To avoid certain disputes in the future, remember to stipulate whether information:
disclosed before the Signature Date will also be regarded as Confidential Information under the confidentiality clause;
of the Disclosing Party's Affiliates must be treated as Confidential Information (also remember to make sure your definitions of "Affiliate" and "Control" aligns with the intention of the Parties); and
of any third parties disclosed by the Disclosing Party must be treated as Confidential Information.