Thread:Adespoton/@comment-26837468-20150606111718/@comment-24886041-20150610193302

You'll need to provide a bit more detail. Who did you give your Apple ID address to? What does it have to do with your iPad, other than that it is linked to your iPad?

Most iCloud contents are encrypted, so without your UUID from your iPad and your password, there's not much to see. Apple themselves have ways to access your iCloud account, but they don't have the encryption key to unlock any encrypted content stored there. The Messages app has access to iCloud, and this data, while encrypted, is technically accessible by Apple as they hold a key in the key chain.

If you're just talking about Messages and FaceTime and email being linked to your @icloud.com email address, that just means that you've given someone an address where they can contact you, just as if you gave out your phone number or home address. They've still got to get past the locks on your door to see any of the contents :)

HOWEVER, if you have iCloud photo sharing set in Settings>iCloud>Photos, then you can create albums and share them with anyone who subscribes to your photo streams. So in that case, someone who you give your AppleID to CAN look at selected pictures that you designate, if you make those pictures public. If you update the album, anyone subscribed to it will get a push notification letting them know there are new photos to see.