Victims of Target Credit Breach Threaten Lawsuits

One suit alleges the retailer failed to implement and maintain reasonable security procedures.
3:00 | 12/23/13

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Transcript for Victims of Target Credit Breach Threaten Lawsuits
This target situation, the credit card hacking keeps going. H the fallout continues. Good morning. The giant retailer under mass i have -- masive fire this morning. 40 million customers may be affected. Lawsuits are being filed. Linzie janis is following it all. Reporter: The millions of stolen credit card numbers are flooding the black market. This morning, angry shoppers lashing out at target, threatening class-action lawsuits against the retailer, including one filed in portland, oregon, alleging the store failed to implement and maintain reasonable security proceedures. Nationwide, 40 million customers may have been affected between november 27th and december 15th. Customers like tom white, whose credit card company alerted him. They noticed charges outside of the area, I guess. Reporter: But white has his card. His bank wouldn't confirm if the fraud was connected to the target breach. He says he shopped at the store twice in that 19-day window. Pay attention to your statements. If something doesn't look right, don't waste time, start disputing it. Reporter: Chase opened up a third of its branches to issue new cards. On friday, target's ceo issuing this video statement to customers frustrated by long wait times to get through to its call center. It's unacceptable what guests are experiencing. Reporter: It's unclear whether the chain's offer of 10% off all purchases over the weekend was enough to entice weary customers back to the stores. The u.S. Is the top target. We're still using cards that rely on magnetic strips that are relatively easy to copy. Other countries have upgraded to cards like this one that has a digital chip. This card, this is one of mine from the uk where I used to live. It requires the use of a pin. Nobody wants to foot the bill here in this country. When they do, things will be safer. Any move toward that? I imagine this will spark that conversation once again. It's amazing it wept on for almost three weeks. Thank you, linzie. Now to the mad rush to stores for last-minute holiday shoppers. It's getting ugly out there.

This transcript has been automatically generated and may not be 100% accurate.

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