A massive data breach at the Sonic Drive-In fast-food chain could reportedly have affected millions of customers. Brian Krebs, who runs the cyber security website KrebsOnSecurity, first detected the possibility of such a data breach and then reported it to Sonic. Krebs also notes that the batch of five million cards at Jokers Stash might have for sale cards not just of Sonic customers, but of cards that have perhaps been stolen from other eatery brands compromised by the same hackers.”]
Source: https://hackercombat.com/sonic-drive-in-suffers-massive-data-breach-impacted-millions/