Target announced Friday that the massive data hack last month took more than just the credit and debit card information of 40 million customers.
Now the retail giant says the personal information, including names, phone numbers and postal and e-mail addresses, of up to 70 million customers was also leaked.
Not everyone affected by the card breach will also be affected by the personal information breach. Officials say there is likely some overlap between the two groups.
"I know that it is frustrating for our guests to learn that this information was taken and we are truly sorry they are having to endure this," CEO Gregg Steinhafel said in a statement.
Target tried to restore consumer confidence in December by offering 15 percent off the weekend after the breach.
Target’s stock is down more than one percent Friday morning. They expect fourth-quarter sales at stores open longer than a year will be down about 2.5 percent.