Raleigh Jimmy John's among those affected by data breach

The Illinois-based company said it learned of a possible security incident on July 30 and hired third-party experts to assist with its investigation.

"The customers' credit and debit card data was compromised after an intruder stole log-in credentials from Jimmy John’s point-of-sale vendor and used these stolen credentials to remotely access the point-of-sale systems at some corporate and franchised locations," the company said in a statement.

The breach occurred between June 16 and Sept. 5.

Representatives said that the cards impacted were those swiped at stores and not those entered manually or online. Customer information entered online remained secure.

Five North Carolina locations were among the more than 200 stores affected:

"The security compromise has been contained, and customers can use their credit and debit cards securely at Jimmy John’s stores," the company stated. 

To help prevent the issue in the future, the company said it is "installing encrypted swipe machines, implementing system enhancements and reviewing its policies and procedures for its third party vendors."

Jimmy John's is offering identity protection services to impacted customers. Contact 855-398-6442 for more information. Customers should also monitor their credit and debit card accounts and contact their banks if they notice anything suspicious.