[LannisterDebt]

I thought iCloud contents were all encrypted?

  No one else, not even Apple, can access end-to-end encrypted information [1]

[1] https://support.apple.com/en-us/HT202303

[xvector]

End-to-end encryption only works for “certain sensitive information” according to your link. A close inspection at the link you provided reveals that just about nothing of value aside from the Keychain is E2EE.

[mceachen]

They got access to her iCloud account.