eWeek updates the Hannaford data breach story, explaining that Malware: A generic term for a software that is designed to disable or otherwise damage computers, networks and computer systems LookingGlass Cyber (n) - another type of cold that can destroy a computer by latching on to destroy other programs. was found to be present on the Web servers located in every grocery store owned by the chain. While the source of the malware remains unknown, the data breach exemplifies the damage that purpose-built malware can inflict on its target.
This malware used in the Hannaford attack apparently captured Track 2 credit card information as part of the authorization process. With relative ease, criminals in possession of Track 2 data can create counterfeit plastic credit cards embedded with real customer data in the magnetic strip of the card for use in “card present” transactions. So in this case, the online malware attack vector was likely designed to facilitate offline fraudulent transactions.