A Los Angeles hospital has paid a ransom of around $17,000 to anonymous hackers to regain control of its computer network. The Hollywood Presbyterian Medical Center paid 40 Bitcoins to regain control of its medical devices, portals, and file systems, after its network was infected with ransomware by the attackers. CEO Allen Stefanek confirmed that the center had paid the fee, a decision that he said was "the quickest and most efficient way to restore our systems and administrative functions."
http://www.theverge.com/2016/2/17/11042338/hospital-hackers-17000-network-bitcoin