SuperValu, Albertsons, Acme Markets, Jewel-Osco, Shaw’s and Star Markets brands in about 24 states were affected by the data breach. The breach may have compromised payment card data of customers at a number of grocery store locations in more than 18 states. The companies did not reveal how the data was stolen, but given the recent outbreak of point-of-sale (POS) hacks at the third-largest U.S. retailer Target and other major retailers such as Neiman Marcus Michaels Store would be a likely attack vector.
Source: https://thehackernews.com/2014/08/grocery-stores-supervalu-and-albertsons_17.html