Hackers posted dozens of confidential documents on dark web
Includes Social Security numbers, passcodes and contact details
Operation has been crippled - for now
xDedic's admins employed a sophisticated system to conceal the identities of buyers and sellers
Hackers have sent a ransom demand payable on the Dark Web
Sold stolen logins, cookies, browser fingerprints and other information
Hacker claims some of the data has already been sold
Latest swathe of ransomware hits