On Wednesday, a data breach at drive-in food chain Sonic jeopardized the security of credit cards from up to 5 million customers, whose accounts are being “peddled in shadowy underground cybercrime stores,” website Krebs on Security informed.
Initial rumors of a data breach occurred last week when multiple financial institutions began noticing a suspicious pattern of transactions using cards that were previously used at Sonic, the website noted. The company’s credit card processor confirmed the breach of Sonic’s cash registers, known today as point-of-sale terminals, but it remains uncertain whether it has targeted a small portion of these drive-ins or the entire 3,600 locations across 45 U.S. states.
“We are working to understand the nature and scope of this issue, as we know how important this is to our guests,” Sonic said in a statement. “We immediately engaged third-party forensic experts and law enforcement when we heard from our processor. While law enforcement limits the information we can share, we will communicate additional information as we’re able.”
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