Hardware Hacking: "Pro-Grade Point-of-Sale Skimmer"

http://krebsonsecurity.com/2013/02/pro-grade-point-of-sale-skimmer/

I wonder if this is actually how Barnes & Noble was hacked? 

http://cliffsesportcorner.blogspot.com/2012/10/security-hacking-thieves-rig-barnes.html

And for whatever reasons they don't want to disclose the connection?

Comments on Brian Krebs post are well worth reading as well, I learned BT is legit for POS (Point of Sale) devices transmitting Credit Card data as long as it is encrypted.

Link (PDF) https://www.pcisecuritystandards.org/pdfs/PCI_DSS_Wireless_Guideline_with_WiFi_and_Bluetooth_082211.pdf

Really well done work, wish I could solder as well as whoever did that!