I've never heard of fast-food chains being ransomed until today. Domino's Pizza France and Belgium were victims of a cyber attack earlier last week. What was stolen was not hot Italian pies, rather more than 600,000 accounts of private customer information.

The hackers, who call themselves Rex Mundi, posted on a text-hosting site claiming that they were able to steal the private data. This includes the full names of Domino's customers including their addresses, email, passwords and delivery instructions. They even claim to have each customer's favorite pizza toppings, reports The Guardian.

The hackers demanded that the pizza chain pay them a sum of €30,000 ($40, 700 US) or they'll release the entirety of the stolen customer data, posting a small piece of customer information to back up their claims. Along with that information they posted on Twitter:

“If you're a @dominos_pizzafr customer, u may want to know that we have offered Domino's not to publish your data in exchange for €30,000.”

Domino's officially responded that they will not submit to the demands of the cyber thieves and the Rex Mundi account has since been suspended. However, it's not yet known if the hackers fully intend to release customer information or were simply bluffing.