

Many, like Google, use photos to train face detect AIs for instance. What this means in practice is that while your backup data is private while being backed up, the cloud vendor can look at your files if they want to for any reason. The other thing to keep in mind is how sensitive your backups are – many cloud vendors do encrypt data, but very few do so in a “zero knowledge” end to end method and at rest. it’s a building block, but not the whole shebang. This is often pay per GB per month, with charges for download, and often is strictly storage space via an API or CLI offering. However, most cloud providers only offer “enterprise” storage if you happen to use Linux. There are a huge number of options in this space if you use Windows or MacOS, all running about $6/month per computer, or pay for storage used.

Cloud backup is a common solution for home users to actually have backups of their data.
