Cybercriminals used the REvil ransomware to attack a law firm used by the likes of Lady Gaga, Drake and Madonna. The law firm, Grubman Shire Meiselas & Sacks, offers legal services to the entertainment and media industries. Hackers are now threatening to release the 756 gigabytes of stolen data in nine installments, unless they are paid an undisclosed amount of money. The threat of leaking stolen data, which researchers call double extortion, is not new for REvil, which is known to use RDP attacks and malspam.
Source: https://threatpost.com/revil-ransomware-attack-celeb-law-firm/155676/