You can do an encrypted backup of your iPhone via iTunes, archive it and then move it to whatever you want to. You can also put that backup inside some sort o

You can do an encrypted backup of your iPhone via iTunes, archive it and then move it to whatever you want to. You can also put that backup inside some sort of encrypted container before you upload. You might feel like its redundant to 'double encrypt' your backup, but iOS wont back up a bunch of stuff if you don't encrypt the backup, so you should still do it. You can also use some sort of E2E backup software like arq or restic, dig through it's archives and download your iphone backup that way. https://support.apple.com/en-us/HT204215 https://support.apple.com/en-us/HT204215