What phrase completes the discussion regarding the identity of the hacker?

The phrase "as to" is commonly used to indicate a point of discussion or to clarify a particular aspect of a topic. In the context of discussing the identity of the hacker, "as to" provides a transition to specifying or elaborating on the matter at hand. The phrase helps to signal that the forthcoming information will be focused on the details, conditions, or opinions related to the hacker's identity.

Using "as to" in this context aligns well with formal discussions or inquiries, creating a clear link between the general subject being discussed and the specific subject matter about the hacker, thus aiding in the logical flow of the conversation.