The hacker group behind last week’s REvil (Sodinokibi) ransomware attack on New York-based law firm Grubman Shire Meiselas & Sacks is now demanding $42 million and threatening to release controversial information on U.S. President Donald Trump. Last week, the hacker group infiltrated the law firm’s network and stole personal data and contractual information belonging to celebrities like Elton John, Madonna, Nicki Minaj, Bruce Springsteen, Mariah Carey, and Jessica Simpson. The massive breach took place after the hacker group used the REvil ransomware to infiltrate the law firm’s network and stole up to 756GB of data including contracts, nondisclosure agreements, phone numbers, email addresses, music rights, and personal correspondence of a large number of well-known American celebrities. Researchers at ransomware-focussed cyber security firm Emsisoft told Variety that hackers behind the cyber-attack posted a few images on a dark web forum as proof of their exploit and are threatening to release 756GB of stolen data from Grubman Shire Meiselas & Sacks. Images posted by hackers on the forum included “a contract for Madonna’s 2019-20 “Madame X” tour with Live Nation,” Variety revealed.