A data breach at U.S. retailer Target will affect up to 70 million people, 30 million more than what the company first estimated in mid-December.
In addition to the credit and debit card data stolen from Target, thieves also took customer names, mailing addresses, phone numbers or email addresses, Target said in a statement released Friday.
Target found the additional affected customers and the additional information that was taken in its ongoing forensic investigation, the company said.
Target will attempt to contact those people affected by the breach in cases where it has a customer’s email address, the company said. Target will not ask customers for any personal information in those emails.
Target announced in mid-December that thieves had taken credit and debit card information between Nov. 27 and Dec. 15.