The cyber attack that brought down Norwegian industrial firm Norsk Hydro on Tuesday is believed to have been orchestrated by hackers demanding ransom money, company officials confirmed at an afternoon press conference. Hydro won’t pay, and believes it will be able to get its systems back up and running.

https://www.newsinenglish.no/2019/03/19/hackers-hold-norsk-hydro-for-ransom/