The U.S.' fifth largest fast-food chain says it's investigating "unusual activity involving payment cards."
Krebs On Security reports that Wendy's is looking into possible credit card breaches that began in late 2015. The restaurant chain says it started receiving reports about it this month.
The extent of the breach is unknown. A Wendy's spokesperson told the outlet that "it's not appropriate just yet to speculate," though it appears to have happened at multiple locations.
News of the breach comes after a stronger push from Wendy's to compete with rivals like McDonald's by announcing a four-for-$4 campaign in October. Burger King announced a five-for-$4 deal shortly afterward.
>>Wendy's and Burger King got into a fight on Twitter
Industry experts say fourth-quarter financial outlooks for Wendy's will likely be positive. Analysts project quarterly earnings of 11 cents per share. The company's fourth-quarter results aren't expected until February.
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