DETROIT -- More than 100 Michigan Wendy's locations have been hit by a credit card breach.

The breach affects customers between Dec. 2, 2015 and June of this year spanning nearly 50 different cities.

To search the database of impacted stores, click here.

"We are committed to protecting our customers and keeping them informed. We sincerely apologize to anyone who has been inconvenienced as a result of these highly sophisticated, criminal cyberattacks involving some Wendy's restaurants," Todd Penegor, Wendy's president, said in a statement. "We have conducted a rigorous investigation to understand what has occurred and apply those learnings to further strengthen our data security measures."

To contact Wendy's hotline, call 866-779-0485. Wendy's reports it has worked with investigators to disable the malware across each franchise where it was discovered.

"The investigation has confirmed that criminals used malware believed to have been effectively deployed on some Wendy's franchisee systems starting in late fall 2015," a news release from the company reads. "The Company believes the criminal cyberattacks resulted from service providers' remote access credentials being compromised, allowing access - and the ability to deploy malware - to some franchisees' point-of-sale systems."

Affected Wendy's customers can receive a free year of fraud consultation and identity restoration services, Patch.com reports.