Oh come on, you and I both know that Apple knows better than you which documents should be sent to iCloud. Duh.
Security researcher Jeffrey Paul recently noticed that Apple’s default autosave is storing in-progress files—the ones you haven’t explicitly saved yet—in the cloud, not on your hard drive. (Surprise!) Unless you decided to hit save before you start typing, or manually changed the default settings, those meeting notes, passwords, and credit card numbers you jotted down in “Untitled 17” are living in iCloud.