I guessed that already, but now it's a fact on public record. The only 'safe' solution is to delete all our iCloud backups data, and not use any iCloud services.
But here is the problem! Apple is increasingly integrating iCloud services deep into its iOS and Mac OS X. It's almost impossible to use Apple products without iCloud. This is scary...
We're all already trapped deep in total surveillance by the NSA and god knows by whom else. The orwellian society is real!
I feel like a chimp sitting in a zoo while constantly being watched. Welcome to the 21st century's privacy striptease.
The only way out of our modern tech zoo is going low-tech and to move to an isolated island, dig a cave there (beware spy satellites), and hide there forever.