US city rejects $5.3M ransom demand and restores encrypted files from backup
NetApp has a solution for all of that:
Cloud Volumes ONTAP is a virtualized storage platform running on AWS, Azure, and Google,it consumes native cloud resources and it provides NFS/CIFS/iSCSI.Cloud Volumes ONTAP has the best snapshots out there, immutable and without any resource penalty.  you can take any size snapshots (or restore) in seconds. you can also create clones out of these snapshots, so you can check if that data been affected or not, again in seconds.
Adding to that Cloud Manager's Ransomeware protection that blocks known Ransomware files.In short- this is the best solution out there for any hybrid/ cloud and it can actually be cheaper than free, if you have enough capacity, due to all of its storage efficiencies like dedup, compressions and compaction, with auto-tiering of unused blocks to the checper object storage,.