General Notes on Oracle Data Dictionary The Oracle Data Dictionary contains metadata that is readily available via database views.

A data breach Oracle initially denied has now been confirmed The company is reportedly now reaching out to affected customers Oracle is facing an alleged lawsuit ...

The vulnerability will not affect data stored in the Oracle data dictionary, which stores the core information, such as tables of user accounts and database objects, used by the Oracle database.

(Download PDF of their paper.) "The paper published by SANS exposes the location in the Oracle data dictionary where the Oracle password hashes are stored.