On Sat, 9 Sep 2017 19:50:54 -0000 (UTC), Anna Noyd-Dryver
wrote:

Graeme Wall wrote:
On 09/09/2017 14:22, Anna Noyd-Dryver wrote:
Graeme Wall wrote:
On 09/09/2017 10:37, Someone Somewhere wrote:


I'm not sure of the relevant legislation but presumably the only way to
avoid this is that each entity having such a system has to have a
different algorithm (or at least key) for anonymising the MAC data so
each data set remains siloised (but would the supplier of the system
still be able to join the different datasets?)


Shopping malls have been doing a similar thing to send you "targetted
adverts" as you approach various shops.


'Send you' by what means?

SMS initially.


That'd be tricky to get from a MAC address, surely? Though as per my other
reply, other mechanisms may exist.


Anna Noyd-Dryver


Gee, there are more 'Shirleys' in this thread than that non-alcoholic
drink ordered in a bar.

Must be some sort of Template.