In a tortious interference lawsuit, independently wrongful conduct is behavior that would be illegal or actionable on its own, even if no business relationship had been disrupted. The interfering act must violate a statute, constitute a recognized tort, or breach some other established legal duty. If you could file a separate lawsuit over the conduct by itself, it qualifies. If the only thing wrong with it is that it diverted business from a competitor, it does not. In most jurisdictions, a plaintiff claiming interference with prospective business has to plead and prove this kind of wrong before the claim can move forward.
The rule exists to keep ordinary competition out of court. A persuasive sales pitch that steals a competitor’s client is aggressive; hacking into that competitor’s customer database to do it is independently wrongful. That line decides whether a claim survives.
When the Standard Actually Applies
Not every tortious interference case requires proof of an independent legal wrong. Whether you need it depends on what kind of relationship the defendant disrupted, and this is where many plaintiffs misread their own case.
Interference With an Existing Contract
When a valid, enforceable contract already exists, most jurisdictions apply a more plaintiff-friendly rule. Under the Restatement (Second) of Torts, Section 766, a defendant who intentionally and improperly causes a third party to breach an existing contract is liable for the resulting economic harm. Courts generally evaluate whether the interference was “improper” using a multi-factor balancing test rather than demanding proof of an independent legal violation. A binding contract creates a legal right that gets stronger protection than a mere expectancy.
Interference With Prospective Business Relations
Prospective relationships receive less protection because they have not solidified into enforceable agreements. Under Section 766B of the Restatement, interference with a prospective relationship still requires intentional and improper conduct, but courts applying the independently wrongful standard set the bar higher here. The plaintiff has to show the defendant used means that violated some law or recognized legal duty, not merely that the defendant competed effectively. If two companies are courting the same potential client, the law expects hard-nosed competition: better prices, faster delivery, more favorable terms. The requirement blocks the losing competitor from turning disappointment into a lawsuit.
At-Will Relationships
At-will employment and other terminable-at-will arrangements sit closer to prospective relationships than to binding contracts. Because either party can end the relationship at any time for any reason, inducing someone to leave through legitimate persuasion is usually not actionable. The plaintiff has to show the defendant used wrongful means to cause the termination.
Where the Rule Came From
The modern independently wrongful standard traces largely to the California Supreme Court’s 1995 decision in Della Penna v. Toyota Motor Sales. The court held that a plaintiff claiming interference with prospective economic relations “must plead and prove as part of its case-in-chief that the defendant not only knowingly interfered with the plaintiff’s expectancy, but engaged in conduct that was wrongful by some legal measure other than the fact of interference itself.” Courts across multiple states have since adopted or echoed that framing, though the precise contours vary.
The standard filters out lawsuits where a defendant simply outcompeted the plaintiff through lawful means. Without it, every lost deal could become litigation. The rule forces plaintiffs to identify something concrete at the pleading stage: a specific fraud, a specific threat, a specific statutory violation. Vague allegations of “bad faith” or an “intent to harm” do not clear the bar.
Conduct That Qualifies as Independently Wrongful
Courts have identified several recurring categories. Each involves conduct that violates a recognized legal prohibition separate from the interference itself.
Fraud and Misrepresentation
Deliberately lying to a third party to disrupt someone else’s business relationship is the most commonly litigated form. If a competitor tells your client your product failed safety inspections when it didn’t, or fabricates negative financial information about your company, the fraud is actionable on its own. The plaintiff typically has to prove the defendant made specific false statements, knew they were false, and intended them to influence the third party’s decision.
Defamation
Publishing false statements that damage a business’s reputation qualifies because defamation is already a recognized tort. Spreading lies about a competitor’s product quality, financial stability, or business practices to drive away customers satisfies the standard. The key difference from fraud is that defamation can involve public statements rather than private ones directed at a specific third party.
Threats and Coercion
Physical threats or intimidation directed at a business owner, employees, or customers are the clearest examples. These acts violate criminal statutes regardless of any business context. Economic duress can also qualify when a party uses wrongful threats to coerce someone into abandoning a relationship, though courts require more than hard bargaining. The coercion must involve something like a bad-faith threat to breach a contract, an assertion of a claim known to be false, or similar conduct a reasonable person has no realistic way to resist.
Trade Secret Theft and Breach of Fiduciary Duty
Using stolen proprietary information to lure away a competitor’s clients is one of the most common real-world scenarios. The misappropriation itself provides the independent violation. Similarly, when a former employee or business partner violates a duty of loyalty to help a competitor, that breach of fiduciary duty serves as the wrongful act. These claims often arise when key employees leave and bring client lists, pricing data, or technical information to their new employer.
Antitrust Violations
Anticompetitive behavior prohibited by federal law, such as price-fixing, bid-rigging, or illegal tying arrangements, qualifies. The Sherman Act treats these as felonies, with penalties of up to $100 million for a corporation and $1 million for an individual, plus up to 10 years of imprisonment. When the conspirators’ gains or victims’ losses exceed $100 million, the fine can be doubled beyond those caps.1Office of the Law Revision Counsel. 15 USC 1 – Trusts, Etc., in Restraint of Trade Illegal; Penalty A tying arrangement, where a seller conditions the sale of one product on the buyer purchasing a different product, is among the per se violations that courts treat as automatically illegal without analyzing competitive effects.2Federal Trade Commission. The Antitrust Laws
Unauthorized Computer Access
Accessing a competitor’s systems without authorization to steal customer data, disrupt operations, or gather intelligence can qualify under the federal Computer Fraud and Abuse Act. The statute creates both criminal liability and a private right of action for anyone who suffers damage or loss from unauthorized computer access. To bring a civil claim, the plaintiff must show at least $5,000 in aggregate losses during any one-year period. A civil suit under the CFAA must be filed within two years of the act or the discovery of the resulting damage.3Office of the Law Revision Counsel. 18 U.S. Code 1030 – Fraud and Related Activity in Connection With Computers
What Does Not Qualify
Several categories of conduct that plaintiffs sometimes point to will not satisfy the standard, because they are either lawful or privileged.
Ordinary Competition
Persuading a customer to switch suppliers based on better pricing, higher quality, or truthful product comparisons is protected. The competition privilege is the entire reason the independently wrongful standard exists. As long as the defendant pursued business through legitimate means, the fact that a competitor lost revenue is not actionable. The privilege disappears the moment the defendant resorts to fraud, threats, or other illegal tactics.
Truthful Statements
True statements, even unflattering ones, are not improper. Telling a potential business partner accurate negative information about a competitor does not constitute wrongful interference. Many jurisdictions also recognize a litigation privilege shielding statements made in court filings, testimony, and related communications.
Insiders Acting Within Their Authority
Corporate officers, managers, and employees are generally not treated as third-party interferers when they act within the scope of their authority on behalf of their company. A CEO who decides to terminate a vendor contract is making a business decision. The privilege erodes if the insider acted outside their authority, pursued personal gain at the company’s expense, or used independently wrongful methods.
Legitimate Financial Interests
Parties with a direct financial stake in a transaction can often interfere without liability. A senior lender enforcing its collateral rights, a majority shareholder protecting enterprise value, or a parent company directing a subsidiary’s business decisions may all be protected, so long as the conduct is reasonably directed at protecting that interest and does not involve fraud or other wrongful methods.
What the Plaintiff Has to Prove Alongside It
Independently wrongful conduct is one element in a larger claim. While the formulation varies by jurisdiction, the core framework includes:
- A valid business relationship or expectancy, meaning an existing contract or a prospective relationship with a reasonable probability of forming.
- The defendant’s knowledge of that relationship. Full understanding of the contract terms is not required, but awareness that they were disrupting a business relationship is.
- Intentional interference, not just incidental effects on the plaintiff’s business.
- Independently wrongful conduct, in jurisdictions applying the standard.
- Causation. The plaintiff has to show the relationship would have continued or formed absent the interference. Speculation that a deal “probably” would have happened is not enough.
- Actual economic harm resulting from the conduct.
Courts regularly dismiss claims where the plaintiff alleges general malice or unfair dealing but fails to pin the interference to a specific legal violation. Saying a competitor “acted in bad faith” is not the same as identifying the statute they violated or the tort they committed.
Proving the Wrongful Act Itself
Meeting the standard requires concrete proof, not a narrative about unfair competition. Courts expect documentation of the specific wrongful acts, not just their effects.
For a fraud-based claim, you need to identify the exact false statements, show the defendant knew they were untrue, and show they were directed at a specific third party to influence a business decision. Emails, recorded conversations, and written correspondence are the backbone of these cases. For trade secret claims, you must establish that the information qualified as a trade secret, that reasonable steps were taken to protect it, and that the defendant actually acquired and used it.
A detailed timeline linking the defendant’s conduct to the disruption is particularly powerful. Showing that a long-standing customer left within days of the defendant’s fraudulent statements, rather than months later during a market downturn, strengthens causation considerably. Without that specificity, courts are likely to dismiss the claim or grant summary judgment.
Jurisdictions That Still Use the Balancing Test
Not every jurisdiction has adopted the independently wrongful standard. Some courts still apply the Restatement (Second) of Torts’ multi-factor balancing test from Section 767, which weighs seven factors to decide whether interference was “improper”:
- The nature of the conduct, meaning whether it was inherently offensive or socially acceptable.
- The defendant’s motive, whether to advance a legitimate interest or purely to harm the plaintiff.
- The plaintiff’s interest and how established the disrupted relationship was.
- The defendant’s interest and what benefit it was seeking.
- The social utility of protecting one side’s interest over the other.
- The proximity of the defendant’s conduct to the actual disruption.
- The relationship between the parties, whether competitors, former partners, or strangers.
Under this approach, conduct can be improper even without violating an independent legal standard if the balance of factors tilts against the defendant. Critics argue this gives courts too much discretion and creates unpredictable outcomes. The independently wrongful standard emerged partly as a response, giving defendants a clearer safe harbor: if your conduct does not independently violate the law, you are not liable for interference.
The Restatement (Third) of Torts moved further toward clarity, defining “wrongful conduct” to mean the defendant either acted to appropriate the plaintiff’s business benefits, committed an independent and intentional legal wrong, or interfered for the sole purpose of causing harm. States continue to split on which framework they follow, so identifying your jurisdiction’s approach is the first step in evaluating any claim.