I'm not exactly sure what you mean. iCloud data is reportedly encrypted at rest. The issue is that Apple has the decryption key. And they keep it in order to re

I'm not exactly sure what you mean. iCloud data is reportedly encrypted at rest. The issue is that Apple has the decryption key. And they keep it in order to recover you from a lost password event, so that is likely to always be true forever. Having said that, you can add another layer of your own encryption to certain data that is stored in iCloud, like for example the latest Notes app in iOS 9.3. Apple won't have that key.. but the app warns you the data will be lost if you lose it. You could also encrypt files you store in iCloud Drive using an encryption app. But you wouldn't be able to do this with other data that is managed by iOS like iCloud backups or photo libraries.