The Latest in IT Security

By Beth Pinsker and Mitch Lipka NEW YORK (Reuters) – The number of people affected by Target’s data breach during the holiday season is now expected to be least 70 million, up from the company’s original estimate of 40 million. Late last year, Target reported that thieves stole cardholder names, card numbers and three-digit security codes between November 27 and December 15, and that information could be used at any point to commit fraud. “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’s chief executive, Gregg Steinhafel, said in a statement. If you shopped at Target during that time period — or at other times — and are worried about your accounts, here are answers from experts on the most frequent questions: Q: How did the hackers get phone numbers, street and email addresses?