Sixth Circuit: Trade-Secret Preliminary Injunctions Require Non-Speculative Irreparable Harm and Narrowly Tailored Forensic Imaging Protocols

Introduction

In UEC Holdings, Inc. v. Steven Hatcher (6th Cir. Sept. 17, 2026), the Sixth Circuit vacated and remanded a district court’s preliminary injunction entered in a trade-secret dispute arising from a senior employee’s alleged disclosure of confidential pricing and rate information to a competitor. The plaintiffs—UEC Holdings, Inc. and its operating subsidiary United Electric Company, Inc. (collectively, “Plaintiffs”)—asserted federal and state trade-secret misappropriation claims under the Defend Trade Secrets Act (“DTSA”), 18 U.S.C. § 1836(b), and the Kentucky Uniform Trade Secrets Act (“KUTSA”), Ky. Rev. Stat. Ann. §§ 365.880–365.900, along with contract-based claims tied to the employee’s agreements.

The key issues on appeal were (1) whether the Plaintiffs established irreparable harm sufficient to justify enjoining Kent Power, Inc. (“Kent Power”) from performing a Louisville Gas & Electric (“LG&E”) transmission contract that United Electric could not itself perform, and (2) whether the injunction’s forensic-imaging provisions were narrowly tailored and protective of the Defendants’ confidential and private information.

Summary of the Opinion

The Sixth Circuit held that the district court abused its discretion in granting two central forms of relief:

  1. Enjoining Kent Power’s LG&E transmission work (Paragraph 4(e)): The Plaintiffs did not show “actual and imminent” irreparable harm; the asserted “downstream” competitive injury (relationship-building that might later lead to distribution work) was too speculative on the record.
  2. Ordering broad forensic imaging and production (Paragraphs 4(b)–(d)): The provisions were overbroad because they lacked defined custodians/devices, did not define “responsive” information, and omitted enforceable safeguards (e.g., written protocols and protective orders) to prevent disclosure of the Defendants’ trade secrets and private data.

The court therefore VACATED the preliminary injunction and REMANDED for further proceedings.

Analysis

Precedents Cited

1) Standard of review: errors of law as abuse of discretion

  • Babler v. Futhey, 618 F.3d 514 (6th Cir. 2010): Cited for the general abuse-of-discretion framework governing appellate review of preliminary injunction rulings.
  • Union Home Mortg. Corp. v. Cromer, 31 F.4th 356 (6th Cir. 2022): Clarified that although review is deferential on factual findings and the ultimate balancing, a legal mistake constitutes an abuse of discretion—important here because the Sixth Circuit treated the district court’s irreparable-harm and tailoring determinations as legally deficient given governing standards.

2) Preliminary injunction framework and the centrality of irreparable harm

  • PCC Airfoils, LLC v. Daugherty, 176 F.4th 509 (6th Cir. 2026): Restated the four-factor test and the “clear showing” requirement, anchoring the Sixth Circuit’s insistence that preliminary relief is exceptional and must be justified by concrete proof.
  • Winter v. Nat. Res. Def. Council, Inc., 555 U.S. 7 (2008): Provided the Supreme Court baseline for “clear showing” and the modern approach to preliminary injunctive relief.
  • A1 Diabetes & Med. Supply v. Azar, 937 F.3d 613 (6th Cir. 2019): Cited as part of the Sixth Circuit’s standard articulation of the four factors.
  • D.T. v. Sumner Cnty. Schs., 942 F.3d 324 (6th Cir. 2019): Supplied the crucial caveat that irreparable harm is “indispensable” and “mandatory,” underscoring why speculative harms cannot support injunctive relief.

3) What qualifies as irreparable harm

  • Basicomputer Corp. v. Scott, 973 F.2d 507 (6th Cir. 1992): For the principle that harm is not irreparable if it is fully compensable by money damages.
  • Abney v. Amgen, Inc., 443 F.3d 540 (6th Cir. 2006): Used to demand “actual and imminent” harm, not speculation.
  • Ohio v. Becerra, No. 21-4235, 2022 WL 413680 (6th Cir. Feb. 8, 2022) (order): Reinforced that irreparable harm cannot be “speculative or theoretical.”
  • Insulet Corp. Ltd. v. EOFlow, Co., 104 F.4th 873 (Fed. Cir. 2024): Persuasive authority supporting the Sixth Circuit’s view that generalized fear of competitive harm from alleged trade-secret misuse is insufficient without concrete, imminent injury.

4) Trade-secret injunctions: when competitive disadvantage can suffice

  • Brake Parts, Inc. v. Lewis, 443 F. App'x 27 (6th Cir. 2011): Recognized that trade-secret misappropriation may warrant injunctive relief where the misappropriation produces ongoing competitive harm (e.g., trade secrets integrated into manufacturing/production). The Sixth Circuit distinguished it because the record in UEC Holdings did not show ongoing use of Plaintiffs’ secrets in Kent Power’s LG&E transmission work.
  • AtriCure, Inc. v. Jian Meng, 842 F. App'x 974 (6th Cir. 2021): Another example where injunctions were upheld to stop production tied to trade-secret information; likewise distinguished because Plaintiffs did not establish that the enjoined contract involved continuing misuse.

5) Forensic imaging, confidentiality, and overbreadth

  • John B. v. Goetz, 531 F.3d 448 (6th Cir. 2008): The central cautionary precedent on mirror imaging—imaging “in and of itself” raises confidentiality and privacy concerns; courts must guard against undue intrusiveness and the risk of exposing unrelated confidential or personal information. The Sixth Circuit treated John B. as directly supporting the need for meaningful limitations and safeguards here.
  • Safelite Group, Inc. v. Lockridge, No. 2:21-CV-4558, 2023 WL 4747987 (S.D. Ohio July 25, 2023): Invoked by Plaintiffs to justify imaging, but found inapposite because UEC Holdings turned on narrow tailoring and protective measures, whereas Safelite did not meaningfully address overbreadth in the same way.

Legal Reasoning

1) Vacatur of Paragraph 4(e): no irreparable harm from enjoining a contract Plaintiffs could not perform

The district court enjoined Kent Power from continuing LG&E transmission work, reasoning that the work “furthered” a relationship that could later threaten United Electric’s distribution business. The Sixth Circuit rejected that chain of inference as too speculative on this record:

  • Witnesses confirmed United Electric could not perform transmission work, eliminating a direct competitive injury from Kent Power’s transmission contract.
  • Evidence did not show that United Electric had lost any business to Kent Power; even United Electric’s former COO could not identify a lost opportunity attributable to Defendants.
  • While Kent Power attempted to obtain distribution work, those attempts were rejected for high pricing; the record did not establish a likely, imminent threat to Plaintiffs’ market position.

The Sixth Circuit’s reasoning narrows “relationship-based” theories of irreparable harm at the preliminary-injunction stage: the mere possibility that today’s contract might enable tomorrow’s competition is not enough absent evidence of imminent, non-speculative injury.

2) Vacatur of Paragraphs 4(b)–(d): forensic relief must be narrowly tailored and protected by enforceable safeguards

The injunction required independent forensic examiners to “image, preserve, and search all relevant data sources” including computers, phones, and cloud accounts, and to produce “responsive items” to Plaintiffs—yet it did not specify custodians, devices, search parameters, or what qualifies as “responsive.”

The Sixth Circuit found the order overbroad for two core reasons:

  1. Unbounded scope: Without defined limits, “mirror images” could expose large volumes of unrelated data, including Defendants’ confidential business information and sensitive employee records.
  2. Insufficient confidentiality protections: The absence of a written forensic protocol and protective order left Defendants without adequate recourse if their secrets or private information were disclosed, even inadvertently. Oral “agreements in principle” did not narrow or bind the court’s order.

Statutory context reinforced the result. Although the district court did not issue a DTSA “seizure” order under 18 U.S.C. § 1836(b)(2), the Sixth Circuit analogized to the DTSA’s strict approach: seizures must be the “narrowest” necessary (§ 1836(b)(2)(B)(ii)), and courts must act to preserve trade-secret confidentiality (18 U.S.C.A. § 1835(a)). The court effectively required comparable care when ordering expansive electronic imaging through injunctive relief.

Impact

  • Higher evidentiary burden for “downstream competition” theories: Plaintiffs seeking to enjoin work that they cannot themselves perform must show more than potential relationship-building; they need proof of imminent competitive injury (e.g., concrete bid displacement, impending market entry with demonstrable effects, or ongoing use of secrets in performance).
  • Forensic imaging is not “self-justifying” in trade-secret cases: Even where misappropriation appears likely, imaging orders must define (a) custodians and devices, (b) what is “responsive,” (c) search methods and filters, and (d) enforceable protections (protective order, privilege handling, clawback terms, and restrictions on access and use).
  • Practical effect on preliminary-injunction practice: Litigants should expect district courts in the Sixth Circuit to demand written forensic protocols early, to avoid injunctions that function as open-ended discovery or that risk exposing the non-movant’s trade secrets and private data.

Complex Concepts Simplified

  • Preliminary injunction: A temporary court order entered early in a case to prevent harm before a final decision. It is extraordinary relief requiring a “clear showing” of entitlement.
  • Irreparable harm: Harm that cannot be fixed later with money damages or other remedies. It must be “actual and imminent,” not speculative.
  • Narrow tailoring: The injunction must be no broader than necessary to address the proven harm. Overbroad orders—especially those sweeping in unrelated conduct or data—are disfavored.
  • Forensic imaging / mirror image: Making a bit-for-bit copy of a device (computer/phone/cloud account) that can include everything on it, not just relevant files. Because it can expose unrelated private and confidential material, courts require strict limits and safeguards.
  • Protective order: A court order controlling who may see certain information and how it may be used, often essential when trade secrets and sensitive personal information are involved.
  • Clawback procedure: A process to return or segregate privileged or protected materials that are produced by mistake, reducing the risk that an inadvertent disclosure becomes irreversible.
  • DTSA “seizure” (18 U.S.C. § 1836(b)(2)): An exceptional remedy allowing the court to take possession of property to prevent dissemination of a trade secret, but only with stringent narrowing and protections. The Sixth Circuit used these principles as a benchmark for appropriately constrained digital-forensics relief.

Conclusion

UEC Holdings, Inc. v. Steven Hatcher sharpens two practical rules for trade-secret litigation in the Sixth Circuit: (1) irreparable harm cannot rest on speculative “relationship” or “downstream” competitive fears—particularly where the enjoined work is not something the plaintiff can perform; and (2) court-ordered forensic imaging must be tightly cabined and accompanied by enforceable confidentiality safeguards. The opinion pushes courts and litigants toward disciplined, protocol-driven digital forensics and demands a concrete evidentiary showing before restraining business activity through preliminary injunctions.