18 U.S.C. § 1836
Defend Trade Secrets Act: the federal trade secret claim, and the notice that unlocks double damages
A federal claim in United States district courts · Last verified August 26, 2026
Trade secret law was state law for a century. In 2016 Congress added a federal civil claim on top — without displacing any of it — so a trade secret owner now pleads both, in federal court, on the same facts.
Two features are unique to the federal version and both catch people. There is an ex parte seizure remedy that lets a court order federal marshals to take property before the defendant is ever heard. And there is a notice requirement buried in a whistleblower-immunity provision that quietly forfeits double damages and fees against employees if your paperwork omits one paragraph.
What the claim is
Someone took, disclosed, or used your trade secret without permission.
Overwhelmingly these are departing-employee cases: the salesperson who left with the customer list, the engineer who copied the design files, the executive who joined a competitor with the pricing model. The rest are competitor espionage, breakdowns between joint-venture partners, and vendors who kept what they were shown.
A trade secret is whatever has value because it is not known and that you took reasonable measures to keep secret — formulas, source code, customer lists, pricing, processes, negative know-how about what does not work.
Where the right comes from
Express, created in 2016:
An owner of a trade secret that is misappropriated may bring a civil action … if the trade secret is related to a product or service used in, or intended for use in, interstate or foreign commerce.
Federal jurisdiction is original but not exclusive, and the statute expressly does not preempt state trade secret law. Nearly every complaint pleads the federal claim alongside the state one, because the elements are close and the state claim may reach conduct the commerce nexus does not.
What a plaintiff has to prove
- A trade secret exists — information deriving independent economic value from not being generally known, which the owner took reasonable measures to keep secret.
- Misappropriation — acquisition by improper means, or disclosure or use without consent by someone who knew or should have known it was acquired improperly.
- A nexus to interstate or foreign commerce.
Element one is where defendants attack. "Reasonable measures" is a real requirement — an employer that never used confidentiality agreements, never restricted access, and let the information circulate freely may find it owned nothing protectable.
No heightened pleading applies. But most districts require the secret to be identified with reasonable particularity, often before discovery opens. A complaint describing "confidential business information" without more will draw a motion, and courts are unsympathetic to plaintiffs who want discovery first to figure out what was taken.
How long you have to file
Three years after the misappropriation is discovered or, by the exercise of reasonable diligence, should have been discovered.
A continuing misappropriation is treated as a single claim — repeated use of the same secret does not restart the clock. The clock runs from discovery of the first act, so an owner who suspected misuse years ago and did nothing cannot rely on ongoing use to revive the claim.
What has to happen before you file
Nothing.
The ex parte seizure application is a remedy, not a prerequisite — and it is available only in "extraordinary circumstances," on findings the statute spells out in detail. It is not the ordinary route, and courts grant it rarely.
Who can be sued — and who cannot
Any person or entity that misappropriated. Individual defendants are fully liable — the departing employee personally, not just the new employer.
Standing belongs to the owner of the trade secret, which most courts extend to exclusive licensees.
No sovereign immunity question arises in the typical private dispute.
Common defenses
Independent development — a complete answer.
Reverse engineering from a lawfully obtained product, which is expressly not improper means.
Not a trade secret — the information was generally known, or the owner took no reasonable measures to protect it.
No misappropriation — the employee's general skill and knowledge is theirs to take.
The whistleblower immunity. This one is unusual and worth stating fully: there is no criminal or civil liability under any federal or state trade secret law for a confidential disclosure made to a government official or to an attorney solely to report or investigate a suspected violation of law, or in a document filed under seal in a lawsuit. An employee who took documents to a lawyer to report fraud is protected.
What the claim pays
Injunctive relief — but constrained, deliberately, to protect employee mobility. A court may not enter an injunction that merely prevents a person from taking a job, and any conditions on employment must rest on evidence of threatened misappropriation, not merely on what the person knows. Congress wrote that limit in specifically to blunt inevitable-disclosure theories.
Damages — actual loss plus unjust enrichment not captured by the loss, or, in the alternative, a reasonable royalty.
Exemplary damages up to twice the compensatory award for willful and malicious misappropriation.
Attorney's fees for willful and malicious misappropriation, for a claim made in bad faith, or for a bad-faith motion to terminate an injunction.
Ex parte seizure — an order directing federal law enforcement to seize property to prevent dissemination, available only on the demanding findings the statute lists. It comes with a counterweight: a wrongful seizure cause of action for a target damaged by an order that should not have issued.
Jury trial available on legal damages.
Now the trap, and it is entirely avoidable. Exemplary damages and attorney's fees are not available against an employee unless the employer gave that employee the whistleblower-immunity notice in the agreement governing trade secrets or confidential information. The requirement applies to agreements entered into or updated after May 11, 2016. An employer with a decade-old form agreement and no notice paragraph keeps its compensatory damages and loses the two remedies that make the case worth bringing against the individual.
What people get wrong
"The DTSA replaced state trade secret law." No. It expressly does not preempt, and both are normally pleaded.
"Willful theft always gets double damages and fees." Not against an employee whose agreement omitted the whistleblower notice.
"Ex parte seizure is how you start these cases." No. Extraordinary circumstances only, and wrongful seizure is itself actionable.
"An employee who knows our secrets can be stopped from working for a competitor." Not on that basis alone. The statute forbids an injunction that merely prevents someone from taking a job.
"Everything we call confidential is a trade secret." Only if it has value from secrecy and you took reasonable measures. Labels are not measures.
"The clock restarts each time they use it." No. Continuing misappropriation is a single claim running from discovery.
Where it came from
Trade secrets were the last major category of intellectual property with no federal civil remedy. Owners had criminal referral under the Economic Espionage Act of 1996, or state court, or federal court only if diversity happened to exist. The result was inconsistency across states and no reliable way to move quickly across state lines.
The DTSA of 2016 amended the Economic Espionage Act to add the civil action. Its three distinctive features were all deliberate design compromises: the seizure remedy to answer the problem of evidence leaving the country overnight, the employee-mobility limits to answer objections that a federal claim would entrench non-competes by another name, and the whistleblower immunity — with the notice condition — to ensure the new claim could not be used to silence people reporting crime.
No Supreme Court decision has construed the statute. The developing questions are in the circuits: how far the claim reaches conduct abroad, and how particularly a secret must be identified before discovery.
Common questions
How long do I have to bring a DTSA claim?
Three years from when you discovered the misappropriation or, with reasonable diligence, should have discovered it. Continuing misuse is treated as one claim, so it does not restart the clock.
Can I stop a former employee from working for a competitor?
Not on the basis of what they know. The statute bars an injunction that merely prevents a person from entering an employment relationship, and any conditions must rest on evidence of threatened misappropriation.
Can I get double damages and attorney's fees?
For willful and malicious misappropriation, yes — but not against an employee unless your agreement with them contained the required whistleblower-immunity notice. Check your agreements before you rely on it.
Does the DTSA replace my state trade secret claim?
No. It expressly does not preempt state law, and most plaintiffs plead both.
Is an employee protected if they took documents to report wrongdoing?
Yes. There is immunity from trade secret liability for confidential disclosures made to a government official or an attorney solely to report or investigate a suspected violation of law, or in a sealed court filing.