Credit card chips can be duplicated

How do I protect or protect my broken card from thieves? (Block RFID transmitter)

I read an article on the news today called "Police Warn Credit Card Chips Make It Easier for Thieves".

Because the chips transmit a radio signal (an RFID), it appears that this signal can be picked up by a device on a thief's cell phone or laptop and used to steal your account information or personal information.

History claims that by getting "card protectors or wallets" you can improve your protection.

What materials enable this and other options in terms of RFID shielding / protecting my cards?

I've found quite a few wallet manufacturers that offer this protection, but how do I choose ...

Can I just wrap my wallet in aluminum foil (shiny side out or in)?

TO EDIT:
More articles:
http://www.cbc.ca/news/story/2010/05/31/f-rfid-credit-cards-security-concerns.html
http://www.cbc.ca/news/technology/story/2009/05/15/tech-090615-enhanced-drivers-licence-privacy-security-us-border-rfid.html

duffbeer703

You are not liable so who cares?

SaultDon

@ duffbeer703 I think my biggest concern is privacy and personal information. It's not like an email address where the password can easily be changed. I can't do that with my privacy.

SaultDon

@sharptooth That's exactly the answer I was looking for thanks. Interesting that you only need to cover the important parts of the chip on the card.

littleadv

The chips do not transmit anything unless they are in place very close (millimeters) to an RFID reader that induces them.

You can protect them by adding a barrier to keep the induction from working. There are several (very cheap / free, like this one) products for this, and many wallets have the protection features these days. Wrapping in foil might also help.

SaultDon

What about the message that says "high frequency identification chip cards"? What do you mean by high frequency?

littleadv

That's the name of the technology - RFID. You can read about it in detail on Wikipedia, the article is pretty well written there. Chips used in credit cards have no power source and only transmit information when induced.

f1StudentInUS

I think this makes it easier to do card skimmers

SaultDon

Also because the article states that the thief can "swipe" the card "without even touching your wallet" ... This also makes me think that it is transferring something.

f1StudentInUS

Onchip RFID devices cannot transmit anything of their own because they do not contain the energy for it. They only do this when "induced" by a tranciever that provides the energy.