] GPS feature in cellphones?

2014-06-06 Thread Richard Pieri
Rich Braun wrote: > Eyebrows raised...that statement doesn't sound right. I expect that a device > I own won't drain its battery if I turn it off. GPS radio receivers draw > quite a bit of power, and 3G/4G transmitters probably draw even more. One might expect quite a bit that isn't true. Off is

Re: [Discuss] GPS feature in cellphones?

2014-06-06 Thread Bill Ricker
On Fri, Jun 6, 2014 at 3:50 PM, Richard Pieri wrote: > It's because > they're not really off. > ​If it's off enough to make an airline happy, it's not reporting anything, even *if* it's passively tracking​ -- Bill Ricker bill.n1...@gmail.com https://www.linkedin.com/in/n1vux __

Re: [Discuss] GPS feature in cellphones?

2014-06-06 Thread John Hall
The 3g / 4g transmitters and receivers operate through the same ping that allows you to get a phone connection. If you think soimeone might be tracking you to improve thier services and sales of them then you'd be right. If you have an android phone or a phone with google installed go to: https://w

Re: [Discuss] GPS feature in cellphones?

2014-06-06 Thread Richard Pieri
Bill Ricker wrote: > ​If it's off enough to make an airline happy, it's not reporting > anything, even *if* it's passively tracking​ Are you sure? I wouldn't be: http://www.washingtonpost.com/world/national-security/nsa-growth-fueled-by-need-to-target-terrorists/2013/07/21/24c93cf4-f0b1-11e2-bed

Re: [Discuss] GPS feature in cellphones?

2014-06-07 Thread Rich Braun
Rich Pieri wrote: > A power off state does not disable this "feature" on smart > phones and some feature phones. > ...[and followed up with] > Off isn't really off. It's > a very low power state same as every personal computer and TV set made > since manufacturers did away with physical power swit

Re: [Discuss] GPS feature in cellphones?

2014-06-07 Thread Richard Pieri
Rich Braun wrote: > But anyone > who has ever fiddled with a handheld GPS or wifi-enabled device knows how much > of a power-suck those technologies are. Just because Ed Snowden found a > document that claims otherwise doesn't mean it's true. You're assuming that the GPS receiver in the device ha

Re: [Discuss] GPS feature in cellphones?

2014-06-07 Thread Tom Metro
Rich Braun wrote: > I'm not buying the NSA's published FUD on this issue. Me neither. This is also a knowable answer that any high-school level electronics student can answer: 1. Monitor the current draw from the device's battery when the unit is powered off. If you never see more an micro amps

Re: [Discuss] GPS feature in cellphones?

2014-06-07 Thread Richard Pieri
Tom Metro wrote: > My guess is that the origin of this FUD comes from phones that have been > hacked by a government agency. One can imagine how it would be easy to > modify a phone's software such that the power button merely fakes a shut > down. Meanwhile it stays running, tracking, and sending a

Re: [Discuss] GPS feature in cellphones?

2014-07-10 Thread Tom Metro
Oliver Holmes wrote: > ...I understand now that GPS is built in and is > active whether you activate it or not. So there is the potential to > track you within three meters. Is this so? http://arstechnica.com/business/2014/07/9-out-of-10-wireless-911-calls-in-dc-dont-provide-accurate-location-info

Re: [Discuss] GPS feature in cellphones?

2014-07-10 Thread Richard Pieri
On 7/10/2014 7:33 PM, Tom Metro wrote: > The bad results are largely because "[t]he location technology > currently used by most wireless carriers (called A-GPS) depends on a > direct line-of-sight to satellites, so it often fails in indoor > locations or dense urban areas like the District