Motherboard reports that a group of hackers breached a law firm's servers containing case files related to the September 11 attacks. The the hackers supposedly sent an encrypted datafile to Motherboard, before publishing it on the web, and claim they will release the file's encryption keys if their ransom demands aren't met. "The Dark Lord" hacker group previously stole photos from plastic surgeons and leaked an entire season of Orange is the New Black. The FBI reportedly arrested several members of the group earlier this year, but apparently, they didn't find all of them. Interestingly, this hack is related to a breach that was quietly announced by Hiscox in April of 2018. In its announcement published on Pastebin, The Dark Overlord points to several different insurers and legal firms, claiming specifically that it hacked Hiscox Syndicates Ltd, Lloyds of London, and Silverstein Properties... "If you're one of the dozens of solicitor firms who was involved in the litigation, a politician who was involved in the case, a law enforcement agency who was involved in the investigations, a property management firm, an investment bank, a client of a client, a reference of a reference, a global insurer, or whoever else, you're welcome to contact our e-mail below and make a request to formally have your documents and materials withdrawn from any eventual public release of the materials. However, you'll be paying us," the group's post reads. As The Dark Overlord's announcement notes, the breach itself was previously reported in vague terms by a specialist legal publication, and Hiscox Group pointed Motherboard to the firm's own April 2018 announcement of a data breach.