NDA Meaning — What Is a Non-Disclosure Agreement? Types & Key Clauses

An NDA creates a legal obligation to keep certain information private. When you sign an NDA, you agree not to disclose or misuse the confidential information you receive. NDAs are used in business partnerships, employment relationships, M&A deals, and any situation where sensitive information needs to be shared without becoming public.

The main types are: (1) Mutual NDA — both parties share and protect each other's confidential information; (2) One-Way NDA — only one party discloses confidential information and the other agrees to protect it; (3) Employee NDA — signed as part of employment, often includes non-compete and IP assignment clauses; (4) Vendor/Supplier NDA — used when sharing data with third-party service providers; (5) M&A NDA — used during mergers and acquisitions to protect deal-related information.

Watch for these red flags: overly broad definitions of 'confidential information', perpetual (never-ending) obligations, one-sided termination rights, hidden non-compete clauses, and unclear return-of-information requirements. Upload your NDA to our AI reviewer — it will flag these issues automatically in 30 seconds.

Yes, NDAs are legally binding contracts enforceable in court. To be valid, they must: (1) clearly define what information is confidential, (2) specify the obligations of the receiving party, (3) have a reasonable duration, and (4) be signed by both parties. Courts have enforced NDAs in cases where confidential information was misused, and violations can result in injunctions and monetary damages.