On Android, if you allow it to backup to your Google cloud storage, it will say the backups are encrypted. That was my experience when I set it up a few weeks ago.
Exactly who has the ability to decrypt the backup is not totally clear.
It may be a different situation for non-Android users, Android users who are not signed in with a Google account, Android users who are not using Google Play Services, etc.
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On Android, if you allow it to backup to your Google cloud storage, it will say the backups are encrypted. That was my experience when I set it up a few weeks ago.
Exactly who has the ability to decrypt the backup is not totally clear.
It may be a different situation for non-Android users, Android users who are not signed in with a Google account, Android users who are not using Google Play Services, etc.