Lessons Learned from a Data Breach
I recently read "Heartland Payment Systems: Lessons Learned from a Data Breach." (PDF) This is a discussion paper published by the Philadephia branch of the US Federal Reserve. Bob Carr, the CEO of Heartland Payment Systems, was invited by the Fed's Payment Cards Center to give a talk about the lessons that Heartland had learned from the data breach that affected their systems back in 2008 to 2009.
Carr talked about the relative strengths and weaknesses of various approaches to protecting sensitive credit card information and how Heartland decided to use end-to-end encryption to ensure that their systems couldn't suffer another breach like they had just been through. If you're interested in protecting credit card data, you'll probably find Carr's discussion of the various technologies interesting.