Wendys logoIf you ate at Wendy’s in February of this year, you may want to check your credit card statements.

According to the Wall Street Journal, customer credit card numbers might have been stolen at over 1,000 Wendy’s locations throughout the United States. The number of affected customers is not known at this time. Customers who used their debit or credit cards in February of 2016 may be affected. Federal law enforcement and Wendy’s are working together, and the investigation is ongoing.