Hopefully either Barclays and their customers will solve all the security problems before it gets to all the other banks or Barclays will loose lots of money and/or customers and some of the other banks will realise that it isn't such a good idea after all.
Alternatively perhaps an RF shielded wallet would help?
Gareth.
Apparently they're already on sale - I can't remember where, but I saw one recently.
You're right!
Made by Faraday?
Tim.
The MIFARE access protocol is designed to find and address a single card even if multiple ones are presented. Maybe it isn't used like that in practice, but the cards should certainly obey that protocol.
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