Wendy's is investigating "unusual activity" related to cards used in some of its restaurants.
The fast food chain launched an investigation after being alerted this month by the payments industry to possible fraudulent charges being made "elsewhere after payment cards were legitimately used at some restaurants," said spokesman Bob Bertini.
Wendy's is working with cybersecurity experts, payment industry contacts and law enforcement to look into the possible fraud. It's unclear how many cards or restaurant locations may have been affected.
"Until this investigation is completed, it is difficult to determine with certainty the nature or scope of any potential incident," Bertini said.
The possible security breach was first reported Wednesday by Krebs on Security.
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