On Thu, 12 Nov 2020 16:49:11 -0000 (UTC), Arlen Holder wrote:

*Everything put to the iCloud is read _and_ analyzed by Apple*
o Some of that is _automatically_ sent to law enforcement, unencrypted.

Ooops. That was supposed to be "manually" sent to LE (i.e., the metadata
analysis performed _automatically_ by Apple on all your iCloud uploads).

More details in this long Apple owners' thread (i.e., I didn't author it):
o *iCloud backups are _NOT_ encrypted*, by JF Mezei
https://groups.google.com/forum/#!topic/misc.phone.mobile.iphone/-EA9TYUeVhk