Hospitals are in trouble. BTC isn't, but this is a really sad sign of the horror of our times. Bad guys used to attack banks. Could we have imagine a generation ago that criminals would attack hospitals? Happily, considering the pay of top doctors and surgeons, ransom was quite low.
Hospitals should get their IT in order.. In this era it is not responsible to have a crappy IT department and security in place for a company as big as a hospital. Especially when they are dealing with sensitive information.
Who says they could've only encrypted the files? Next time they may steal the files and threaten to release thousands of sensitive personal information from the patients. This is something that should never happen and hospitals should step up and improve their cyber security for this reason.