What user details are shared with publishers through Apple News? Apple says that “News seamlessly delivers the articles you want to read in a beautiful and uncluttered format, while respecting your privacy, because Apple doesn’t share your personal data,”. What user data is shared with publishers. It is the same data that iAd shares?
In iOS 9 Settings >> News >> News and Privacy, there's a long text that itemizes the privacy protections (and limitations) related to collection and use of individual and aggregated data.

Regarding "Disclosure to Third Parties", it says, in part:


  We do not share any of your individual data with third parties...