As a seller, you should never allow anybody to access your confidential information without first having them sign a confidentiality agreement. Confidentiality Obligations.CONFIDENTIAL INFORMATION, INVENTIONS, NON-SOLICITATION AND NON-COMPETITION AGREEMENT. An intern confidentiality agreement is a legal agreement between a company and an intern that prohibits the intern from sharing confidential information. And an associate entity. Confidentiality agreements are very useful to prevent unauthorized disclosures of information, but they have inherent limitations and risks.