My new ipad has icloud as my new email address but I don’t have any naked pictures on it. No pictures at all. What else could happen?
Your phone contacts, address, notes, email, Passbook credit cards, etc get backed up.
This post will help you understand more:
http://www.freerepublic.com/focus/f-news/3199158/posts?page=44#44
It appears any data being backed up to the Cloud can be accessed by clever hackers