Data is encrypted on your iPhone or iPad, and on your Mac, assuming you’ve enabled File Vault. iCloud data is encrypted when it is sent to and from Apple’s servers, and at rest on Apple’s servers, but the company still has encryption keys, and can access some of your data when requested by law enforcement.
End-to-end encryption, however, removes any possibility of a third party accessing your data: you have the only keys to the data on your devices. Apple’s Advanced Data Protection enables this level of security, but there are some limitations to the way it works.
In this article, I’ll explain what Advanced Data Protection is, how to enable it, and whether you should turn this feature on.
Read the rest of the article on The Mac Security Blog.