https://consumerist.com/2017/09/26/millions-of-credit-card-numbers-may-have-been-stolen-in-sonic-drive-in-breach/

It’s a day of the week ending in “y,” which can only mean one thing: Another national company’s payment system has been compromised. This time, it’s the Sonic Drive-In fast food chain, where potentially millions of credit card numbers may have been stolen.

KrebsOnSecurity.com confirmed the breach with Sonic earlier today, after recently coming across a for-sale stash of around 5 million stolen credit card numbers. According to Krebs, a common link for some of these purloined credit card numbers was that they had recently been used to make purchases at Sonic.