It now owns your private information retro active from when you first started an account with AT&T
""While your account information may be personal to you, these records constitute business records that are owned by AT&T"
AT&T will also now collect information on what your view on the internet.
AT&T is also currently being sued for handing over millions of customer calling records to the Government.
Personally I think people should ban AT&T for not protecting its customer information. I don't think a Telcom like AT&T should claim owner ship of your private information.