4. The obligations of secrecy and confidentiality stated in the above paragraphs shall not apply to any item of Information which (i) the COMPANY can prove by written documents was already known by it at the time of disclosure and was not obtained directly or indirectly from DISCLOSER; (ii) is public knowledge or becomes public knowledge or is published through no fault of the COMPANY; or (iii) is disclosed to the COMPANY by a third party who is not under obligation to DISCLOSER with respect to such information and who did not receive such information directly or indirectly from DISCLOSER.