Search Mailing List Archives


Limit search to: Subject & Body Subject Author
Sort by: Reverse Sort
Limit to: All This Week Last Week This Month Last Month
Select Date Range     through    

[liberationtech] If we want to be anonymous in #azerbaijan we take batteries out of our cellphones

Eleanor Saitta ella at dymaxion.org
Mon Jun 18 10:40:10 PDT 2012


On 2012.06.18 13.29, Parker Higgins wrote:
> On 6/18/12 8:36 AM, Yosem Companys wrote:
>> Hi Liberationtech folks, is this always the case? I've heard cases
>> where people can still be tracked whether they have batteries in
>> their cell phones or not...
> 
> I've spoken with mobile security researchers who have given me the
> impression that this theory hasn't been tested very much. It's
> theoretically possible that some phones could be recording or
> transmitting without the main battery, but the equipment that would be
> required to test is prohibitively expensive and you'd have a hard time
> demonstrating anything but an evidence of absence.

Unless there's a specific secondary battery powering a transmitter, it
is improbable in the extreme that an unpowered passive device can have
its location tracked at a distance of more than, say, a hundred meters,
and any tracking at all is extremely unlikely.  Cellphones don't work
that way, and physics says no, basically.

Now, *people* are very easy to tail, when you have a human doing the
work.  That's a different story.  There are almost certainly many more
pressing issues to worry about when it comes to locational privacy than
a battery-less phone.

E.

-- 
Ideas are my favorite toys.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 228 bytes
Desc: OpenPGP digital signature
URL: <http://mailman.stanford.edu/pipermail/liberationtech/attachments/20120618/d6b2cd31/attachment.asc>


More information about the liberationtech mailing list