DTSA vs. CUTSA: Federal and California Trade Secret Claims Compared

Last updated: November 2026

A California business whose trade secrets were taken can sue under the federal Defend Trade Secrets Act, the California Uniform Trade Secrets Act, or both. The two statutes define trade secrets and misappropriation in nearly identical terms and offer the same remedies: injunctions, damages, a reasonable royalty, double exemplary damages, and attorney fees. The real differences are the courthouse, the ex parte seizure remedy, and a few procedural rules. Kolmogorov Law, P.C. files and defends both kinds of claims in Orange County, Los Angeles, and the Central District of California.

Call (909) 235-6116 or contact us online to discuss which claim fits your facts.

The Defend Trade Secrets Act and CUTSA side by side

California's version, CUTSA, has been in the Civil Code since 1985. The federal Defend Trade Secrets Act added a private civil claim in 2016 for any trade secret related to a product or service used in, or intended for use in, interstate or foreign commerce. (18 U.S.C. § 1836(b)(1).) Most businesses with customers or suppliers outside California clear that threshold.

The federal statute does not displace state law. It expressly preserves other civil and criminal remedies for misappropriation. (18 U.S.C. § 1838.) So the same departure of an engineer with a thumb drive can be pleaded under both statutes, in one complaint, in one court.

Where the definitions differ

Both statutes protect information that derives independent economic value from not being generally known and that is subject to reasonable secrecy efforts. (Civ. Code, § 3426.1, subd. (d); 18 U.S.C. § 1839(3).) Both define misappropriation the same way, and both exclude reverse engineering and independent derivation. (Civ. Code, § 3426.1, subds. (a), (b); 18 U.S.C. § 1839(5), (6).)

One wording difference matters. The federal definition requires that the information not be "readily ascertainable through proper means." (18 U.S.C. § 1839(3)(B).) California's definition omits that phrase, and California courts have generally treated ready ascertainability as a defense rather than as an element the plaintiff must disprove. In a customer list case, that shifts who has to prove what. Our page on what counts as a trade secret covers the definition in more depth.

Choosing a court

Federal district courts have original jurisdiction over DTSA claims. (18 U.S.C. § 1836(c).) A plaintiff who pleads a DTSA claim can file in the Central District of California and bring the CUTSA claim, contract claims, and related state claims along with it. A plaintiff who pleads only CUTSA files in the Superior Court, typically the Central Justice Center in Santa Ana or the Stanley Mosk Courthouse in Los Angeles, unless the parties are diverse.

Which is better depends on the case. Federal court moves on a tighter schedule and favors a plaintiff who has the evidence and wants speed. State court gives more room in pleading and gives a defendant the section 2019.210 identification requirement, discussed below.

Remedies compared

Injunctions. Both statutes allow a court to enjoin actual or threatened misappropriation. (Civ. Code, § 3426.2, subd. (a); 18 U.S.C. § 1836(b)(3)(A).) The federal statute adds a limit that matters in California. An injunction may not prevent a person from entering an employment relationship, and conditions on employment must rest on evidence of threatened misappropriation, not merely on what the person knows. (18 U.S.C. § 1836(b)(3)(A)(i)(I).) That limit lines up with California's rejection of the inevitable disclosure doctrine. Our page on TROs and preliminary injunctions explains the procedure.

Damages. Both allow recovery of actual loss plus unjust enrichment not already counted, or a reasonable royalty instead. (Civ. Code, § 3426.3, subds. (a), (b); 18 U.S.C. § 1836(b)(3)(B).) Both cap exemplary damages for willful and malicious misappropriation at twice the compensatory award. (Civ. Code, § 3426.3, subd. (c); 18 U.S.C. § 1836(b)(3)(C).) Both allow attorney fees to the prevailing party for willful and malicious misappropriation or for a claim made in bad faith. (Civ. Code, § 3426.4; 18 U.S.C. § 1836(b)(3)(D).) Our page on trade secret damages works through the measures.

Ex parte seizure. Only the federal statute allows a court, on an ex parte application and only in extraordinary circumstances, to order the seizure of property necessary to prevent the propagation or dissemination of the trade secret. (18 U.S.C. § 1836(b)(2)(A)(i).) The applicant must clearly establish a long list of requirements, including that an ordinary injunction would be inadequate. Seizure orders are rare; a TRO with a preservation order usually does the job.

Procedural rules that differ

Identification before discovery. In a CUTSA action, the plaintiff must identify the trade secret with reasonable particularity before commencing discovery relating to it. (Code Civ. Proc., § 2019.210.) Federal courts in California are divided on whether that rule applies to DTSA claims. Our page on identifying trade secrets with reasonable particularity covers the requirement.

Limitations. Both statutes give three years from when the misappropriation was discovered or reasonably should have been discovered, and both treat a continuing misappropriation as a single claim. (Civ. Code, § 3426.6; 18 U.S.C. § 1836(d).)

Whistleblower notice. The federal statute immunizes confidential disclosures of trade secrets to government officials or an attorney to report a suspected violation of law. An employer that fails to give notice of that immunity in agreements governing confidential information cannot recover exemplary damages or attorney fees under the DTSA against an employee who did not receive it. (18 U.S.C. § 1833(b)(1), (b)(3)(A), (b)(3)(C).)

Displacement of other claims. CUTSA does not affect contract remedies or other civil remedies that are not based on misappropriation of a trade secret. (Civ. Code, § 3426.7, subd. (b).) California courts have read that provision to bar common law claims resting on the same facts as the trade secret claim. Conversion and unfair competition counts are often dismissed for that reason. The DTSA has no comparable provision.

How we decide which to file

In practice we plead both whenever the interstate commerce element is met, and the choice becomes one of forum. A plaintiff with clean evidence of copying who needs a fast injunction often does well in federal court. A plaintiff whose case turns on a jury's view of a departing employee's conduct may prefer the Superior Court. The trade secret misappropriation guide describes the full process.

What to bring to the first meeting

Bring the confidentiality and invention agreements, a description of the information taken, the evidence of taking (access logs, forensic reports, emails), where the business sells and buys, and the names and locations of the people involved.

Frequently asked questions

What is the Defend Trade Secrets Act?

A federal statute enacted in 2016 that gives the owner of a trade secret a civil claim in federal court when the secret relates to a product or service used in interstate or foreign commerce. (18 U.S.C. § 1836(b)(1).) It provides injunctions, damages, exemplary damages up to twice the award, attorney fees, and in extraordinary cases an ex parte seizure order.

Can I sue under both the DTSA and CUTSA?

Yes. The federal statute does not preempt state remedies. (18 U.S.C. § 1838.) Most complaints we file plead both, and the court applies each statute's rules to its own claim. Damages are not doubled; the plaintiff recovers once for the loss.

Is a federal trade secret lawsuit better than a state one?

Neither is better in the abstract. Federal court offers a faster schedule and the seizure remedy. State court applies section 2019.210 and gives more flexibility in pleading. The right choice depends on the strength of the evidence, the need for speed, and where the defendants are.

Does the DTSA let a court stop an employee from taking a new job?

No. A DTSA injunction may not prevent a person from entering an employment relationship, and any conditions on employment must be based on evidence of threatened misappropriation rather than on what the person knows. (18 U.S.C. § 1836(b)(3)(A)(i)(I).) California law takes the same view.

Talk to a California trade secret attorney

If you are weighing a federal or state trade secret claim, or defending one, call (909) 235-6116 or contact us online. Kolmogorov Law, P.C. is at 327 Magnet, Irvine, CA 92618, and appears in the Superior Courts of Orange County and Los Angeles and in the Central District of California. See also our trade secret attorney page.

This page provides general information about California and federal law and is not legal advice. Outcomes depend on the information, the evidence of taking, and the court.