Home Depot said on Tuesday that it was investigating a report that customer credit and debit card data was stolen from its systems and put up for sale online.

The retailer issued a statement after Brian Krebs, an independent security reporter, said that multiple banks had pointed to Home Depot as the potential source of a large data breach. The company said it was working with law enforcement authorities and banks on the matter.

“Protecting our customers’ information is something we take extremely seriously, and we are aggressively gathering facts at this point while working to protect customers,” said Paula Drake, a company spokeswoman. “If we confirm that a breach has occurred, we will make sure customers are notified immediately.”

If a breach is confirmed, Home Depot will be the latest target in a recent string of hacking attacks against major companies, after Target, Neiman Marcus, Michaels, Sally Beauty, P. F. Chang’s and UPS. Those companies said criminals had installed malicious software on their systems that siphoned customers’ payment information. The hackers who broke into the systems are believed to belong to the same crime ring in Eastern Europe.