I read an article in the news today called "Police caution that credit-card chips make it easier for thieves".
Apparently, because the chips are transmitting a radio signal (an RFID), this signal can be picked up from a device on a thieves cellphone or laptop and used to steal your account information or personal details.
The story claims that you can enhance your protection by getting "card-shielding sleeves or wallets".
What are the the materials that make this possible and other options in regards to RFID shielding/protection for my cards?
I found some wallet makers that provide this protection, but how do I choose...
Can I just wrap my wallet in tinfoil (shiny side out or in)?