https://www.bleepingcomputer.com/news/security/maze-ransomware-adds-ragnar-locker-to-its-extortion-cartel/

A second ransomware gang has partnered with Maze Ransomware to use their data leak platform to extort victims whose unencrypted files were stolen.

Before encrypting a victim's network, most network-targeting ransomware operations will steal a victim's unencrypted files. These files are then used as leverage by threatening to release them publicly on data leak sites if a ransom is not paid.