[liberationtech] Cell phone tracking

[ilf]

Seth David Schoen:
> it can also be used in tracking but the tracking works well by 
> triangulation.  The tracking of Malte Spitz
> http://www.zeit.de/digital/datenschutz/2011-03/data-protection-malte-spitz
> used this process.

Maltes stunt didn't even use triangulation, but only the "normal" 
network operator data, which Cell-ID was used at which point-in-time, 
and there was always only one. Every mobile phone network operator logs 
this, and the data retention EU directive and national laws mandate 
storing this for at least six months.

The raw data for this should be here, but I can't check for lack of a 
Google account: 
https://spreadsheets.google.com/ccc?key=0An0YnoiCbFHGdGp3WnJkbE4xWTdDTVV0ZDlQeWZmSXc&hl=en_GB&authkey=COCjw-kG

> I'm curious whether people in some countries have had success using 
> wifi-only phones, including to make and receive calls by VoIP.

This has just been done for wifi-only, too: 
http://apps.opendatacity.de/relog/

-- 
ilf

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