The Silencing Effect: Corporate Abuse of NDAs and SLAPP Suits to Muzzle UK Whistleblowers

Why the pressure point matters

Corporate wrongdoing rarely announces itself in public. It is often seen first by workers, contractors, advisers, compliance staff, auditors, junior managers or people close to internal systems. They may see false reporting, bribery risk, unsafe practice, discrimination, harassment, procurement manipulation, regulatory avoidance, environmental harm, data misuse or efforts to conceal earlier misconduct.

When those people speak up, the legal response around them can become as important as the disclosure itself. A worker may be told that an NDA prevents disclosure. A former employee may receive a letter before action. A journalist or campaigner may be threatened with defamation proceedings. A settlement agreement may be drafted in terms that appear to shut down contact with regulators. The pressure is often strongest before any court or tribunal tests the merits.

That is why the misuse of NDAs and SLAPP-style threats should be treated as part of whistleblowing protection. A person cannot safely report wrongdoing if the surrounding legal architecture is designed to make silence cheaper than disclosure.

Protected disclosures and their limits

GOV.UK describes a whistleblower as a worker who reports certain types of wrongdoing, usually something seen at work, and states that the wrongdoing must be in the public interest. Public guidance also states that a whistleblower should not be treated unfairly or lose their job because they blow the whistle.

That protection matters, but it is not a complete public-interest disclosure system. Acas explains that most workers are protected if they make a qualifying disclosure, while some people are not usually protected, including genuinely self-employed people, volunteers with no enforceable employment contract, non-executive directors, members of the armed forces, and solicitors or barristers learning about an issue covered by professional privilege.

The legal route also matters. A disclosure made internally, to a prescribed person, to a legal adviser or more widely may carry different risk. A whistleblower may need to prove the disclosure, the public-interest element, the protected route, the detriment, the causal link and the relevant deadline. That legal complexity can become a pressure point in itself.

NDAs: lawful use and risk

NDAs are not automatically improper. Businesses may have legitimate reasons to protect trade secrets, intellectual property, commercially sensitive information, settlement terms, private information and confidential negotiations. The problem arises when confidentiality wording is used, or appears to be used, to stop a person from reporting wrongdoing or obtaining advice.

GOV.UK states that confidentiality or gagging clauses may try to prevent a worker from revealing workplace information, but those clauses are not valid if they try to prevent a worker from making a protected disclosure. That is a critical starting point. The difficulty is that the person receiving the clause may not know how far the protection goes, especially if the agreement is dense, urgent, intimidating or backed by threats of repayment and litigation.

The SRA warning notice on NDAs makes the professional conduct issue clearer for solicitors. The SRA says it is particularly concerned that NDAs are not used to prevent reporting to regulators or law enforcement, or to prevent disclosures protected by law. It treats NDAs as improperly used if they seek to prevent or deter a person from making a protected disclosure under the Public Interest Disclosure Act 1998, reporting misconduct to regulators, cooperating with a criminal investigation, reporting an offence to law enforcement, making a disclosure required by law, or speaking properly to professional advisers who owe duties of confidentiality.

The public-interest issue is readability and pressure. If an NDA contains a lawful carve-out but the overall drafting gives the impression that all external reporting is forbidden, the practical effect may still be silence. A lawful clause should not need a legal battle before the person understands whether they can contact a regulator.

SLAPPs and the cost of speaking

Strategic lawsuits against public participation are not ordinary claims by another name. The concern is litigation, or threatened litigation, used to burden public-interest speech with cost, delay, fear and procedural pressure. Defamation, breach of confidence, misuse of private information, data protection and contract claims may all be invoked in ways that require careful scrutiny.

England and Wales now has a limited statutory anti-SLAPP route in the economic-crime context. CPR 3.4 allows the court to strike out a claimant’s statement of case where the claim is a SLAPP claim within the meaning of section 195 of the Economic Crime and Corporate Transparency Act 2023 and the claimant has failed to show that it is more likely than not that the claim would succeed at trial.

That is a significant development, but it does not solve the broader problem. Many whistleblowing concerns are not limited to economic crime. They may concern safeguarding, discrimination, harassment, public health, regulatory failure, data misuse, environmental harm, abuse of power, unsafe systems or institutional cover-up. If anti-SLAPP protection is narrow, the pressure remains broader than the remedy.

The corporate playbook problem

The risk is not usually one clause or one letter in isolation. It is the combination. A worker may be required to sign a broad NDA, warned about confidentiality, threatened with proceedings, accused of misconduct, told to return or destroy documents, pressed into settlement, and reminded of costs consequences. Each step may be presented as normal legal protection. Together, they can operate as a system of deterrence.

That does not mean every employer defending confidentiality is acting improperly. Companies are entitled to protect genuine confidential information and to respond to false allegations. But the line is crossed where the purpose or effect is to deter lawful whistleblowing, regulatory reporting, law-enforcement contact, professional advice, or responsible public-interest disclosure.

A proper corporate response should separate the wrongdoing concern from the worker. It should investigate the issue, preserve evidence, protect against retaliation, clarify lawful reporting rights, avoid oppressive legal threats, and ensure any settlement wording contains clear protected-disclosure carve-outs. If the first serious response is a threat rather than a triage process, public trust will be weakened.

Case-study discipline

The draft referred to Jonathan Taylor and SBM Offshore as an example of the pressure that can follow corporate whistleblowing. That type of case study may be useful, but named whistleblower articles require tighter sourcing than general commentary. A public-facing article should distinguish between established facts, allegations made by the whistleblower, company responses, court decisions, regulatory findings, criminal process, civil claims and campaign commentary.

For that reason, this article does not depend on one named case. The systemic point is strong enough without presenting contested facts as findings. If a named case-study version is published later, it should be built from primary or high-quality sources: judgments, regulatory settlement documents, extradition or red notice materials, parliamentary materials, public statements from the company, correspondence, and a clear right-of-reply record where appropriate.

That discipline protects the article as well as the reader. The more serious the allegation, the more important the evidence trail. Public-interest commentary is strongest when it can show exactly what is established and exactly what remains disputed.

Reform that would matter

Reform should focus on practical protection, not only formal rights. A whistleblower who is legally protected in theory but financially crushed in practice is not meaningfully protected. A worker who may report to a regulator in theory but is given an NDA that appears to forbid all contact is not meaningfully informed. A defendant who can eventually strike out a claim after months of cost and stress may still have been chilled.

On NDAs, the reform test is clarity. Clauses should use plain language, include visible carve-outs for protected disclosures, regulatory reports, law-enforcement reports, legal advice, medical support and disclosures required by law, and avoid warranties, clawbacks or indemnities that deter lawful reporting.

On SLAPPs, the reform test is early control. Courts need tools to identify oppressive claims quickly, manage costs proportionately, require claimants to show merit at an early stage in defined cases, and sanction litigation conduct that seeks to punish public-interest participation rather than resolve a genuine legal wrong.

On corporate governance, the reform test is investigation. Organisations should be expected to show how disclosures are received, triaged, protected, investigated, escalated and closed. A system that manages the whistleblower more aggressively than the underlying concern is not a safe speaking-up system.

The evidence route

The safest route for a whistleblower begins with evidence discipline. What was disclosed? What document, event or conversation supports it? Who received it? Was it framed as a public-interest concern? What contractual or legal pressure followed? What does the NDA say, and does it include a protected-disclosure carve-out?

Evidence handling must be lawful. A public-interest concern does not give permission to take documents unlawfully, publish confidential information recklessly, breach privilege, disclose third-party personal data or ignore reporting restrictions. The safer route is to preserve lawful records, seek advice before wider disclosure, use protected routes where possible, and keep a precise chronology of threats, responses and deadlines.

Organisations should keep their own evidence trail: how the disclosure was received, who triaged it, what investigation followed, what anti-retaliation steps were taken, what legal threats were approved and whether any NDA was checked for protected-disclosure clarity.