Customers of restaurants using the HungerRush point-of-sale (POS) platform say they received emails from a threat actor attempting to extort the company, warning that restaurant and customer data could be exposed if HungerRush fails to respond. [...]

https://www.bleepingcomputer.com/news/security/hacker-mass-mails-hungerrush-extortion-emails-to-restaurant-patrons/