In an interesting new article on Wired.com today, two major breaches to Walmart's data network are disclosed. Whilst the attacks were dated back in 2005 & 2006 it is interesting to read that such giants as Walmart struggled to keep pace with the changing face of network security along with the smaller folks out there. It is reported that Walmart have since overhauled their security from the ground up (wouldn't you?) but it does give you pause to think how often data is stolen and just how exposed you are each time you swipe that credit card....