Best Buy shoppers may have had their payment information hacked, as the company becomes the latest to report its exposure in a data breach that occurred last year.

The electronics retailer says that [24]7.ai , a company that provides the technology backing its chat services, was hacked between Sept. 27 and Oct. 12, potentially jeopardizing the personal payment details of “a number of Best Buy customers.’’

Sears and Delta Air Lines have also said that thousands of their customers may have been similarly exposed because of [24]7.ai's data breach.

Best Buy said in a statement that “as best we can tell, only a small fraction of our overall online customer population could have been caught up in this . . . incident whether or not they used the chat function.’’

The retailer says it will reach out to customers who were impacted, and they will not be held responsible for any fraudulent charges.