it. >> all right. target says that a encryption key is needed for those encryption numbers. the card wasn't stolen because it's held bien independent processor. >> you know, it's so interesting, alexandra, it really seems that target was also a victim, let's be clear about this. they were hacked into, they've had their information stolen as well. they've got security measures in place. i'm sure they're re-evaluating their security measures. it's interesting that they can say the numbers were stolen but they're encrypted. then you hear the expert saying, yeah, but there's only 10,000 combinations so they might be able to figure that out. shoppers, are they concerned or are they getting new cards which seems the logical thing to do? >> reporter: right, something like this always raises big