LOS ANGELES (AP) — Card data of Albertsons shoppers may be at risk in another hack.

The company said that in late August or early September, malicious software was installed on networks that process credit and debit card transactions at some of their stores.

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Albertsons said the malware may have captured data including account numbers, card expiration dates and the names of cardholders at stores in more than a dozen states.

The breach could affect Albertsons stores in California, Idaho, Montana, Nevada, North Dakota, Oregon, Utah, Washington and Wyoming.

Supervalu, a grocery chain also hit by the breach, sold Albertsons to Cerberus Capital Management in 2013, but it still provides information technology services for those stores.

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A data breach also occurred in August, but officials said the two incidents are separate.

Albertons said Monday that they are still investigating that incident and don’t know if cardholder data was taken.

The latest breach follows big hacks that affected millions of customers at Home Depot, Target and other retailers over the past year.

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