Those who are familiar with Apple’s iMessage or FaceTime standards probably know that they are end-to-end encrypted. But Apple’s new privacy page really makes it clear just how extensive Apple’s encryption policies really are.
Certain data in Maps and Health is also end-to-end encrypted, for example. But Apple also notes that it uses encrypted storage and encrypted data transmission for Home and Keychain data, as well. The same goes for any data sent to iCloud servers and vice versa.