Neiman Marcus Group Ltd., the luxury department store operator, was sued by an Illinois woman over a data breach in which the retailer initially said more than 1 million customer credit cards may have been compromised. Hilary Remijas, a Neiman Marcus cardholder, sued the Dallas-based company yesterday in federal court in Chicago. She’s seeking to proceed on behalf of anyone who made a debit or credit-card purchase at the store from July 16 to Oct. 30.