Cybersecurity

Neiman Marcus to Target Data Breaches Imperil U.S. Retailers

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Neiman Marcus Group Ltd. said yesterday that some unauthorized purchases may have been made with customer cards, the second retailer after Target Corp. to be struck by hackers during the important holiday season.

Credit-card processors alerted Neiman Marcus to the breach in mid-December and the Dallas-based luxury chain is working with federal authorities and investigating the matter, Ginger Reeder, vice president of corporate communications, said yesterday in an e-mail statement. Reeder declined today to elaborate. The Wall Street Journal, citing unidentified people familiar with the incident, said fewer than 1 million cards were compromised.