After being notified of “unusual activity” on credit cards by its credit card processor, Sonic Drive In has confirmed that it is working with forensic experts and law enforcement on a potential credit card breach. It has not been reported of whether or not debit cards may be involved as well.

Sonic operates approximately 3,500 restaurants in 44 states and it has stated that it is “working to understand the nature and scope of this issue.”

These compromises of credit cards being used at food chains is a reminder that paying cash for small purchases is a good practice for one’s privacy and security hygiene and protection.

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