Comment on How secure is my local backup drive with ssfhs?
bandwidthcrisis@lemmy.world 4 days agoRsync can. For instance, rename files instead of deleting them, so that your backup keeps old files in case they need recovering.
It can also make hard links to existing files so they you can create multiple backup directories that share unchanged files to save space.
Also check out rclone, a similar tool with a focus on supporting many target types, plus it can encrypt a remote location, then mount that backup to access the decrypted files.