From jana katsuyama. Live at a target store in fremont after asking a security expert how a massive breach like this could have happened. Reporter that Silicon Valley computer expert outlined some possibilities. I did go into the store, talked to the manager, and also contacted the corporate offices in minneapolis. So far, target has issued no explanation. It appears thieves might have hit their mark. Potentially stealing target customers credit card information. A worry for many shoppers tonight. I come at least four or five times. And i always buy with american express. Kind of shocked that target would have this. Reporter target says its investigating. A security expert said the breach involved nearly all of target stores nationwide. I think theres potentially three options of what happened. Reporter we asked a Silicon Valley security expert to explain the possible breach. He says it could have been a skimming device, physically added to a credit card reader. More likely though, he
Expert how a massive breach like this could have happened. Reporter that Silicon Valley computer expert outlined some possibilities. I did go into the store, talked to the manager, and also contacted the corporate offices in minneapolis. So far, target has issued no explanation. It appears thieves might have hit their mark. Potentially stealing target customers credit card information. A worry for many shoppers tonight. I come at least four or five times. And i always buy with American Express. Kind of shocked that target would have this. Reporter target says its investigating. A security expert said the breach involved nearly all of target stores nationwide. I think theres potentially three options of what happened. Reporter we asked a Silicon Valley security expert to explain the possible breach. He says it could have been a skimming device, physically added to a credit card reader. More likely though, he says it could be computer hackers. Theyre starting to put malware on point of s