The Europol announced that several French nationals were arrested in the past year on suspicion of being involved with notorious hacker group known as Rex Mundi (King of the World) The group has been active since at least 2012 it hacked into the systems of several organizations worldwide and attempted to blackmail them. The list of the victims is long and includes AmeriCash Advance, Webassur, Drake International, Buy Way, Hoststar, Websolutions.it, and the Swiss bank Banque Cantonale de Geneve (BCGE)”]
Source: https://securityaffairs.co/wordpress/73584/cyber-crime/rex-mundi-dismantled.html