Local encryption of backups is very easy. I could code a basic implementation in an afternoon that would lack sophisticated security features but would be "corr

Local encryption of backups is very easy. I could code a basic implementation in an afternoon that would lack sophisticated security features but would be "correct" and far better than nothing. There's software out there to do it, but it tends to be geeks-only FOSS tools or obscure "advanced" settings in backup engines on things like NAS devices. None of those things are mainstream. The fact that a feature like this doesn't come built into things like Dropbox is puzzling until you consider that large companies have probably been heavily pressured against mainstreaming this kind of encryption. The absence of encryption as a standard option (even if not the default) in things like remote storage, cloud file sharing, and e-mail tools can really only be explained this way since I know for a fact that some percentage of business users would love it.