What Is an NDA? Everything You Should Check Before Signing One
NDAs protect secrets — but whose? Before you sign a non-disclosure agreement, understand exactly what you're agreeing to. Here's everything you need to know.
What Is an NDA? Everything You Should Check Before Signing One
You've been offered a job, a business partnership, or a consulting engagement. Before any real conversation starts, someone hands you an NDA and asks you to sign it.
You're probably wondering: What exactly am I agreeing to? What happens if I accidentally violate it? And is any of this negotiable?
This guide answers all of that — in plain English, without the legalese.
Have an NDA ready to review? Upload it to Contrivox and get a plain-English breakdown of every clause in under a minute.
What Is an NDA?
An NDA — Non-Disclosure Agreement — is a legal contract that requires one or both parties to keep certain information confidential.
The basic premise: "What happens here, stays here."
NDAs are used in almost every industry and at every stage of a business relationship:
- Before a job interview (to protect the company's internal information)
- Before a business partnership discussion (to protect both parties' trade secrets)
- In a settlement agreement (to prevent you from discussing a legal outcome)
- Before you see a company's financial data or product roadmap
- When a contractor or vendor will have access to private company information
NDAs are extremely common. Most are reasonable. But not all of them are.
The Two Main Types of NDA
One-Way (Unilateral) NDA One party shares confidential information; only that party's information is protected. Common when a company is hiring a contractor or sharing details with a vendor.
Mutual (Bilateral) NDA Both parties share confidential information and both are bound to keep it confidential. Common in business partnership discussions, M&A conversations, and joint ventures.
If you're signing a one-way NDA, you're the only one obligated to keep secrets — the other party has no equivalent obligation to you. That's worth knowing.
What Should an NDA Include?
A well-drafted NDA should clearly define:
1. What Counts as "Confidential Information"
This is the most important section. If it's too vague, almost anything you ever learn about the company could theoretically be covered.
Look for language like: "Confidential Information means any non-public information disclosed by Disclosing Party to Receiving Party..." followed by specific categories.
Red flag: "Confidential information includes all information of any kind, disclosed in any form, at any time." That's so broad it becomes difficult to comply with.
2. What's Excluded from Confidentiality
Good NDAs list carve-outs — things that are NOT considered confidential even if they relate to the company. Standard exclusions include:
- Information you already knew before signing
- Information that becomes publicly available through no fault of yours
- Information independently developed by you without using the protected information
- Information you received from a third party legally
If the NDA has no exclusions, ask for them.
3. The Duration of the Agreement
How long are you bound by confidentiality? 1 year? 5 years? Forever?
For most business relationships, 2–5 years is standard. Indefinite NDAs (no expiration) are aggressive and worth questioning — trade secrets can be protected indefinitely, but general business information shouldn't be.
4. Permitted Disclosures
You should be allowed to disclose information to your own legal counsel without violating the NDA. You should also be allowed to comply with court orders or government investigations.
Check that these carve-outs exist — if you can't tell your lawyer what you signed without violating the NDA, something is wrong.
5. The Consequences of a Breach
Most NDAs include language about "injunctive relief" — meaning the company can go to court to stop you from disclosing information, often without having to prove they've suffered a specific financial loss. That's standard.
Watch for: liquidated damages clauses that specify a dollar amount per violation. These can be large and disproportionate.
NDA Red Flags to Watch For
| Clause | Why It's a Problem |
|---|---|
| No definition of "confidential information" | You can't know what you're protecting |
| Covers information that's already public | You could violate it without knowing |
| No time limit (indefinite term) | You're bound forever |
| No carve-outs for legal disclosures | You can't report illegal activity |
| Covers your work created before signing | Claiming ownership of your prior work |
| No mutual obligations (one-sided) | Only you bear risk |
| Prohibits working with competitors | That's a non-compete, not an NDA |
| No dispute resolution clause | Vague process if there's ever a problem |
Can an NDA Prevent You From Reporting Illegal Activity?
No. NDAs cannot legally require you to hide crimes, fraud, or illegal conduct from government authorities.
Federal whistleblower protections override NDA language. This includes reporting to:
- The SEC (securities violations)
- The EEOC (discrimination, harassment)
- OSHA (workplace safety)
- The NLRB (labor rights)
Any NDA clause that says you can't report illegal activity to government regulators is unenforceable. But it should still be challenged and removed from the contract — because not everyone knows their rights when they're staring at a violation clause.
Not sure if your NDA is reasonable? Run it through Contrivox — we'll explain every clause and highlight anything unusual.
Can You Negotiate an NDA?
Often, yes.
In a job application context, the company may not be willing to negotiate. But in a business partnership or consulting scenario, the NDA is frequently negotiated.
Common things people successfully negotiate:
- Making a one-way NDA mutual (so both parties' information is protected)
- Narrowing the definition of confidential information
- Reducing the duration (from indefinite to 2–3 years)
- Adding exclusions for information you already know
- Removing overly broad non-compete language sometimes snuck into NDAs
- Adding attorney-review carve-outs
The key is to review it carefully first, identify what bothers you, and come with specific proposed language — not just a vague "I'm not comfortable with this."
NDAs and Employment: What You Need to Know
Employee NDAs are extremely common. Here's the difference between what's standard and what's aggressive:
Standard employee NDA:
- Protects the company's trade secrets, customer lists, and internal processes
- Limited duration (often "during employment + 2 years after")
- Clear definition of what's covered
- Carve-outs for public information and legal disclosures
Aggressive employee NDA:
- Covers "all information" with no definition
- Indefinite term
- Claims ownership of intellectual property you created before joining
- Prohibits discussing your salary with coworkers (illegal under the NLRA)
- Functions as a de facto non-compete
If your employment NDA looks more like the second list, flag those clauses before you sign.
FAQ: Non-Disclosure Agreements
What happens if I violate an NDA? The consequences depend on the contract terms and the nature of the disclosure. In serious cases, you could face a lawsuit for breach of contract, an injunction, and potentially significant damages. Don't violate an NDA — but do understand what it actually covers before you sign.
How long does an NDA last? It depends on the agreement. Common terms are 1–5 years. NDAs for trade secrets may last longer. Indefinite NDAs (no time limit) are common but worth negotiating.
Can an NDA stop me from reporting harassment or discrimination? No. NDAs cannot legally prohibit you from reporting illegal activity — including harassment — to government agencies. In some states, NDAs can't prevent you from discussing harassment even privately.
Is a verbal NDA enforceable? Generally, no. NDAs need to be in writing to be enforceable. A verbal "keep this confidential" is not a legally binding NDA.
Can I sign an NDA with an LLC or corporation? Yes. When signing with a company, make sure the authorized representative is identified, and that the company entity (not just a person's name) is the party to the agreement.
What's the difference between an NDA and a non-compete? An NDA restricts what you say. A non-compete restricts where you work. They're different agreements — but some NDAs include non-compete provisions tucked inside them, so read carefully.
Do I need a lawyer to review an NDA? For a standard business NDA or employee confidentiality agreement, a thorough personal review (aided by tools like Contrivox) is often sufficient. For NDAs with large financial exposure, aggressive terms, or complex IP provisions, consult a lawyer.
Know What You're Keeping Quiet
NDAs are normal. But "normal" doesn't mean "sign without reading." The clauses in an NDA determine what information is covered, for how long, and what happens if things go wrong.
Spend 10 minutes understanding what you're agreeing to. It's better than finding out later.
Upload your NDA to Contrivox → Get a plain-English analysis of every clause — flagged, explained, and scored — in about 30 seconds.
Contrivox provides AI-powered contract explanations, not legal advice. For high-stakes NDA situations, consult a licensed attorney.
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