Theoretically, if you keep separate and secure copies of data and divide/separate data appropriately, ransomware attacks ought to fail or be less dangerous?
How often do you make copies of the data and how to clean these copies from any malware? How fast can you restore the data after a successful ransomware attack?
Regular and frequent data backups have been around for several decades.
I suspect, e.g. Google or Amazon with their data cloud services are already doing a great job to prevent ransomware attacks, but how do they do it? Or were these companies hiding successful cyber attacks on their cloud data storage?
What am I missing?
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