"Target says that about 40 million credit and debit card accounts may have been affected by a data breach that occurred just as the holiday shopping season shifted into high gear."
"The chain said that customers who made purchases using their cards at its U.S. stores between Nov. 27 and Dec. 15 may have been exposed."
"Target Corp. advised customers who suspect there has been unauthorized activity on their cards should call them at 866-852-8680."
"Target’s announcement came one day after a security blogger, Brian Krebs, first reported the breach."
NY Post, NY Times