02-05-2016, 11:38 AM
Here's a DIY method (aluminum foil and duct tape) to protect the radio frequency chips in your credit cards from scanner theft. This is apparently a thing now so take precaution.
http://www.rpi-polymath.com/ducttape/RFIDWallet.php
http://www.rpi-polymath.com/ducttape/RFIDWallet.php