An NDA agreement, short for non-disclosure agreement, is a legal contract that binds you to keep specified information confidential after someone shares it with you. If you’ve been handed one to sign as part of a job offer, a contractor gig, or a business conversation, you’re being asked to accept real legal exposure in exchange for access to information the other side considers sensitive. What follows is what those agreements typically cover, where federal law limits them, and what to check before you sign.
How an NDA Works
An NDA creates a legally binding promise: one or both parties agree to keep certain shared information confidential. The one sharing the information is the “disclosing party.” The one receiving it is the “receiving party.” You may see the same document called a confidentiality agreement or a proprietary information agreement. The name changes; the function doesn’t.
NDAs come in two forms. A unilateral NDA runs one direction: one party discloses, the other promises silence. This is the standard shape in employment and contractor relationships. A mutual NDA (sometimes called bilateral) runs both ways, with each side sharing sensitive information and each side bound to protect it. Mutual NDAs show up when both parties have something to lose, such as partnership talks or joint ventures.
What to Look For in the Document
How Confidential Information Is Defined
The core of the agreement is the definition of “confidential information.” This can cover product designs, customer lists, financial data, business strategies, software code, or manufacturing processes. A well-drafted NDA is specific. Vague catch-all language like “any information a party should know the other wants kept confidential” weakens the agreement and can make it harder to enforce. From your side as the signer, an overly broad definition is a problem in the other direction: it can sweep in general knowledge you already had or would pick up anywhere in the industry.
Exclusions
Any reasonable NDA carves out categories that aren’t treated as confidential even if they’d otherwise fit the definition. Standard exclusions cover information that’s already public, information you already knew before signing, information you received from a third party with no confidentiality obligation, and information you develop independently without using what was disclosed to you.1U.S. Securities and Exchange Commission. Confidentiality and Non-disclosure Agreement – Hifn, Inc. and Exar Corporation Many NDAs also exclude information you’re compelled to disclose by court order or government regulation.2Illinois Institute of Technology Office of General Counsel. Non-Disclosure and Confidentiality Agreements Education Program If these carve-outs are missing, ask why.
Your Obligations
The agreement will describe how you have to handle the information: who inside your organization can see it, what security you need to maintain, and what you’re forbidden to do with it. At minimum, you’re expected to protect the information with the same care you’d use for your own confidential material.
How Long It Lasts
The duration clause sets how long you’re bound. Three to five years is common for general business information. Trade secrets are treated differently. Because a trade secret keeps its legal protection as long as it stays secret, many NDAs impose obligations on trade secrets that extend beyond the general term or run indefinitely.2Illinois Institute of Technology Office of General Counsel. Non-Disclosure and Confidentiality Agreements Education Program Check whether the duration extends past the end of your relationship with the company, and by how much.
When an NDA Holds Up in Court
An NDA is a contract, and it needs the ordinary contract elements. Both sides must agree voluntarily. There must be consideration, meaning each side gives something of value. For a new hire, the job itself is usually enough. For an existing employee asked to sign mid-employment, it gets murkier. Some jurisdictions require additional consideration such as a raise, bonus, or continued employment.3Association of Corporate Counsel. Issues Enforcing Nondisclosure Agreements (United States)
The terms also have to be reasonable. Courts look at the scope of what’s protected, how long the obligation runs, and how much burden it places on the receiving party. An NDA that tries to claim everything an employee ever encounters, or that runs forever on routine business information, risks being struck down as overbroad. The disclosing party also has to show they actually treated the information as secret. Sensitive documents left on a public-facing server tend not to get NDA protection after the fact.3Association of Corporate Counsel. Issues Enforcing Nondisclosure Agreements (United States)
What an NDA Cannot Legally Stop You From Doing
Even a signed NDA does not override federal law. Several protections apply regardless of what the paper says.
Reporting Suspected Illegal Activity
No NDA can stop you from reporting suspected illegal conduct to the government. Under the Defend Trade Secrets Act, you are immune from criminal and civil liability for disclosing a trade secret to a federal, state, or local government official, or to an attorney, when the purpose is to report or investigate a suspected violation of law. The same immunity applies when you disclose a trade secret in a court filing made under seal.4Office of the Law Revision Counsel. United States Code Title 18 Section 1833 If you signed an NDA and later witness fraud, safety violations, or other illegal conduct, the agreement cannot be used against you for reporting it through proper channels.
Talking About Sexual Assault or Harassment
The Speak Out Act, signed into law in December 2022, prohibits enforcement of pre-dispute non-disclosure and non-disparagement clauses when the underlying dispute involves sexual assault or sexual harassment. The key word is “pre-dispute.” An NDA you signed at hiring cannot later be used to silence you about harassment or assault that happens afterward. A confidentiality clause negotiated as part of a settlement after the dispute arises can still be enforceable.5Office of the Law Revision Counsel. United States Code Title 42 Section 19403
Discussing Pay and Working Conditions
The National Labor Relations Act protects employees’ right to engage in “concerted activities” for mutual aid or protection. In practice, that means an NDA cannot prevent you from discussing wages, benefits, or working conditions with coworkers.6Office of the Law Revision Counsel. United States Code Title 29 Section 157 The NLRB has ruled that severance agreements requiring employees to broadly waive these rights violate federal labor law, even when the employee voluntarily signed.7National Labor Relations Board. Board Rules that Employers May Not Offer Severance Agreements Requiring Broad Waivers If your NDA has a clause barring you from talking about your pay or workplace safety concerns, that clause is likely unenforceable.
What Breaching an NDA Can Cost
Violating an NDA can trigger several kinds of legal consequences, and they compound quickly.
- Injunctive relief. The disclosing party can ask a court to order you to stop sharing or using the information immediately. To get that order, they generally have to show harm that money cannot fix and a likelihood of winning the underlying case.
- Monetary damages. Courts can award compensation for actual losses caused by the breach, including lost profits and the diminished value of the information. If the breaching party profited from the disclosure, courts may also award damages for unjust enrichment.8Office of the Law Revision Counsel. United States Code Title 18 Section 1836
- Exemplary damages. When the misappropriation was willful and malicious, a court can award up to double the compensatory damages.8Office of the Law Revision Counsel. United States Code Title 18 Section 1836
- Liquidated damages. Some NDAs specify a pre-set damages amount that applies on breach. These clauses are enforceable only if actual damages would be hard to calculate and the pre-set amount is a reasonable estimate of the potential harm rather than a penalty.
- Attorney’s fees. Under federal trade secret law, the prevailing party can recover reasonable attorney’s fees when the misappropriation claim was made in bad faith or the trade secret was willfully misappropriated.8Office of the Law Revision Counsel. United States Code Title 18 Section 1836
Before You Sign
Read the agreement, don’t just initial it. Watch how broadly “confidential information” is defined. An NDA covering “all information related to the company’s business” could, in theory, keep you from using general industry knowledge in your next job. Look for standard exclusions covering publicly available information and independently developed knowledge. Check the duration and whether it extends past your time with the company.
You can negotiate. Narrowing an overbroad definition, shortening the duration, or adding specific carve-outs for knowledge you already have are all reasonable requests. If an employer insists on terms that would effectively prevent you from working in your field after you leave, that’s worth taking to an attorney. Courts in many states will refuse to enforce NDAs that function as disguised non-compete agreements.