Big box department store chain Kmart informed customers on Wednesday that cybercriminals may have stolen their credit or debit card data after installing malware on the company’s payment processing systems.
Kmart, a subsidiary of Sears Holdings, has not provided any information on which stores are affected and for how long hackers had access to its systems. The retailer operates more than 700 stores, but blogger Brian Krebs learned from his sources in the financial industry that the breach does not appear to impact all locations.
