https://www.bleepingcomputer.com/news/security/europol-dismantles-one-of-the-internets-oldest-hacker-groups/

Europol, French, UK, and Thai police arrested eight people they suspect to have been involved or to have been part of a notorious hacker group known as Rex Mundi (Latin for "King of the World").

The group has been active since at least 2012. Its modus operandi revolved around hacking into companies' networks, stealing private information, and later contacting the victims to request the payment of a ransom fee.