Target's massive credit card data breach is more than twice the size of the retailer originally reported. The company now says its investigation into the incident shows up to 70 million more customers are at risk. Target also learned the stolen data includes more than credit and debit card information. Names, mailing addresses, phone numbers and email addresses were also exposed during the peak of the holiday shopping season. It looks like Target may not be the only hacking victim. Reports indicate that upscale retailer Neiman Marcus had their database of credit card customers hacked in December.