Apple offers local backups. Every cloud backup depends on "trust us", even if open source, externally audited, etc. They can offer a third party online sync opt

Apple offers local backups. Every cloud backup depends on "trust us", even if open source, externally audited, etc. They can offer a third party online sync option but that seems like functionality would open up more security holes than it fixes. You would just have bad actors convincing users to sync to their servers. If you don't trust Apple, you should also not trust other cloud back up services. Just turn off iCloud