By Gary Shuster
Non-disclosure agreements (NDAs) are one of the most common legal tools in business and innovation. They’re simple in concept — one party agrees not to share the other party’s confidential information — but the details matter enormously.
What is an NDA?
An NDA is a contract between two or more parties that defines what information is confidential and restricts how it can be used or shared. NDAs are used in almost every business context: employment, partnerships, investor pitches, vendor relationships, and collaborative development.
Types of NDAs
Unilateral (One-Way): One party shares confidential information; the other agrees to protect it. Common when pitching to investors or hiring contractors.
Mutual (Two-Way): Both parties share confidential information and both agree to protect the other’s secrets. Common in joint ventures, partnerships, and business negotiations.
Key Elements of a Good NDA
- Clear definition of confidential information: Vague definitions lead to disputes. Be specific about what’s covered.
- Duration: How long does the obligation last? Typical terms range from 2 to 5 years, though trade secrets may warrant indefinite protection.
- Exclusions: Standard carve-outs include information that becomes public through no fault of the receiving party, was already known, or was independently developed.
- Remedies: What happens if the NDA is breached? Injunctive relief and damages are standard.
Frequently Asked Questions
Can an NDA prevent someone from using my idea?
An NDA prevents someone from disclosing your confidential information, but it doesn’t prevent them from using ideas they already knew or independently developed. For protection of the idea itself, you may need patent protection. NDAs and patents serve complementary but different purposes.
Are verbal NDAs enforceable?
While some jurisdictions may recognize verbal confidentiality agreements, they’re extremely difficult to enforce because there’s no written record of what was agreed to. Always use a written NDA signed by all parties.
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