Actually, every time you move from the footprint of one cell tower to another, the phone company *has* to know this, so they can know where to route incoming calls. So it is absolutely the case that your phone company knows where you are and where you've been. Here are a bunch of questions that I bet you don't know the answer to:
- do they keep that info? - for how long? - if a law-enforcement agency calls up and asks for it, unofficially, no warrant, do they cough it up? - if a divorce lawyer calls and asks, can he/she get it? I'm a lot more worried about telephone companies than I am about mobile-industry players like Apple. -Tim On Fri, Jun 3, 2011 at 12:29 PM, John Francis <[email protected]> wrote: > On Fri, Jun 03, 2011 at 01:27:58PM -0400, David Parsons wrote: >> All cell phones can be traced to the cell towers that they connect to >> by the wireless provider. Do you really think that Verizon or AT&T >> aren't keeping records of which cell towers your phone is talking to, >> and the time/date? > > No. But AFAIK thy don't (and, in fact, can't) do that if the phone isn't > transmitting - they don't know it is there. > > (Furthermore, getting that information from AT&T or Verizon is quite a > bit harder than simply downloading an unencrypted file from the phone.) > > One of the issues with the iPhone was that (according to some folks) it > keeps track of which towers it can see, even if the phone is switched off. > > The question I can't answer is whether turning off the phone disables all > wireless capability, or just the transmitter side. I'm pretty sure that > transmit is turned off - the FAA would insist on that - but a passive > receiver in standby mode isn't going to require a lot of power. > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
