The attack seemed to be malicious software on the POS systems themselves. So the data was likely stored out-of-band and sent to remote destinations owned by th

The attack seemed to be malicious software on the POS systems themselves. So the data was likely stored out-of-band and sent to remote destinations owned by the attackers. http://www.nbcnews.com/technology/massive-target-credit-card-breach-new-step-security-war-hackers-2D11778083 http://www.nbcnews.com/technology/massive-target-credit-card... If so, that's an incredibly sophisticated attack considering the scope of the breach.