Confidentiality and non-disclosure agreements: What’s the difference?

emily gordon brown
Emily Gordon BrownLegal Assessment Specialist @ Lawhive
Updated on 25th February 2025

Confidentiality agreements and non-disclosure agreements (NDAs) are commonly used in business, legal, and employment settings to protect sensitive information. While they serve a similar purpose, there are key differences between the two. In this guide, we’ll break down how they work and when to use each one.

What is a confidentiality agreement?

A confidentiality agreement is a legally binding contract that ensures sensitive information remains private. It's commonly used to protect trade secrets, business strategies, client data, and internal company information from being shared without permission.

These agreements help businesses, employers, and professionals safeguard valuable information and prevent competitors or third parties from gaining access to private data.

When is it used?

Confidentiality agreements are used in various industries and situations where one or both parties need to protect information. Here are some common examples:

  • Employment contracts: Employers often require employees to sign confidentiality agreements to protect business information, trade secrets, and sensitive company data. This ensures employees do not share confidential details during or after their employment.

  • Business negotiations: When companies discuss mergers, acquisitions, or collaborations, a confidentiality agreement helps keep financial details, strategies, and negotiations private.

  • Intellectual property protection: Businesses use confidentiality agreements to prevent competitors from accessing confidential ideas, inventions, or product developments. This helps secure patents, trademarks, and proprietary technology.

  • Medical and legal sectors: Professionals in healthcare, law, and finance handle personal or confidential client data. Confidentiality agreements ensure they comply with data protection laws (such as GDPR) and maintain client trust.

Pros and cons

Pros ✅

Cons ❌

Protects sensitive business and personal information from unauthorised disclosure.

May be difficult to put in place if the agreement is poorly drafted.

Provides a way to take legal action if a party breaches the agreement.

Can limit an individual’s ability to discuss their work experiences.

Builds trust between parties in business and employment relationships.

Broad agreements may be challenged in court.

What is a non-disclosure agreement (NDA)?

A non-disclosure agreement (NDA) is a type of confidentiality agreement that prevents one or more parties from sharing or discussing confidential information. NDAs are commonly used in business, legal, and professional settings where sensitive details need to be protected but still shared with certain individuals.

Unlike general confidentiality agreements, NDAs explicitly outline what information must remain private and specify the consequences of breaking the agreement.

When is it used?

NDAs are used in situations where businesses or individuals need to share confidential information without making it public. Here are some common examples:

  • Business transactions: NDAs help ensure company information remains private during mergers, acquisitions, or investment discussions. This prevents sensitive financial details from being leaked to competitors.

  • Product development: Businesses use NDAs when discussing new products, technology, or intellectual property with suppliers, investors, or contractors. This protects their ideas from being copied or stolen.

  • Freelancer and consultant agreements: Contractors, freelancers, and consultants often sign NDAs to protect sensitive client data while working on confidential projects.

  • Legal settlement agreements: In some legal cases, NDAs are used in settlement agreements to prevent parties from publicly discussing case details or damaging reputations.

Pros and cons

Pros ✅

Cons ❌

Provides a clear framework for handling confidential information.

May stop whistleblowing.

Helps protect intellectual property and trade secrets.

Can be difficult to put in place if not properly drafted.

Offers clear legal consequences against disclosures.

Some agreements may have broad restrictions that would not stand up in court.

💡Editor's insight:An example of these broad restrictions would be an individual not being able to talk about their job even in general terms. When in doubt, you can work with an NDA lawyer to make sure your agreement will stand up in court”.

What’s the difference between a confidentiality agreement and non-disclosure agreement?

Although confidentiality agreements and NDAs serve similar purposes, they have quite a few key differences:

  1. Scope: A confidentiality agreement usually covers more topics. It deals with disclosure of information and how you handle, store and access it. In contrast, an NDA is focused on stopping disclosure to third parties.

  2. Legal context: Confidentiality agreements are used in employment, medical and legal professions settings. They are also used in ongoing business relationships where you need to be careful with sensitive information. NDAs are used in business deals, negotiations, and product development discussions. This means confidential information is shared on a limited basis.

  3. Mutual vs. one-way agreements: NDAs can be unilateral (one party shares confidential information). They can also be mutual (where both parties share but protect information). Confidentiality agreements tend to be more mutual. All parties are expected to maintain and protect the information exchanged.

  4. Enforceability: Both agreements are enforceable by law if properly drafted. Confidentiality agreements tend to be more flexible in their terms. NDAs when related to business deals include stricter measures such as financial penalties or legal actions in case of a breach.

  5. Duration and limitations: Confidentiality agreements are usually indefinite. This is normally the case in employment and business relationships. The confidential information remains relevant. NDAs may have a term such as five or ten years, after which the information may no longer need protection.

Can they ever be used at the same time?

Yes, confidentiality agreements and NDAs can be used at the same time. In some situations, parties may need both agreements to provide full protection. For example:

  • A company hiring a consultant may have them sign an NDA. This can stop the sharing of trade secrets. They also may use a confidentiality agreement on how to handle sensitive data.

  • Businesses merging may sign an NDA for negotiations. They also may sign a confidentiality agreement covering information post-merger.

  • Employers may use NDAs to protect business plans before hiring. They might put in place a confidentiality agreement once employment begins.

Recap: Key differences compared

Feature

Confidentiality agreement

NDA

Scope

Covers broader obligations, including handling of information

Focuses on stopping disclosure

Legal Context

Used in employment, medical, and legal fields

Used in business deals, negotiations, and trade secrets

Mutual vs. One-way

Often mutual

Can be unilateral or mutual

Enforceability

Legally binding if reasonable

Legally valid if reasonable

Primary Focus

Protects how information is accessed, stored, and used

Prevents disclosure to third parties

Duration

Often indefinite

Usually time-limited

FAQ

Are NDAs legally enforceable in the UK? 

NDAs are valid by law in the UK if they are reasonable and do not attempt to cover illegal activities. They should not prevent whistleblowing.

Can confidentiality agreements last forever?

Some confidentiality agreements may go on forever. Courts may not enforce them if they are unreasonable or too restrictive.

Do confidentiality agreements prevent whistleblowing? 

No, UK law protects whistleblowers who disclose wrongdoing in the public interest. This is the case even if they have signed a confidentiality agreement or NDA.

Final thoughts

Knowing the difference between confidentiality agreements and NDAs is essential for protecting sensitive information in business and legal matters. While both agreements safeguard confidentiality, they serve different purposes and can vary in scope, enforceability, and legal implications.

If you're drafting or signing one, seeking legal advice from a small business solicitor can ensure the terms are fair, clear, and enforceable, helping you avoid potential disputes.

References

Disclaimer: This article only provides general information and does not constitute professional advice. For any specific questions, consult a qualified legal professional.

Daniel McAfee
Fact-checked by Daniel McAfeeHead of Legal Operations @ Lawhive & Practising Solicitor
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