premise: It is understood that the foregoing obligation of confidentiality does not apply to: a) information which at the time of disclosure is in the public domain; b) information which is published or otherwise becomes part of the public domain through no fault of the receiving party after the disclosure hereunder; c) information which the receiving party can demonstrate by reasonably convincing evidence is already known or in the possession of the receiving party at the time of disclosure hereunder; d) information that the receiving party can show was received by it after the time of the disclosure hereunder from a third party on a non-confidential basis who did not acquire such information directly or indirectly from the disclosing party under an obligation of confidence; or