premise: Confidential Information does not include information that: i. Is lawfully in the public domain at the time it was transmitted; ii. Is independently known to or in possession of the receiving party at the time of receipt through no unlawful act; iii. Is disclosed by the receiving party with the prior written approval of the transmitting party; iv. Becomes known to the receiving party from a source other than the transmitting party, which third party legally is entitled to have and to disclose such information without restriction.