As used in this article, the term « confidential information » covers all financial, technical, commercial or other information concerning the transaction and business of the disclosed party, including information on costs or prices, contractual terms, marketing or sales data, methods or business plans. When confidential information (a) is defined as information at hand or in writing (for example. B paper, diskette or e-mail), these must be clearly qualified as « confidential » (or with another similar legend) or (b) be identified orally, identified as confidential at the time of disclosure and confirmed in writing within thirty (30) days of publication; unless a reasonable person considers such information to be confidential because of its content. . . .