ATLANTA — Chick-fil-A is looking into the possibility of a breach of credit cards used at some of its locations, according to an online site that broke the story about Home Depot’s hack.

Brian Krebs, who runs the website KrebsonSecurity.com, said financial institutions have traced credit card fraud to accounts used at Chick-fil-A stores around the nation. Krebs said he first heard about the possible hack in November, but the reports were spotty.

Below is a response Krebs reported he received from Chick-fil-A:

“Chick-fil-A recently received reports of potential unusual activity involving payment cards used at a few of our restaurants. We take our obligation to protect customer information seriously, and we are working with leading IT security firms, law enforcement and our payment industry contacts to determine all of the facts.”

“We want to assure our customers we are working hard to investigate these events and will share additional facts as we are able to do so.”