(CNN) – If you're a Neiman Marcus shopper, you could be the victim of hackers.
The high-end retailer is reporter more than a million customers were impacted by a security breach.
The breach lasted more than three months.
The company says malicious software scooped up customer credit and debit card information between July 16 and Oct. 30.
Visa, Mastercard and Discover reported 2,400 cards were used by thieves.
Neiman Marcus says it first learned of the breach in December and verified it in January.
The breach did not include customer social security numbers or pin numbers associated with debit cards.
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