This blog has featured several stories about payment card skimming devices designed to be placed over top of credit card terminals in self-checkout lanes at grocery stores and other retailers. Many readers have asked for more details about the electronics that power these so-called “overlay&rd...

This blog has featured several stories about payment card skimming devices designed to be placed over top of credit card terminals in self-checkout lanes at grocery stores and other retailers. Many readers have asked for more details about the electronics that power these so-called “overlay&rd...