What Is an NDA?

NDA Definition and Legal Purpose

A Non-Disclosure Agreement (NDA), also structured as a confidentiality agreement, is a legally binding contract governed by state contract law and federal trade secret statutes (such as the Defend Trade Secrets Act of 2016, 18 U.S.C. § 1836). The agreement imposes a legal duty on the recipient (the 'Receiving Party') not to disclose or misappropriate sensitive confidential information shared by the disclosing party.

Common Business Scenarios for NDAs

NDAs are implemented whenever proprietary information must be disclosed for a specific evaluation or commercial purpose. Common scenarios include: vetting potential business partners or joint venture candidates; sharing software source code, product designs, or patent-pending inventions; hiring C-suite executives, technical contractors, or employees; negotiating commercial mergers, acquisitions, or asset purchases; and sharing vendor quotes, pricing sheets, or customer lists with external consultants.

Types of NDAs: Unilateral vs. Mutual

Unilateral NDA (One-Way): Used when only one party discloses secret information to another party (such as a company hiring an independent contractor or sharing financial metrics with an auditor). Only the receiving party owes confidentiality obligations.

Mutual NDA (Bilateral / Two-Way): Used when both parties anticipate sharing proprietary materials (such as two companies evaluating a strategic partnership, co-development venture, or merger). Both parties are reciprocally bound as both disclosers and recipients.

Core Provisions and Standard Exclusions

A robust NDA contains: (1) A tailored definition of Confidential Information; (2) Specific purpose limitations governing how information may be used; (3) Standard exclusions (information already public without breach, already known prior to receipt, independently developed without access, or lawfully received from third parties); (4) Compelled disclosure procedures requiring prompt written notice before complying with a court subpoena; and (5) Injunctive relief clauses recognizing that monetary damages alone cannot remedy trade secret exposure.

Statutory Limitations and Protected Disclosures

Under federal and state law, an NDA cannot legally enforce secrecy over unlawful acts or override statutory reporting channels. Under the federal Defend Trade Secrets Act (18 U.S.C. § 1833(b)), individuals enjoy civil and criminal immunity for confidential disclosures made in confidence to a government official or attorney solely for reporting or investigating suspected legal violations. Furthermore, under the federal Speak Out Act (42 U.S.C. § 19401 et seq.) and laws in states like California, New York, and Washington, pre-dispute non-disclosure agreements cannot prohibit disclosure of sexual harassment or sexual assault disputes.