As an industry, to mitigate such risks over the long term, we have to move to continuous restoration, which will require innovation in workflows, tools, and services.
I also think that we've begun a reassessment of just how much information needs to be stored, because "Data is a toxic asset." A lot of these systems have data they don't need mixed in with mission-critical data, which raises the complexity of restoration.
Steve Gibson has been heavily covering the increase in ransomeware on his excellent podcast Security Now. From SN I’ve learned some interesting points, including that Ransomeware-as-a-Service is now definitely a thing. There have been a few major operations which hand out ransomeware packages to unethical hackers in exchange for a % of the Bitcoin they collect.
I can only see ransomeware becoming more and more of a problem in the future, though I certainly hope I’m wrong.