[LINK] smartphone privacy problems

[Roger Clarke]

At 20:30 +1100 27/1/11, Stilgherrian wrote:
>A mobile phone, smartphone or not, can physically be anywhere on the 
>global cellphone network. It must report its location and some 
>unique identifier so that calls and text messages can be routed to 
>it. I suspect it'd be a challenge to have a phone that both did and 
>did not have a unique identifier.

An IP-address needs to be unique within the IP-address-space.

An IP-address does *not* have to be, nor to contain, nor to imply, 
the (or any) identifier of the device that's currently using that 
IP-address.

Stil, I assume you're stirring, because if not you've gone to sleep  (:-)}


-- 
Roger Clarke                                 http://www.rogerclarke.com/

Xamax Consultancy Pty Ltd      78 Sidaway St, Chapman ACT 2611 AUSTRALIA
                    Tel: +61 2 6288 1472, and 6288 6916
mailto:Roger.Clarke at xamax.com.au                http://www.xamax.com.au/

Visiting Professor in the Cyberspace Law & Policy Centre      Uni of NSW
Visiting Professor in Computer Science    Australian National University