Always strive to learn something useful. --Sophocles

The basic symptoms are like the Target et al hacks of late, but the curious part is that most of the JJ stores are independent they largely use the same point of sale system. So again, it's an breech upstream of the actual merchant.

http://krebsonsecurity.com/2014/07/sandwich-chain-jimmy-johns-investigating-breach-claims/