ice-h2o

I pay 12€ a month for ~60W :(

Have multiple copies of the data. Use snapshots, they don’t get encrypted by a ransomware because they are read only and can’t be accessed via samba or nfs. It’s only a problem when the attacker gets root access to your NAS. Use a cloud provider like backblaze and backup your data encrypted. If you are really scared that ransomeware data will overwrite your backups use 3-2-1 and Grandfather-father-son backup strategy. But all this comes at a cost.