This guide is maintained as a current resource for September 2026 and covers only the laws of England and Wales. Information is for general guidance, not legal advice. Consult a qualified solicitor for advice specific to your situation.
Learn how businesses in England and Wales can respond to misuse of confidential information, including legal remedies such as injunctions, damages, account of profits and delivery up orders, when to act, and how confidentiality obligations arise under contract and common law.
Confidential information - such as trade secrets, customer lists, pricing models, research data or commercially sensitive plans - is often crucial to a business's success. When such information is shared in confidence with employees, partners or third parties, the law recognises a duty to keep it secure. If someone misuses or discloses that information without permission, the business that owns it may have legal remedies under English and Welsh law. This article explains the concept of misuse of confidential information, the legal frameworks that apply, the types of remedies available and the practical steps businesses can take to protect and enforce their rights.
What Is Misuse of Confidential Information?
Misuse of confidential information occurs when someone uses or discloses information they were entrusted with in confidence, in a manner that was not authorised by the owner. Confidential obligations may arise:
- Under a contractual clause such as a confidentiality agreement or non‑disclosure agreement (NDA);
- Through an express contractual obligation in employment, supply or partnership contracts; or
- Through the equitable duty of confidence recognised by common law, where information is inherently confidential and shared in circumstances importing a duty to keep it secret.
The law protects not only against actual misuse (such as copying, sharing or exploiting information) but also against threatened misuse where there is a real and imminent risk of breach.
When Confidentiality Obligations Arise
A duty of confidence may arise in multiple ways:
- Explicitly in a written contract: A confidentiality clause or NDA specifically sets out the information covered and how it may be used.
- Implied by circumstances: Even without a written agreement, a duty can arise if information is shared in a context where the recipient knew (or ought to have known) it was intended to be confidential, such as between employer and employee or in sensitive business negotiations.
- By the nature of the information: Information that is not publicly known and would give a business a commercial advantage if disclosed (e.g. secret formulas, client databases) may be treated as confidential.
Confidentiality can extend to both disclosure (sharing with others) and use (exploiting information for an unauthorised purpose).
How Misuse Can Occur
Misuse of confidential information may take many forms in business disputes, including:
- A former employee using client lists or pricing models to compete unfairly with their previous employer;
- A supplier or partner sharing commercially sensitive data with competitors;
- A contractor disclosing strategic plans or trade secrets to third parties;
- A third party receiving information they know is confidential and using it for personal gain.
Liability can attach not only to the original recipient of the information but also to third parties who knowingly receive or misuse it.
Legal Remedies for Misuse of Confidential Information
When confidential information has been misused, businesses can pursue a range of civil law remedies in the courts. Remedies fall into pre‑emptive (injunctive) relief to stop misuse, and compensatory or restorative relief to address losses already suffered.
1. Injunctions
An injunction is a court order preventing a person from doing something - in these cases, from using or disclosing confidential information further. Injunctions can be:
- Interim injunctions: Granted quickly to stop misuse before a full trial, especially where misuse is imminent;
- Final injunctions: Issued after a full hearing on the merits to restrain further breaches.
A specific form of injunctive remedy in commercial confidentiality cases is a springboard injunction, which prevents a former employee or party from using confidential information to gain an unfair competitive advantage after leaving a business.
Injunctions are particularly important when the damage from misuse would be irreparable or difficult to quantify in money terms, such as harm to market position or reputation.
2. Damages
Where misuse has caused financial loss, the courts can award damages to compensate the claimant for that loss. The aim is to put the injured party in the position it would have been in had the misuse not occurred. This may include:
- Direct losses from loss of contracts or profits;
- Consequential losses flowing from the misuse;
- Loss of market value where the confidential information itself has monetised value.
The measure of damages can depend on whether the claimant would have used the information themselves or licensed it to others.
3. Account of Profits
An account of profits is an equitable remedy requiring the defendant to hand over any profits they made from misusing the confidential information. It is distinct from damages and focuses on preventing unjust enrichment rather than compensating the claimant's loss.
This remedy may be appropriate where the defendant benefited financially from misuse, and the claimant's loss is difficult to quantify or where a focus on the defendant's gain is more equitable.
4. Delivery Up or Destruction Orders
A court can order the delivery up or destruction of materials containing confidential information or derived from its misuse, such as copied documents, electronic files or reports. This prevents further use or distribution.
5. Costs and Preservation Orders
Successful claimants may also recover legal costs from the unsuccessful party. In urgent cases, courts can issue preservation or freezing orders to protect evidence and prevent assets from being dissipated while the dispute is ongoing.
When to Seek Remedies: Timing and Strategy
Acting Early
Misuse claims often require timely action. Injunctions are most effective before or shortly after misuse becomes known, because once information is widely disclosed or exploited, money remedies may be the only available relief.
Letter Before Action
Before issuing court proceedings, it is common practice to send a letter before claim requiring the alleged misuser to stop the wrongful conduct, return or destroy confidential materials and provide undertakings. This can sometimes resolve disputes without litigation.
Evidence and Proof
To obtain these remedies, a claimant must establish:
- The information was truly confidential;
- It was disclosed or used without authorisation; and
- The claimant suffered loss or is likely to suffer loss (for injunctive relief).
A written confidentiality agreement, clear marking of information as confidential and records of how and when information was shared help strengthen a claim.
Overlap with Other Legal Protections
Contractual Claims
Where a confidentiality clause exists in a contract, misuse can also trigger a breach of contract claim with similar remedies available. Courts may award damages, injunctions, account of profits or even termination rights under the contract.
Data Protection
If the confidential information includes personal data, misuse can also be a breach of UK GDPR and the Data Protection Act 2018, with regulatory fines and data breach reporting obligations in addition to civil remedies.
Risks and Practical Considerations
Clean Hands and Equity
Where equitable remedies such as injunctions or account of profits are sought, the claimant must approach the court with clean hands, meaning they have not themselves acted improperly regarding the confidential information.
Delay
Delay in seeking remedies can weaken a claim, particularly for injunctive relief. If a claimant waits too long after discovering misuse, courts may be less inclined to restrain further use on the basis that irreparable harm has already occurred.
Common Questions
Do I need a written confidentiality agreement to claim misuse?
No. Even without a written agreement, a duty of confidence can arise if the information was shared in circumstances where a reasonable recipient would recognise its confidential nature.
Can I claim both damages and account of profits?
Typically, a claimant must choose between damages and account of profits, as they are alternative remedies. However, context and legal advice will determine the best option.
Will public interest or whistleblowing protect misuse of confidential information?
In certain circumstances, disclosures in the public interest or protected whistleblowing do not constitute a breach of confidence. These exceptions are narrow and fact‑specific.
Key Takeaways
When confidential business information is misused - whether through unauthorised disclosure, improper use or threatened exploitation - English and Welsh law provides a suite of remedies. The key remedies include injunctions to prevent further misuse, damages to compensate loss, an account of profits to strip gains from misuse, and orders for the delivery up or destruction of materials. Early action, clear documentation, and understanding the legal basis for confidentiality help businesses protect valuable information and enforce their rights effectively. Overlapping contractual and data protection obligations may also provide additional avenues for redress in complex disputes.
