What Is the Defend Trade Secrets Act?

The Defend Trade Secrets Act (DTSA) is the federal civil trade secret statute that lets an owner of a misappropriated trade secret sue in U.S. district court when the secret relates to a product or service used in, or intended for use in, interstate or foreign commerce. The statute sits in 18 U.S.C. Chapter 90, alongside the Economic Espionage Act. That matters because trade secret disputes that once depended primarily on state law can now be litigated in federal court with federal remedies, including injunctions, damages, and in rare cases ex parte seizure, meaning a no-notice request for court-supervised seizure before the other side is heard.

For business owners, executives, founders, employers, and general counsel, the DTSA matters most when a departing employee, contractor, vendor, competitor, or business partner is suspected of taking source code, manufacturing know-how, formulas, pricing models, customer strategy, product roadmaps, or other confidential business information. The early litigation question is not whether the information was valuable in a general sense. It is whether the company can prove a statutory trade secret, acquisition, disclosure, use, or threatened misappropriation tied to the defendant, and a remedy the court can enter without overreaching.

DTSA Federal Cause of Action

The DTSA amended federal law in 2016 to create a private civil action for trade secret misappropriation. The operative language is direct: an owner of a trade secret that is misappropriated may bring a civil action if the trade secret has the required interstate or foreign-commerce connection. That commerce element is usually satisfied in commercial technology, life sciences, manufacturing, software, financial services, and other business disputes, but it still belongs in the pleading and proof.

The DTSA did not replace state trade secret law. It added a federal forum and federal remedies to an area that had long been litigated under state statutes and common law. The result is a dual-track litigation system: a plaintiff may plead a DTSA count for federal jurisdiction and federal remedies, while also asserting state trade secret claims and related contract claims. A defendant can respond on both tracks by challenging the existence of a protectable secret, the claimed secrecy measures, the alleged acquisition or use, causation, damages, and the scope of requested emergency relief.

The statute is litigation-oriented. It does not create a registration system for trade secrets. The secret is not protected because a company labels it confidential in a policy or calls it proprietary in a pitch deck. The secret is litigable when the company can identify the information with enough specificity, show that it was not generally known or readily ascertainable by proper means, prove reasonable secrecy measures, and connect the defendant’s conduct to acquisition, disclosure, or use by improper means.

DTSA Trade Secret Requirements

The practical question is what qualifies as a trade secret under the statute. Under 18 U.S.C. § 1839(3), a trade secret can include financial, business, scientific, technical, economic, or engineering information. The statute lists examples such as patterns, plans, compilations, formulas, designs, prototypes, methods, techniques, processes, procedures, programs, and code. That broad list helps plaintiffs, but it does not eliminate the two controlling requirements: reasonable measures to keep the information secret and independent economic value from secrecy.

The first requirement asks what the company actually did before the dispute. Courts look for evidence such as role-based access, confidentiality agreements, password controls, limited repositories, clean-room procedures, document markings, vendor restrictions, exit certifications, and disciplined handling of source code, formulas, customer data, technical files, and pricing models. A company does not need perfect secrecy, but it needs a litigation record showing that secrecy was managed in a reasonable way for the type of information and the business context.

The second requirement asks whether the information has actual or potential economic value because others do not know it and cannot readily obtain it through proper means. In Ruckelshaus v. Monsanto Co., 467 U.S. 986 (1984), the Supreme Court described trade secret value in terms of secrecy and exclusion. The DTSA’s statutory definition follows that premise: the competitive value comes from the fact that the information is not generally known and not readily ascertainable by lawful methods.

Process Table: Trade Secret Qualification Checklist

Issue	Plaintiff-Side Proof	Defense-Side Pressure Point
Identification	Specific files, formulas, methods, datasets, source-code modules, or business compilations.	Descriptions that are too abstract, category-level, or indistinguishable from public knowledge.
Secrecy measures	Access controls, confidentiality obligations, repository restrictions, exit procedures, and vendor controls.	Broad internal access, inconsistent labeling, public disclosures, or informal sharing with no obligation of secrecy.
Economic value	Development cost, market advantage, avoided research and development (R&D), customer leverage, technical acceleration, or pricing advantage.	Information that is stale, public, generic, independently known, or readily ascertainable through proper means.
Connection to defendant	Access logs, downloads, device images, email forwarding, repository access, or matching use by a competitor.	No actual possession, no use, independent development, reverse engineering, or legitimate prior knowledge.

DTSA Misappropriation Elements

Misappropriation under the DTSA has two main paths. First, it includes acquisition of another’s trade secret by a person who knows or has reason to know that the secret was acquired by improper means. Second, it includes disclosure or use without consent when the actor used improper means, knew or had reason to know the knowledge came from improper means, acquired the information under circumstances creating a duty to maintain secrecy or limit use, received it through someone with that duty, or learned before a material position change that the information was a trade secret acquired by accident or mistake.

Improper means includes theft, bribery, misrepresentation, breach or inducement of a breach of a duty to maintain secrecy, and electronic or other espionage. The statute also draws an important defense line: improper means does not include reverse engineering, independent derivation, or any other lawful means of acquisition. That distinction is often central in competitor disputes. A similar product launch is not, standing alone, a DTSA violation. The litigation issue is whether the similarity is tied to improper acquisition, disclosure, or use of specific trade secret information.

For example, the Third Circuit’s decision in Oakwood Laboratories LLC v. Thanoo, 999 F.3d 892 (3d Cir. 2021), is useful for both sides. The court explained that a plaintiff must identify the alleged trade secrets with enough specificity and plead facts supporting protectability and misappropriation. At the same time, the court rejected the idea that a plaintiff must plead exactly how each secret was replicated before discovery. Circumstantial evidence can matter, especially where access, departure, and accelerated development appear in the same record.

Federal Court Jurisdiction Under the DTSA

The DTSA’s jurisdiction provision is short but important: 18 U.S.C. § 1836(c) gives U.S. district courts original jurisdiction over civil actions brought under the statute. That means a plaintiff with a viable DTSA claim does not need diversity jurisdiction to be in federal court. Federal court may also be available when the parties are citizens of different states, and related state-law claims can often be heard with the DTSA claim in the same federal case.

Federal court can change the practical posture of a trade secret case. Emergency motion practice, expedited discovery, protective orders, forensic protocols, sealed submissions, expert declarations, and multi-state enforcement questions are often handled under federal procedure. For companies with operations, employees, servers, customers, or competitors across states, the federal forum can also reduce forum-fragmentation risk.

The statute also has an extraterritorial provision. 18 U.S.C. § 1837 extends Chapter 90 to certain conduct outside the United States when the offender is a U.S. citizen, permanent resident, or U.S.-organized entity, or when an act in furtherance of the offense occurred in the United States. That provision matters in cross-border employee movement, offshore development, global vendor relationships, and pharmaceutical or software disputes involving foreign affiliates.

Emergency Remedies Under the DTSA

Emergency trade secret litigation usually starts with the least invasive remedy that can stop the threatened harm. A temporary restraining order, a preliminary injunction, and a DTSA ex parte seizure order are not interchangeable tools. They differ in notice, burden, duration, who carries out the order, and the risk created by overbreadth.

A TRO under Fed. R. Civ. P. 65(b) may issue without notice only if specific facts in an affidavit or verified complaint clearly show immediate and irreparable injury before the adverse party can be heard, and counsel certifies notice efforts and why notice should not be required. A no-notice TRO expires within the time set by the court, not exceeding 14 days; it may be extended for a like period for good cause, or longer if the adverse party consents. A preliminary injunction requires notice and typically turns on the familiar equitable factors described in Winter v. Natural Resources Defense Council, Inc., 555 U.S. 7 (2008): likely success, likely irreparable harm, balance of equities, and public interest.

Ex Parte Seizure Explained Carefully

DTSA ex parte seizure is more extreme. 18 U.S.C. § 1836(b)(2) allows a court, only in extraordinary circumstances, to order seizure of property necessary to prevent propagation or dissemination of the trade secret. The statute requires specific facts showing, among other things:

• ordinary Rule 65 relief would be inadequate because the target would evade, avoid, or otherwise not comply;
• immediate and irreparable injury will occur without seizure;
• the harm to the applicant from denying the application outweighs the harm to the legitimate interests of the person against whom seizure would be ordered and substantially outweighs the harm to any third parties who may be harmed by such seizure;
• the applicant is likely to succeed in showing that the information at issue is a trade secret and that the person against whom seizure would be ordered misappropriated the trade secret by improper means or conspired to use improper means to misappropriate it;
• the target has actual possession of the trade secret and the property to be seized;
• the matter and location are described with reasonable particularity;
• the person against whom seizure would be ordered would destroy, move, hide, or otherwise make the matter inaccessible to the court if the applicant proceeded on notice; and
• the applicant has not publicized the requested seizure.

Because wrongful or excessive seizure can create its own damages exposure, the applicant should seek the narrowest seizure that preserves the trade secret and avoids unnecessary business disruption. That usually means identifying the device, account, server, folder, or storage location with precision instead of asking the court to seize broad categories of company systems.

The Third Circuit’s opinion in Janssen Products, L.P. v. eVenus Pharmaceuticals Laboratories Inc., 85 F.4th 147 (3d Cir. 2023), shows how carefully courts treat seizure applications. The district court denied a proposed seizure of servers, stored data, laptops, and phones after finding an inadequate showing on possession, location, immediate harm, spoliation risk, and balance of harm. The Third Circuit then dismissed the immediate appeal for lack of jurisdiction, emphasizing that DTSA seizure orders are distinct from injunctions.

What Happens When an Employee Leaves for a Competitor?

Employee departure cases are common DTSA fact patterns. The typical record involves a resignation or termination, a move to a competitor, pre-departure downloads, forwarding to a personal account, cloud-sync activity, Git repository access, USB-device activity, customer-list exports, or post-departure product overlap. The plaintiff’s instinct may be to move fast, but the record must separate suspicion from admissible proof.

The DTSA does not let a company restrain a former employee from working for a competitor merely because the employee knows sensitive information. 18 U.S.C. § 1836(b)(3)(A)(i)(I) provides that an injunction may not prevent a person from entering an employment relationship, and any conditions on employment must be based on evidence of threatened misappropriation, not merely on the information the person knows. 18 U.S.C. § 1836(b)(3)(A)(i)(II) also prevents DTSA injunctions from conflicting with applicable state law prohibiting restraints on the practice of a lawful profession, trade, or business.

That statutory language makes evidence sequence critical. A plaintiff should be prepared to show what the person accessed, when, from what system, whether the access was outside normal duties, what was transferred, where it went, and why the trade secret is at risk of use or disclosure. A defendant should be prepared to show legitimate access, ordinary-course work, return or deletion of materials, independent development, lack of possession, clean-room protections at the new employer, and the difference between general skill and a statutory trade secret.

A separate employee-facing issue is 18 U.S.C. § 1833(b). The DTSA protects qualifying confidential disclosures made to government officials or attorneys for reporting or investigating a suspected legal violation, and trade secret information filed under seal in court. For employers, the litigation consequence is remedy preservation: for agreements entered into or updated after the DTSA’s May 11, 2016 enactment date, the statutory immunity notice must appear in covered employee, contractor, or consultant agreements governing trade secrets or confidential information if the employer later seeks exemplary damages or attorney fees against that worker under the DTSA.

Plaintiff-Side DTSA Strategy

A DTSA strategy starts with the trade secret, not the misconduct narrative. Courts need a definition specific enough to permit discovery and relief without letting the plaintiff use litigation to discover whether a secret exists. The first step is a trade secret identification chart: what the secret is, where it is stored, who had access, which secrecy measures applied, why the information has independent economic value, and which evidence links the defendant to acquisition, disclosure, or use.

Next, preservation and forensic integrity matter. Before a company contacts the suspected employee or competitor, it should preserve logs, devices, cloud records, repository history, access-control records, human resources (HR) documents, confidentiality agreements, invention-assignment documents, exit acknowledgments, and relevant communications. Internal information technology (IT) personnel should avoid self-help that changes metadata, wipes devices, or creates chain-of-custody problems. A court reviewing emergency relief will look for disciplined evidence collection, not a business team’s outrage.

Then the remedy should match the evidence. A narrow TRO preventing use, disclosure, destruction, or transfer may be stronger than an overbroad seizure request. A preliminary injunction may require declarations from business, technical, forensic, and damages witnesses. A seizure order requires even more: particularity, actual possession, inadequacy of ordinary equitable relief, security, law-enforcement execution, and an order setting a hearing at the earliest possible time and not later than 7 days after issuance unless affected parties consent to another date. At that hearing, the applicant bears the burden to support the seizure order. Overbreadth can weaken the entire application.

For a business team, the plaintiff and defense-side strategy question is practical rather than theoretical: each side uses the same record differently. The plaintiff has to make the record concrete enough for urgent relief; the defense has to separate a real trade secret case from a business rivalry, employment dispute, or ordinary competition story.

Defense Strategy in DTSA Cases

Defense strategy should not begin with a denial that nothing was taken. It should begin with a disciplined mapping exercise: what information the plaintiff identifies, whether it is actually secret, whether the plaintiff used reasonable measures, whether the defendant had access, whether any acquisition was improper, whether there was disclosure or use, and whether the requested remedy matches the alleged conduct.

Timing also belongs in the defense map. Under 18 U.S.C. § 1836(d), a DTSA civil action must be commenced within 3 years after the misappropriation is discovered or should have been discovered through reasonable diligence, and a continuing misappropriation is treated as a single claim.

The pleading stage can matter. Under Oakwood Laboratories LLC v. Thanoo, a plaintiff must identify the alleged secrets and plead plausible misappropriation, but the plaintiff is not required to prove the whole case in the complaint. A defense motion can be useful where the claimed secret is only a broad business category, a public feature set, a customer relationship rather than protectable information, or a theory of inevitable disclosure untethered to evidence. But a fact-specific employee-download record may be difficult to dismiss early.

For example, damages strategy requires the same precision. Syntel Sterling Best Shores Mauritius Ltd. v. The TriZetto Group, Inc., 68 F.4th 792 (2d Cir. 2023), affirmed liability but vacated a large DTSA compensatory award, underscoring that damages must fit the statute and the proof. A defendant should test actual loss, unjust enrichment, reasonable royalty, causation, apportionment, double counting, and whether the alleged benefit came from the trade secret or from other commercial factors.

How Does the DTSA Relate to State Trade Secret Laws?

The DTSA preserves state trade secret law. 18 U.S.C. § 1838 provides that, except for the whistleblower-immunity provision in 18 U.S.C. § 1833(b), Chapter 90 does not preempt or displace other civil or criminal remedies under federal, state, commonwealth, possession, or territory law for trade secret misappropriation. In practical terms, a DTSA complaint often includes parallel state trade secret claims, breach of contract, breach of fiduciary duty, tortious interference, computer-access claims, and related commercial claims.

State law matters most in three places. First, state law may define or influence related contract and restrictive-covenant issues. Second, state law may affect the permissible scope of employee restrictions because the DTSA itself forbids injunctions that conflict with applicable state law restraining lawful work. Third, state trade secret statutes and common law may provide remedies, limitations, or preemption rules that differ from the federal claim.

The strategic point is not to choose federal law or state law in the abstract. It is to plead and defend the case in a way that respects both. A plaintiff should avoid assuming that a DTSA count cures weak trade secret identification or weak secrecy measures. A defendant should avoid assuming that defeating a DTSA theory automatically disposes of contract or confidential-information claims, which may be broader than the statutory trade secret claim.

Pre-Counsel Next Step Checklist

Mistake avoidance starts before the first legal demand is sent. The client questions that matter are narrow: what exact information is at risk, who accessed it, where it moved, what secrecy obligation applied, what remedy would stop the harm, and what facts are still only inferences.

Companies should also preserve their own conduct. Emergency trade secret litigation is often judged on credibility. If the business team overstates what was taken, searches personal accounts without authority, publicizes the accusation, or seeks a remedy broader than the evidence supports, the case becomes harder. The record should show control, restraint, and a remedy tied to the actual risk.

What Is Keyhani LLC’s Role in DTSA Litigation?

Keyhani LLC represents companies and accused parties in trade secret litigation, NDA breach litigation, and broader federal district court IP litigation. In DTSA disputes, that litigation and dispute strategy can include emergency TRO and preliminary-injunction strategy, federal-court pleadings, discovery, expert issues, settlement posture, trial strategy, and appeal preservation.

A common mistake in DTSA disputes is treating the case as a confidentiality-policy problem after the fact. Our approach is to test the record as a court will: Can the secret be identified, can secrecy measures be proven, is there evidence of acquisition, disclosure, or use, and is the requested relief narrower than the actual risk? That litigation-first framing helps keep emergency relief tied to the evidence and avoids overclaiming at the TRO or preliminary-injunction stage.

In a suspected trade secret theft matter, the useful first conversation is litigation-specific: what the secret is, what happened, what evidence exists now, what can be preserved, what remedy is proportionate, what claims belong in federal court, and what defenses the other side will raise.

Keyhani LLC is based in Washington, DC and represents clients in federal IP disputes nationwide, including matters connected to Northern New Jersey, the New York metro area, Northern Virginia, Washington DC, and international or cross-border disputes. For DTSA matters, the strategic focus stays on enforcement and defense in court and on the evidence needed to support or resist federal relief.

Frequently Asked Questions About the DTSA

DTSA litigation is strongest when the record stays specific: the trade secret is identified, secrecy measures are provable, acquisition, disclosure, use, or threatened misappropriation is tied to evidence, and the requested remedy is narrower than the risk. That is the difference between an enforceable federal trade secret case and an overbroad business dispute dressed as one.