Target announced that its data breach last year affected 70 million compared to the original number of 30 million.

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,” Target Chairman, President and CEO Gregg Steinhafel said. “I also want our guests to know that understanding and sharing the facts related to this incident is important to me and the entire Target team.”

The company is offering one year of free credit monitoring and identity theft protection to all guests who shopped at Target stores during the affected dates.

CNet reports that the company was forced to lower its fourth-quarter sales forecast, saying that it experienced "meaningfully weaker-than-expected sales" following the data-breach announcement.