The Corporate Directors Guidebook contains the bare proposition that a director must keep confidential all matters involving the corporation that have not been disclosed to the public. Moscow explores the need to modify the flat recitation of a rule of director confidentiality in light of the limited authority for a blanket restriction, and the necessary exceptions in the business contexts in which the issue arises. In particular, many situations do not involve damage to the corporation, or there is express or implied consent to the sharing of information