(Reuters) – U.S. supermarket chain Supervalu Inc is investigating a potential data breach that could have affected more than 1,000 of its stores, the Wall Street Journal reported on Thursday, citing people with knowledge of the matter. The data breach appears to have taken place in late June or early July and may be due to malicious software installed by hackers on the retailer’s point-of-sale network, the people told the Journal. Supervalu had 3,763 stores as of April, according to a regulatory filing. Supervalu was not immediately available for comment.
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