[olug] [OT] bluetooth study privacy

[T M]

http://www.schneier.com/blog/archives/2006/12/tracking_people.html

"I ran an experiment at my house with a linux laptop and a class i
bluetooth node, scanning and logging every discoverable bluetooth
device that came in range. with a 30s scan cycle, it could catch
everyone walking past. As I live on a main road in a european city, I
collected a lot of data. Especially as I ran the experiment for a
year.

I havent yet done a full analysis. But I will say that some people go
past my front door at ten minutes to nine, every weekday, plus or
minus one minute. Predictably. And they publish that fact to all
bluetooth nodes nearby.

Posted by: Steve Loughran at December 12, 2006 03:52 PM"