Contactless bank cards

[Marcus Williamson]

On Mon, 15 Nov 2010 16:35:02 +0000, you wrote:

>The banks aren't going to give up on this. Barclays has just sent one to my son, after he lost his old, contactful one. He didn't ask for a contactless one, naturally.

What's the technology behind it? A type of RFID? If so, what's to stop someone
reading the card without your son knowing and/or making small transactions without
his knowledge?

regards
Marcus