There’s been another security breach at a U.S. retailer, this time its Kmart.

Kmart parent company Sears Holding, says the data breach began in early September.

The company was able to quickly remove the malware but Kmart believes certain debt and credit card information was compromised.

The company couldn’t disclose how many cards were affected.

The data theft at Kmart is the latest in a string of breaches that have hit several big retailers, including Target and Home Depot.