Contactless bank cards

[Roland Perry]

In article 
<B904FFC8-7ADB-478E-8430-C66FBA4E9CA6 at sourcetagged.ian.co.uk>, Ian Mason 
<ukcrypto at sourcetagged.ian.co.uk> writes

>However, even in circular form it would easily fit the "Entrance £5" 
>scenario posited by Nick (I think) where it could be concealed in a 
>premise's entrance, or disguised as one of the loop antenna used in 
>shop entrances for theft prevention, which we all walk past and  ignore 
>every day.

But will be discovered as soon as one person challenges their credit 
card bill. It's not the kind of thing a rogue minimum wage employee is 
going to set up.

>In practice, I think this is probably a greater  threat than purse 
>surfing or whatever moniker we come up with for it.

Purse surfing is a good name.
-- 
Roland Perry