Trade Secret Identification and Discovery Checklist: A Practical Checklist

Summary. This checklist turns the law of trade secret identification and discovery into a sequence of concrete tasks for trade secret owners, accused employees and competitors, in-house counsel, and outside litigators. It starts with the first seventy-two hours after a suspected theft, covering preservation, forensic imaging, and the pre-suit investigation, then walks through drafting a numbered identification with reasonable particularity, negotiating the sequence of discovery, and testing an opponent's identification. Later parts cover the two-tier protective order, source code and prosecution-bar provisions, neutral forensic protocols for devices and personal accounts, emergency relief and the DTSA seizure remedy, written discovery and depositions, spoliation under Rule 37(e), and amendments to the identification. The final parts address summary judgment, trial, courtroom confidentiality, and the supplier-and-customer version of the case. Each item carries a short note and the governing statute, rule, or decision, and the checklist reflects the law as of September 2026, including the Ninth Circuit's 2025 decision in Quintara and the Seventh Circuit's 2026 decision in NEXT Payment Solutions.

Most trade secret cases are not lost on the law. They are lost on housekeeping: a departed engineer's laptop reimaged by a helpful IT department, an identification that describes what the software does instead of what the secret is, a protective order that lets the wrong person read the formula, a forensic protocol nobody bothered to negotiate. Each of those failures happens early, quietly, and for want of a list. This is the list.

How to use this checklist

Parts 1 to 4 run in rough chronological order from the day the problem surfaces to the case-management conference. Part 5 is written for the defendant who receives an identification. Parts 6 to 10 cover the protective order, forensic discovery, emergency relief, ordinary discovery, and spoliation, which in practice run in parallel. Parts 11 and 12 carry the identification through amendment, summary judgment, and trial, and Part 13 adapts everything to the case in which the accused is a supplier or customer rather than a former employee. Items marked (Owner) are for the party asserting the trade secret, items marked (Accused) are for the employee, new employer, or business partner on the other side, and unmarked items apply to both.

The short version. Courts in most jurisdictions require the party claiming misappropriation to identify each asserted trade secret with reasonable particularity (enough detail to separate it from general knowledge in the field and to let the other side and the court see what is actually in dispute) before it takes discovery into the defendant's own technology. California makes that a statutory precondition, and many federal courts impose the same sequence as a matter of case management, although the Ninth Circuit held in Quintara Biosciences, Inc. v. Ruifeng Biztech, Inc., No. 23-16093 (9th Cir. Aug. 12, 2025), that the federal Defend Trade Secrets Act (DTSA) imposes no up-front identification requirement and that an identification order may not be used to strike secrets before the merits. Everything else on this list (the protective order, the forensic protocol, the sequencing order, the verdict form) is built around that numbered identification, and the price of a vague one is paid at summary judgment, as the plaintiff learned in NEXT Payment Solutions, Inc. v. CLEAResult Consulting, Inc., No. 24-1377 (7th Cir. Jan. 14, 2026).

For the doctrine behind each item, read Identifying Trade Secrets in Litigation: Reasonable Particularity, Sequencing Discovery, and Protecting the Secret While You Sue. For the same ground told step by step, see Managing Discovery in a Trade Secret Case: A Practical Guide. The model identification statement, protective order provisions, preservation letter, and forensic protocol referred to below are in the Trade Secret Litigation Toolkit: Identification Statements, Two-Tier Protective Orders, and Forensic Protocols.

Part 1: The first seventy-two hours

• (Owner) Stop the reimaging. Tell IT in writing to pull the departed employee's laptop, phone, and returned media out of the redeployment queue and to suspend automatic deletion of the employee's mailbox, cloud drive, and chat accounts. Reimaging is routine IT hygiene and the most common self-inflicted wound in these cases. The duty to preserve begins when litigation is reasonably anticipated, Zubulake v. UBS Warburg LLC, 220 F.R.D. 212 (S.D.N.Y. 2003); Micron Technology, Inc. v. Rambus Inc., 645 F.3d 1311 (Fed. Cir. 2011), and the owner is usually the first party to anticipate it.
• (Owner) Image before anyone looks. Have a qualified examiner make verified forensic images (bit-for-bit copies, including unallocated space, confirmed by hash values) before anyone "just checks" the device, because browsing changes the very metadata that will prove what happened. See A.M. Castle & Co. v. Byrne, 123 F. Supp. 3d 895 (S.D. Tex. 2015). Start a chain-of-custody log the same day.
• (Owner) Pull the logs that expire. Data-loss-prevention alerts, USB connection records, VPN and single-sign-on logs, cloud audit trails, print logs, badge records, and mailbox forwarding rules. Some audit logs roll over within weeks or months under default settings, and a log that no longer exists cannot be imaged later.
• (Owner) Issue a written litigation hold to every custodian who touched the employee's work, and follow up. Counsel must take affirmative steps to see that the hold is honored and that key sources are actually collected, Zubulake v. UBS Warburg LLC, 229 F.R.D. 422 (S.D.N.Y. 2004). The Litigation Hold and Evidence Preservation Checklist has the mechanics.
• (Owner) Send a preservation demand to the employee and, where the facts justify it, to the new employer, naming the devices, accounts, and categories of files at issue and proposing a neutral examiner. The letter also fixes the latest date on which the recipients' duty to preserve attached, Cohn v. Guaranteed Rate, Inc., 318 F.R.D. 350 (N.D. Ill. 2016).
• (Owner) Run the investigation through counsel. Communications with employees made to secure legal advice are privileged, Upjohn Co. v. United States, 449 U.S. 383 (1981), and an investigation qualifies if obtaining legal advice was one of its significant purposes, In re Kellogg Brown & Root, Inc., 756 F.3d 754 (D.C. Cir. 2014). Assume the underlying facts, and possibly the forensic report itself, will be discoverable: in Waymo LLC v. Uber Technologies, Inc., 870 F.3d 1350 (Fed. Cir. 2017), a forensic report on the departing engineer, commissioned before an acquisition, was ordered produced; the Federal Circuit dismissed the engineer's appeal and denied mandamus.
• (Owner) Stay out of the employee's personal accounts. Reviewing what is stored locally on a returned company laptop is ordinary forensics; one court held that emails saved on a laptop are not in "electronic storage" under the Stored Communications Act, Hilderman v. Enea TekSci, Inc., 551 F. Supp. 2d 1183 (S.D. Cal. 2008). Logging into the employee's live personal webmail or cloud account with saved credentials is a different act and can violate 18 U.S.C. § 2701.
• (Accused) Quarantine and document. The new employer should wall the employee off from the relevant project, collect the employee's devices and storage media, instruct in writing that nothing be deleted, and record each step with dates. These steps are both a defense and the best evidence of good faith.
• (Accused) Preserve; do not clean. Deleting, "returning" files by wiping them, or running a cleanup utility after a demand letter converts a defensible case into a default. In Organik Kimya, San. ve Tic. A.S. v. International Trade Commission, 848 F.3d 994 (Fed. Cir. 2017), a respondent overwrote a laptop's free space more than one hundred times days before a court-ordered inspection, and the Federal Circuit affirmed a default; in OmniGen Research v. Wang, 321 F.R.D. 367 (D. Or. 2017), defendants who "donated" a desktop computer to Goodwill and deleted thousands of files after a production order suffered a default judgment.
• (Accused) Separate the employee's interests from the employer's. Indemnity, exposure to individual liability, and possible criminal exposure under 18 U.S.C. § 1832 can make joint representation unworkable. An individual facing a criminal referral needs criminal counsel before any interview, declaration, or deposition, because silence in a civil case can support an adverse inference, Baxter v. Palmigiano, 425 U.S. 308 (1976).

Notes. The first week decides whether the evidence survives. For the employer's side of the departure itself, use the Employee Departure Trade Secret Protection Checklist; for preservation duties and sanctions in depth, see Litigation Holds, Spoliation, and Rule 37(e): Preserving Electronic Evidence Before It Costs You the Case.

Part 2: Investigate before you identify

• (Owner) Reconstruct what left and how. Build a timeline from the forensic artifacts: device connections, file copies, cloud uploads, email forwards, deletions, and wiping traces. Generate a hash list (a cryptographic fingerprint for each file) of everything that went out the door; it will drive the neutral's search later.
• (Owner) Triage the files. Sort them into public material (data sheets, published papers, marketing), personal files, stale or superseded material, and candidates for trade secret status. In the typical departing-employee case a large share of what was copied is public or personal, and saying so early buys credibility you will need when you ask for a forensic order.
• (Owner) Test each candidate against the statutory definition. The DTSA protects information that derives independent economic value from not being generally known or readily ascertainable through proper means and that the owner has taken reasonable measures to keep secret, 18 U.S.C. § 1839(3). The Restatement factors (how widely the information is known inside and outside the business, the measures taken, its value, the cost of developing it, and how hard it would be to duplicate) remain a useful way to organize the evidence, Learning Curve Toys, Inc. v. PlayWood Toys, Inc., 342 F.3d 714 (7th Cir. 2003), even though they are not elements a jury must check off.
• (Owner) Assemble the reasonable-measures file for each candidate. Confidentiality and invention agreements, access controls, markings, training records, and exit certifications. Weak measures sink otherwise good cases: an employer that encouraged an employee to keep customer information on his personal laptop and phone, and never asked him to delete it when he left, lost on this element, Yellowfin Yachts, Inc. v. Barker Boatworks, LLC, 898 F.3d 1279 (11th Cir. 2018).
• (Owner) Search your own public footprint. Patents and published applications, papers, conference slides, product manuals, demonstrations, customer presentations, open-source releases, and anything shared with licensees or distributors without a confidentiality obligation. In Broker Genius, Inc. v. Zalta, 280 F. Supp. 3d 495 (S.D.N.Y. 2017), the court denied a preliminary injunction because the plaintiff disclosed the claimed features to its licensees as a matter of course without requiring them to keep those features confidential.
• (Owner) Calendar the limitations period. A DTSA action must be filed within three years after the misappropriation is discovered or should have been discovered with reasonable diligence, and a continuing misappropriation is one claim, 18 U.S.C. § 1836(d). State periods differ; check them before assuming the federal clock controls.
• (Owner) Choose claims and forum deliberately. Most complaints plead the DTSA alongside the state Uniform Trade Secrets Act, which the federal statute does not displace, 18 U.S.C. § 1838. In California, Cal. Civ. Proc. Code § 2019.210 requires identification before discovery on a state-law claim, and California's statute supersedes other claims resting on the same nucleus of facts, Waymo LLC v. Uber Technologies, Inc., 256 F. Supp. 3d 1059 (N.D. Cal. 2017) (dismissing an unfair competition claim). Massachusetts has a parallel identification rule, Mass. Gen. Laws ch. 93, § 42D(b). Do not count on the Computer Fraud and Abuse Act, 18 U.S.C. § 1030, against an employee who was authorized to access the data he took; after Van Buren v. United States, 593 U.S. 374 (2021), misusing information one was entitled to access does not "exceed authorized access."
• (Owner) Read the agreements for traps. Look for arbitration and forum-selection clauses, choice of law, and the whistleblower-immunity notice. An employer that omitted the notice from agreements entered or updated after May 11, 2016 cannot recover exemplary damages or attorney's fees under the DTSA against that employee, 18 U.S.C. § 1833(b)(3). An employee's arbitration clause does not necessarily let the new employer force the former employer into arbitration: Waymo LLC v. Uber Technologies, Inc., 252 F. Supp. 3d 934 (N.D. Cal. 2017), aff'd, 870 F.3d 1342 (Fed. Cir. 2017).
• (Owner) Plead notice, not the secret. A complaint must describe the subject matter with enough particularity to separate it from general knowledge and show the boundaries within which the secret lies, but it need not spell out the details publicly, Oakwood Laboratories LLC v. Thanoo, 999 F.3d 892 (3d Cir. 2021); the plausibility standard of Bell Atlantic Corp. v. Twombly, 550 U.S. 544 (2007), still applies to the misappropriation allegations.
• (Owner) Draft the identification before you file. If you cannot write a paragraph about a secret that an engineer at the defendant could search against, you are not ready to sue on it. The draft also tells you whether you can support a temporary restraining order (Part 8).

Notes. Cases are won by owners who know their secrets before the defendant asks. A standing inventory makes this part fast; the Trade Secret Audit Checklist and Building a Trade Secret Protection Program from Scratch explain how to build one. For the life cycle of a federal case, see Trade Secret Misappropriation Litigation Under the Defend Trade Secrets Act: A Practical Guide.

Part 3: Draft the identification

• (Owner) Get protection in place first. Serve the identification only under a protective order or a written confidentiality agreement that covers it. The court must take the steps necessary "to preserve the confidentiality of trade secrets," 18 U.S.C. § 1835(a), and the Federal Judicial Center's guide advises that a plaintiff should not have to serve until such protection exists. Designate the document attorneys' eyes only.
• (Owner) Write a numbered list, one secret per number. Numbering draws the boundary of each secret, keeps secrets from being conflated, and gives everyone a short name ("Trade Secret No. 7") for depositions, expert reports, orders, and the verdict form.
• (Owner) Describe the secret, not its function. Each entry should say what the information is (the components and ranges, the steps and parameters, the selection criteria, the code and what its logic does differently), not what it achieves. The court in DeRubeis v. Witten Technologies, Inc., 244 F.R.D. 676 (N.D. Ga. 2007), faulted a list that described "the end results of, or the functions performed by," the claimed secrets, and the NEXT Payment Solutions plaintiff lost at summary judgment after describing what its software did rather than how it did it.
• (Owner) Apply the two-part test before you serve. Does each entry (1) put the defendant on notice of the nature of the claim and (2) let it judge the relevance of the discovery you will request? DeRubeis, 244 F.R.D. 676. A practical proxy: could a competent engineer or salesperson at the defendant search its own files against the paragraph and answer "we use that" or "we do not"?
• (Owner) Match the detail to the kind of information.
  • Formula: the named components, their weight-percent ranges, and the processing conditions.
  • Process: the sequence of steps and the parameters at each step that depart from published practice.
  • Source code: modules or functions by file path and version, with a sentence on what the logic does that public implementations do not.
  • Dimensions and specifications: the numbers themselves. "Every dimension and tolerance" failed in Imax Corp. v. Cinema Technologies, Inc., 152 F.3d 1161 (9th Cir. 1998); "the precise dimensions and measurements" of identified components succeeded in Life Spine, Inc. v. Aegis Spine, Inc., 8 F.4th 531 (7th Cir. 2021).
  • Customer and pricing compilations: which fields, for which accounts, in which database. A compilation of individually public data can qualify, Experian Information Solutions, Inc. v. Nationwide Marketing Services Inc., 893 F.3d 1176 (9th Cir. 2018).
  • Negative know-how: the specific approaches that failed, tied to identified test reports. Knowing what does not work can be protectable, Metallurgical Industries Inc. v. Fourtek, Inc., 790 F.2d 1195 (5th Cir. 1986).
• (Owner) Spell out combination secrets. Identify the elements, how they are combined, and how they operate in unique combination, Struthers Scientific & International Corp. v. General Foods Corp., 51 F.R.D. 149 (D. Del. 1970); see Integrated Cash Management Services, Inc. v. Digital Transactions, Inc., 920 F.2d 171 (2d Cir. 1990). If only a subset is the secret, say which subset. A "secret sauce" claim without that explanation failed at summary judgment in Sit-Up Ltd. v. IAC/InterActiveCorp, No. 05 Civ. 9292, 2008 WL 463884 (S.D.N.Y. Feb. 20, 2008).
• (Owner) Cite documents as support, never as a substitute. Pinpoint the page, line, file path, or hash value that embodies each secret. It is inadequate to "cite and incorporate by reference hundreds of documents," InteliClear, LLC v. ETC Global Holdings, Inc., 978 F.3d 653 (9th Cir. 2020), and a plaintiff may not "invite the court to hunt through the details," IDX Systems Corp. v. Epic Systems Corp., 285 F.3d 581 (7th Cir. 2002).
• (Owner) Delete every catchall. "Including but not limited to" and "all related know-how" add nothing and signal that the owner does not know what it owns. A plaintiff may not use catchall language to reserve an unrestricted right to amend, Perlan Therapeutics, Inc. v. Superior Court, 178 Cal. App. 4th 1333 (2009).
• (Owner) Borrow the discipline of a patent claim, not its law. Number the elements and avoid catchalls, but do not try to satisfy 35 U.S.C. § 112. Quintara reversed an order that demanded patent-style claims and then struck most of the plaintiff's secrets.
• (Owner) In California, meet § 2019.210 on its own terms. Reasonable particularity does not require every minute detail or a miniature trial on the merits, and a designation that credible experts can understand is generally adequate, Advanced Modular Sputtering, Inc. v. Superior Court, 132 Cal. App. 4th 826 (2005); an explanation of how the secret differs from the prior art is required only when the description is otherwise inadequate, Brescia v. Angelin, 172 Cal. App. 4th 133 (2009). Discovery on every claim that depends on the misappropriation allegation waits for a compliant designation.
• (Owner) Never file the identification on the public docket. Serve it under the protective order and lodge it under seal if the court needs it. A plaintiff that filed its disclosure publicly undercut its own claim of secrecy, Loop AI Labs Inc. v. Gatti, 195 F. Supp. 3d 1107 (N.D. Cal. 2016).
• (Owner) Verify it and keep the backup ready. A knowledgeable officer or engineer should confirm each entry. Prepare, but do not attach, an expert declaration walking through each number; the FJC guide treats expert support as appropriate when sufficiency is disputed, not as part of the identification itself.
• (Owner) Start narrow and log your diligence. Lead with the strongest, most specific secrets and keep a dated record of when you learned each new fact. That record becomes your good cause if you later amend (Part 11).

Notes. The Trade Secret Litigation Toolkit has a model identification with annotated entries for each type of secret. The Sedona Conference, Commentary on the Proper Identification of Asserted Trade Secrets in Misappropriation Cases, 22 Sedona Conf. J. 223 (2021), and chapter 4 of the Federal Judicial Center's Trade Secret Case Management Judicial Guide (2023) are the two sources judges are most likely to have read. Cite them.

Part 4: Sequencing and the case-management conference

• Put identification on the Rule 26(f) agenda. The discovery plan must state the parties' views on the subjects and phasing of discovery and on any protective order the court should enter, Fed. R. Civ. P. 26(f)(3). Circulate a proposed identification deadline and a proposed protective order before the conference rather than arguing about them in the abstract afterward.
• Propose one of the four sequencing models. (1) Identification first, then technical discovery; (2) parallel tracks, with non-technical discovery (departure facts, communications, forensic evidence of copying) proceeding at once; (3) staged mutual disclosure, in which the defendant produces the technology corresponding to the identified categories and the plaintiff then refines its list; or (4) no sequencing. Courts adopting the first model describe a "growing consensus," Vesta Corp. v. Amdocs Management Ltd., 147 F. Supp. 3d 1147 (D. Or. 2015); see United Services Automobile Ass'n v. Mitek Systems, Inc., 289 F.R.D. 244 (W.D. Tex. 2013), while others decline to require more before discovery, Nike, Inc. v. Enter Play Sports, Inc., 305 F.R.D. 642 (D. Or. 2015). The FJC guide recommends against a general stay of all discovery.
• Get it into the scheduling order. Ask the court to fix the identification deadline, the standard and procedure for amendments, and the no-renumbering rule in the order under Fed. R. Civ. P. 16(b), which can then be modified only for good cause.
• In the Ninth Circuit, frame the request as case management. For a DTSA-only case, Quintara bars treating the identification as a threshold merits gate or striking secrets under Rule 12(f), but it preserves the court's power to manage discovery and to order that a trade secret be revealed "only in a specified way" under Rule 26(c)(1)(G). For a California-law claim, cite § 2019.210 and the federal decisions applying it, beginning with Computer Economics, Inc. v. Gartner Group, Inc., 50 F. Supp. 2d 980 (S.D. Cal. 1999).
• (Owner) Seek expedited discovery only for what the emergency needs. Rule 26(d)(1) bars discovery before the Rule 26(f) conference absent a stipulation or order. Most courts ask whether good cause exists, weighing the need for early discovery against the prejudice to the responding party, Semitool, Inc. v. Tokyo Electron America, Inc., 208 F.R.D. 273 (N.D. Cal. 2002), and they look hard at the breadth of what is requested, Qwest Communications International, Inc. v. WorldQuest Networks, Inc., 213 F.R.D. 418 (D. Colo. 2003). Some apply a stricter four-factor test that resembles the injunction standard, Notaro v. Koch, 95 F.R.D. 403 (S.D.N.Y. 1982). Tie each request to the preliminary injunction hearing.
• Use early Rule 34 requests. Document requests may be delivered more than 21 days after service of the summons and complaint and are treated as served at the first Rule 26(f) conference, Fed. R. Civ. P. 26(d)(2). That starts the response clock without a motion.
• Argue proportionality with the identification in hand. Rule 26(b)(1) limits discovery to what is relevant and proportional. There is no absolute privilege for trade secrets in discovery, Federal Open Market Committee v. Merrill, 443 U.S. 340 (1979); the party resisting must show that the information is a trade secret and that disclosure would harm it, and the requesting party must then show relevance and need, Centurion Industries, Inc. v. Warren Steurer & Associates, 665 F.2d 323 (10th Cir. 1981); In re Remington Arms Co., 952 F.2d 1029 (8th Cir. 1991). Courts then protect what must be produced by limiting who sees it, as with the secret formulas ordered produced in Coca-Cola Bottling Co. of Shreveport, Inc. v. Coca-Cola Co., 107 F.R.D. 288 (D. Del. 1985).
• Plan for the referee. Nondispositive discovery disputes usually go to a magistrate judge under 28 U.S.C. § 636(b)(1)(A), whose orders are set aside only if clearly erroneous or contrary to law on timely objection, Fed. R. Civ. P. 72(a). In technically dense cases, consider proposing a special master under Fed. R. Civ. P. 53, with fees allocated in the appointing order.
• Stipulate where you can. Parties may modify discovery procedures by written stipulation, Fed. R. Civ. P. 29. A stipulated forensic protocol and identification schedule entered as an order is faster, cheaper, and more durable than one imposed after motion practice.

Notes. The judge's first impression of the case forms here. The party that arrives with a proposed protective order, a proposed forensic protocol, and a concrete sequencing proposal usually frames the case. For discovery planning generally, see Rule 26 Initial Disclosures and Discovery Planning: A Practical Checklist and A Practical Discovery Refresher: Mastering the Tools, Rules, and Pitfalls of Federal Civil Litigation.

Part 5: For the accused, testing the identification

• (Accused) Ask early and in writing. Serve an interrogatory asking for each asserted secret, or move for an order requiring a standalone identification, before producing your own technical documents. Keep producing non-technical discovery; courts lose patience with defendants who treat the demand as a stay.
• (Accused) Grade each number against the two-part test. Send a numbered deficiency letter that explains, entry by entry, what is missing (a value, a step, a file path, the combination logic) rather than calling the whole list "vague." Specific objections get specific answers; global ones get a global shrug.
• (Accused) Use experts carefully. A declaration from a qualified engineer that an entry cannot be distinguished from published practice is the usual support for a motion to compel a better identification. Where credible experts on both sides can understand the designation, however, courts generally let discovery proceed, Advanced Modular Sputtering, 132 Cal. App. 4th 826.
• (Accused) Do not ask for relief the courts will not give. In the Ninth Circuit, a Rule 12(f) motion to strike secrets is the wrong tool after Quintara, and summary judgment on particularity before any discovery may be premature, InteliClear, 978 F.3d 653; see Fed. R. Civ. P. 56(d).
• (Accused) Map each number to the public domain. Build a chart linking each entry to patents, papers, product literature, and the plaintiff's own disclosures. It becomes the backbone of the summary judgment motion and of any later fee motion.
• (Accused) Build the independent-development record. Preserve version-control history, lab notebooks, design reviews, and the dates and sources of the accused work. Expect to produce relevant research and development, but ask the court to limit production to the projects at issue; one court let a defendant withhold monthly research reports that dealt only with budgets and headcount, Convolve, Inc. v. Compaq Computer Corp., 223 F.R.D. 162 (S.D.N.Y. 2004).
• (Accused) Probe the plaintiff's basis, within limits. Discovery into prior enforcement of the same secrets and into the pre-suit investigation is often allowed in part. An employer's claim of privilege and work-product protection for its investigation of departing employees failed where it did not show, document by document, that the materials were prepared because of anticipated litigation rather than as routine practice, Navigant Consulting, Inc. v. Wilkinson, 220 F.R.D. 467 (N.D. Tex. 2004).
• (Accused) Track fee exposure from day one. The DTSA permits a fee award to the prevailing party when a misappropriation claim is made in bad faith, which may be established by circumstantial evidence, 18 U.S.C. § 1836(b)(3)(D). The Sixth Circuit affirmed a bad-faith fee award under Michigan's version of the uniform act after an employer sued its former employee and his new employer and then dropped the case following discovery, Degussa Admixtures, Inc. v. Burnett, 277 F. App'x 530 (6th Cir. 2008). Keep the record that shows the claim was thin from the start.

Notes. The goal is a list the defendant can litigate against, not a list that never arrives. A defendant that forces a precise identification gets a narrower case and a cleaner summary judgment motion; a defendant that stalls gets a carefully amended list and an impatient judge. For the motions themselves, see the Motion Practice Toolkit: Dispositive, Discovery, and In Limine Motions.

Part 6: The two-tier protective order

• Start from a model order and tailor it. The Northern District of California's model order for cases involving patents, highly sensitive information, and trade secrets is the usual base. Good cause requires a particularized showing of harm once a designation is challenged, Phillips ex rel. Estates of Byrd v. General Motors Corp., 307 F.3d 1206 (9th Cir. 2002); Pansy v. Borough of Stroudsburg, 23 F.3d 772 (3d Cir. 1994), and restrictions on material obtained only through discovery do not offend the First Amendment, Seattle Times Co. v. Rhinehart, 467 U.S. 20 (1984).
• Define the tiers by objective categories. "Confidential" for material the parties' own personnel may see; "Highly Confidential, Attorneys' Eyes Only" for current formulas, process parameters, pricing, costs, customer terms, and non-public technical plans; and a separate source code tier. Courts approve the second tier on a showing of competitive harm, Layne Christensen Co. v. Purolite Co., 271 F.R.D. 240 (D. Kan. 2010); MGP Ingredients, Inc. v. Mars, Inc., 245 F.R.D. 497 (D. Kan. 2007).
• Decide who may see attorneys' eyes only material. In-house lawyers involved in "competitive decisionmaking" (advising on pricing, product design, and similar decisions made in light of a competitor's information) are usually excluded, and the test is the person's actual role, not the title, U.S. Steel Corp. v. United States, 730 F.2d 1465 (Fed. Cir. 1984); Brown Bag Software v. Symantec Corp., 960 F.2d 1465 (9th Cir. 1992).
• Set the expert-disclosure procedure. Require the expert's name, CV, current employer, and recent engagements, with a short objection window before any disclosure. Courts split on experts who consult for competitors; compare Layne Christensen with Streck, Inc. v. Research & Diagnostic Systems, Inc., 250 F.R.D. 426 (D. Neb. 2008).
• Address the accused employee expressly. Most courts put the burden on the owner to show good cause for excluding the individual defendant and then tailor access: review at counsel's office, no copies, no screenshots, and only the secrets he is accused of taking.
• Add a prosecution or competitive-decision bar where patent work overlaps. The bar's triggering information, prohibited activities, duration, and subject matter must reasonably reflect the risk, and exemptions are decided counsel by counsel, In re Deutsche Bank Trust Co. Americas, 605 F.3d 1373 (Fed. Cir. 2010).
• Write the source code provisions: a standalone, non-networked review computer, a sign-in log, no recording devices, page limits on printouts, and rules for using printouts at depositions and in filings.
• Get a Rule 502(d) order. It makes production in this case a non-waiver in any other federal or state proceeding, Fed. R. Evid. 502(d). The discovery plan should say whether the parties want their clawback agreement entered as an order, Rule 26(f)(3)(D), and Rule 26(b)(5)(B) supplies the procedure for sequestering clawed-back material.
• Build in the § 1835(b) safeguard. A court may not authorize disclosure of information the owner asserts is a trade secret without first allowing the owner to explain, under seal, its interest in keeping it confidential, 18 U.S.C. § 1835(b). Add a notice-before-disclosure clause so that nobody is surprised.
• Cover third parties. Let subpoenaed nonparties designate under the order; a court may quash or modify a subpoena that requires disclosing a trade secret, Fed. R. Civ. P. 45(d)(3)(B)(i).
• Keep protection and sealing separate. The protective order governs what the parties exchange; sealing is decided by the court, the parties' agreement does not control, Procter & Gamble Co. v. Bankers Trust Co., 78 F.3d 219 (6th Cir. 1996), and a blanket order does not excuse a particularized showing when a document is challenged, Foltz v. State Farm Mutual Automobile Insurance Co., 331 F.3d 1122 (9th Cir. 2003).
• Designate with discipline and plan the ending. Block-designating whole productions invites challenges and undercuts the designations that matter. Include return-or-destroy certifications and continuing jurisdiction to enforce the order after judgment.

Notes. For the negotiation itself, use the Protective Order and Sealing Checklist: A Practical Checklist and Negotiating a Protective Order and Filing Under Seal: A Practical Guide.

Part 7: Forensic preservation and inspection

• (Owner) Show "something more" than suspicion. Rule 34(a)(1)(A) allows a party to inspect, copy, test, or sample electronically stored information, but courts guard against undue intrusion and require evidence that a device was used to take or transfer the information, or discrepancies in the other side's production, John B. v. Goetz, 531 F.3d 448 (6th Cir. 2008); In re Ford Motor Co., 345 F.3d 1315 (11th Cir. 2003). One court, calling forensic examination a drastic step, refused to order inspection of computers in China during discovery limited to the statute of limitations, Motorola Solutions, Inc. v. Hytera Communications Corp., 314 F. Supp. 3d 931 (N.D. Ill. 2018).
• Choose the examiner and the model. The common model has three steps: a neutral images the devices and reports what was imaged; the neutral recovers responsive files and gives them first to the producing party's counsel; and that counsel reviews for privilege and responsiveness and produces with a log. Ameriwood Industries, Inc. v. Liberman, 2006 WL 3825291 (E.D. Mo. Dec. 27, 2006); Genworth Financial Wealth Management, Inc. v. McMullan, 267 F.R.D. 443 (D. Conn. 2010); see also Playboy Enterprises, Inc. v. Welles, 60 F. Supp. 2d 1050 (S.D. Cal. 1999); Simon Property Group L.P. v. mySimon, Inc., 194 F.R.D. 639 (S.D. Ind. 2000).
• Write the protocol, not just the order. List the devices and accounts, the date range, the hash list of the owner's files, search terms for near-duplicates, and the artifact categories (USB connections, link files, cloud sync records, deletion and wiping traces). Then say what is reported to whom and at which confidentiality tier, the deadlines, how the owner's files will be removed from the defendant's systems and certified, who pays, and when the images are destroyed.
• Search by hash first. A hash search finds exact copies of the owner's files without anyone reading the employee's personal material, which answers the strongest privacy objection before it is made.
• Allocate costs on purpose. The requesting party often pays, but courts shift costs to the party whose conduct made the examination necessary: 80 percent to the defendants in Genworth, and imaging to one side and analysis to the other in Covad Communications Co. v. Revonet, Inc., 258 F.R.D. 5 (D.D.C. 2009).
• (Owner) Do not subpoena the email provider for contents. The Stored Communications Act bars providers from disclosing message contents in response to a civil subpoena, 18 U.S.C. § 2702; Crispin v. Christian Audigier, Inc., 717 F. Supp. 2d 965 (C.D. Cal. 2010), and an overbroad subpoena can expose the issuing party to liability, Theofel v. Farey-Jones, 359 F.3d 1066 (9th Cir. 2004). Serve a Rule 34 request on the party who controls the account, Flagg v. City of Detroit, 252 F.R.D. 346 (E.D. Mich. 2008). Non-content records are treated differently: one court quashed a subpoena to a wireless carrier as to text message contents but enforced it for the remaining records, Mintz v. Mark Bartelstein & Associates, Inc., 885 F. Supp. 2d 987 (C.D. Cal. 2012).
• (Accused) Offer a privacy-protective alternative. Hash-only searching by a neutral, date limits, and a privilege and privacy review by your own counsel first are hard for a court to refuse. Courts do cut back requests for personal devices that are disproportionate to the need; see FCA US LLC v. Bullock, 329 F.R.D. 563 (E.D. Mich. 2019).
• Plan early for devices and data abroad. Discovery of information located overseas calls for a particularized comity analysis, and the Hague Evidence Convention is an option rather than a mandatory first step, Société Nationale Industrielle Aérospatiale v. United States District Court, 482 U.S. 522 (1987). Foreign data-protection and blocking laws can delay a protocol for months, and depositions abroad follow Fed. R. Civ. P. 28(b).
• Make the evidence admissible as you go. Keep a chain-of-custody log for every device and image. Data copied from a device and authenticated by a process of digital identification, such as hash comparison, can be self-authenticating with a qualified person's certification, Fed. R. Evid. 902(14); logs kept in the regular course of business may qualify under Fed. R. Evid. 803(6); and large volumes of log data can reach the jury through a summary, Fed. R. Evid. 1006.

Notes. Negotiate the forensic protocol alongside the ESI protocol; see Negotiating an ESI Protocol and Managing E-Discovery Costs. Where the evidence lives in home offices and personal clouds, see Trade Secrets in the Age of Remote Work and Cloud Computing.

Part 8: Emergency relief and the seizure remedy

• (Owner) Ask for the narrowest order that solves the problem. A temporary restraining order limited to preservation and return of identified files can rest on the files themselves; the FJC guide treats preservation-and-return orders as the narrow exception to a full identification. An injunction against use or disclosure cannot: the order must identify the information it protects, Mallet & Co. v. Lacayo, 16 F.4th 364 (3d Cir. 2021), and state its terms specifically, Fed. R. Civ. P. 65(d).
• (Owner) Treat ex parte seizure as a last resort. The court must find, among other things, that a Rule 65 order would be inadequate because the defendant would evade it, that the application describes the matter to be seized with reasonable particularity, and that the defendant would destroy or hide the material if given notice. The order must provide for the narrowest seizure necessary, a hearing must follow within seven days, the applicant must give security, and damages for a wrongful seizure are not limited by that security, 18 U.S.C. § 1836(b)(2).
• Expect the court to choose a noticed alternative. In Broker Genius, the court denied an ex parte request, held a hearing with counsel for all sides the same day, and entered a TRO barring the defendants from accessing or disclosing the plaintiff's proprietary information; in Henry Schein, Inc. v. Cook, 191 F. Supp. 3d 1072 (N.D. Cal. 2016), the court ordered preservation but refused ex parte mirror imaging of the employee's personal devices.
• Respect the employment limits. A DTSA injunction may not prevent a person from entering into an employment relationship; any conditions must rest on evidence of threatened misappropriation and not merely on what the person knows, and they may not conflict with state law prohibiting restraints on a lawful profession, trade, or business, 18 U.S.C. § 1836(b)(3)(A)(i).
• (Owner) Do not walk into the hearing with a thin identification. After expedited discovery, a district court denied an employer's motion in part because it had not sufficiently identified its secrets, and the Seventh Circuit affirmed because the employer had an adequate remedy at law, DM Trans, LLC v. Scott, 38 F.4th 608 (7th Cir. 2022). The ordinary four-part standard governs, Winter v. Natural Resources Defense Council, Inc., 555 U.S. 7 (2008).
• Address security and appeal. Rule 65(c) conditions interim relief on security in an amount the court considers proper, and Mallet sent the amount back for a case-specific analysis. Orders granting or refusing injunctions are immediately appealable, 28 U.S.C. § 1292(a)(1).
• (Accused) Take the air out of the motion. Offer a stipulated preservation order, delivery of devices to a neutral, and an interim two-tier protective order. Courts rarely give a movant more than the defendant has already offered in writing.

Notes. For the application itself, use the Preliminary Injunction and TRO Application Checklist: A Practical Checklist; for injunction briefing and head-start analysis, see the Trade Secret Remedies Toolkit: Damages Models, Head Start Analyses, and Injunction Briefing.

Part 9: Written discovery, depositions, and experts

• Serve the identification interrogatory early and contention interrogatories later. Use Rule 33 for the identification when no standalone disclosure is ordered. Contention interrogatories are proper, but the court may defer answers until designated discovery is complete, Rule 33(a)(2).
• Organize document requests by numbered secret. The owner asks for the accused product's development history, the employee's onboarding, the defendant's searches for the owner's files, and communications mentioning the owner. The accused party asks for each secret's development records, protective measures, prior disclosures, and prior enforcement. See Rule 34.
• Use requests for admission to shrink the fight. Authenticity of images and logs, dates of key events, and the public availability of particular documents are good candidates, Fed. R. Civ. P. 36.
• Draft Rule 30(b)(6) topics around the numbers. For the defendant: the accused product's timeline, sources consulted, clean-room procedures, onboarding, and searches performed. For the owner: development of each numbered secret, who knew it, the measures protecting it, prior disclosures, and the basis for believing it was taken. The parties must now confer in good faith about the matters for examination, Fed. R. Civ. P. 30(b)(6), and the FJC guide suggests sending pure contention questions to interrogatories instead.
• Subpoena nonparties narrowly. The new employer (if not a party), cloud and phone providers (for non-content records), and, only when necessary, customers. Tie each request to a numbered secret and extend the protective order to the producing nonparty, Fed. R. Civ. P. 45.
• (Accused individual) Decide about the Fifth Amendment before the deposition. The privilege can be invoked in a civil case, but silence may support an adverse inference, Baxter v. Palmigiano, 425 U.S. 308. Whether to stay the civil case for a parallel criminal investigation is decided case by case, Keating v. Office of Thrift Supervision, 45 F.3d 322 (9th Cir. 1995).
• Tie every expert opinion to a number. Technical experts address secrecy and use, forensic experts address what was copied and where it went, and damages experts address harm by secret. Each must satisfy Fed. R. Evid. 702, which since 2023 requires the proponent to show admissibility more likely than not, and the gatekeeping framework of Daubert v. Merrell Dow Pharmaceuticals, Inc., 509 U.S. 579 (1993). An expert who opines about "the trade secrets" collectively invites exclusion.

Notes. For corporate depositions, use the Rule 30(b)(6) Deposition Preparation Checklist: A Practical Checklist; for experts, the Expert Deposition Preparation Checklist: A Practical Checklist; and for damages discovery, the Trade Secret Damages and Remedies Checklist: A Practical Checklist.

Part 10: Spoliation

• Know the structure of Rule 37(e). It applies to electronically stored information that should have been preserved, was lost because a party failed to take reasonable steps, and cannot be restored or replaced. Prejudice permits measures no greater than necessary to cure it; only a finding of intent to deprive permits an adverse presumption, an adverse-inference instruction, dismissal, or default, Fed. R. Civ. P. 37(e).
• Prove the deletion forensically before you move. Wiping-tool artifacts, overwrite patterns, clock changes, and gaps in sync logs persuade; suspicion does not.
• Ask for what the record supports. Courts have given a permissive adverse-inference instruction and awarded fees when departing employees deleted emails, Rimkus Consulting Group, Inc. v. Cammarata, 688 F. Supp. 2d 598 (S.D. Tex. 2010); measured sanctions by the cost of the misconduct rather than the size of the claim, Klipsch Group, Inc. v. ePRO E-Commerce Ltd., 880 F.3d 620 (2d Cir. 2018); and entered default in Organik Kimya and OmniGen. Fees awarded under the court's inherent power must be compensatory and causally tied to the misconduct, Goodyear Tire & Rubber Co. v. Haeger, 581 U.S. 101 (2017).
• (Owner) Do not ask the inference to carry the case. In Epic Systems Corp. v. Tata Consultancy Services Ltd., Nos. 19-1528 & 19-1613 (7th Cir. Aug. 20, 2020, amended Nov. 19, 2020), an adverse-inference instruction could not by itself support damages for use of information the evidence did not show was taken.
• (Owner) Look in the mirror. A reimaged laptop or a log you let expire is your own Rule 37(e) problem.

Part 11: Amending the identification

• (Owner) Show good cause. Courts weigh diligence, prejudice, whether the amendment rests on newly learned facts, and how late it comes, Neothermia Corp. v. Rubicor Medical, Inc., 345 F. Supp. 2d 1042 (N.D. Cal. 2004); Perlan recognized that discovery revealing additional misappropriated secrets may supply good cause.
• Mind the scheduling order and the exclusion rule. A late amendment must also satisfy Rule 16(b)(4), and information a party failed to disclose or supplement as Rule 26(e) requires can be excluded unless the failure was substantially justified or harmless, Fed. R. Civ. P. 37(c)(1).
• Never renumber. Mark a withdrawn secret "No. 6: no longer asserted" and add new secrets at the end, so that No. 14 means the same thing in every transcript, report, and order.
• (Owner) Drop weak secrets freely. Withdrawals are almost always allowed, and every weak secret you keep is a summary judgment win you hand the defendant.
• (Accused) Build the prejudice record. Document the depositions, expert work, and motion practice keyed to the earlier list; prejudice is the factor that defeats late amendments.

Part 12: Summary judgment, trial, and after

• (Accused) Move secret by secret. Show that each numbered item is public, unused, independently developed, or never identified with the specificity a fact finder needs. See Imax; IDX; NEXT Payment Solutions; Givaudan Fragrances Corp. v. Krivda, 639 F. App'x 840 (3d Cir. 2016); Kuryakyn Holdings, LLC v. Ciro, LLC, 242 F. Supp. 3d 789 (W.D. Wis. 2017). The owner bears the burden of proving misappropriation even when the defendant offers evidence of independent development, Penalty Kick Management Ltd. v. Coca Cola Co., 318 F.3d 1284 (11th Cir. 2003).
• (Owner) Answer with a declaration that walks through each number, as the plaintiff did in InteliClear, plus a declaration under Rule 56(d) if discovery is incomplete.
• Narrow the list before trial. Courts routinely require it, and a theory that was never in the identification can be excluded in limine, as the Seventh Circuit approved in NEXT Payment Solutions.
• Build the instructions and verdict form around the numbers. Use a special verdict or written questions secret by secret, Fed. R. Civ. P. 49, and propose tailored instructions on time, Fed. R. Civ. P. 51. The FJC guide cautions against instructing jurors on the six Restatement factors as though each were an element.
• Plan courtroom confidentiality before the pretrial conference. Use code names with a juror key, show sealed exhibits on juror monitors only, cluster any closed-courtroom testimony so the room is cleared once, and remind jurors and court staff of their obligations (federal employees may not disclose confidential information learned on the job, 18 U.S.C. § 1905). Material tied to the merits needs compelling reasons for sealing in the Ninth Circuit, Kamakana v. City & County of Honolulu, 447 F.3d 1172 (9th Cir. 2006); Center for Auto Safety v. Chrysler Group, LLC, 809 F.3d 1092 (9th Cir. 2016), and faces a strong presumption of access elsewhere, Lugosch v. Pyramid Co. of Onondaga, 435 F.3d 110 (2d Cir. 2006); Shane Group, Inc. v. Blue Cross Blue Shield of Michigan, 825 F.3d 299 (6th Cir. 2016). Genuine trade secrets usually clear the bar, Apple Inc. v. Psystar Corp., 658 F.3d 1150 (9th Cir. 2011), as can detailed product-specific financial information, Apple Inc. v. Samsung Electronics Co., 727 F.3d 1214 (Fed. Cir. 2013).
• Preserve the judgment-as-a-matter-of-law motion. Move at the close of the evidence, secret by secret, so the renewed motion is available after the verdict, Fed. R. Civ. P. 50.
• After the verdict, keep the numbers. Any permanent injunction should identify the protected secrets in a sealed attachment to the order (Mallet; Rule 65(d)); exhibits and transcripts that reveal the secrets should stay sealed; and any damages award should be traceable to specific secrets. A plaintiff that cannot articulate its secrets loses even after winning the facts, as in TLS Management & Marketing Services, LLC v. Rodriguez-Toledo, 966 F.3d 46 (1st Cir. 2020).

Part 13: The supplier and customer case

• (Owner) Prove what you disclosed and when. In a supplier, co-packer, or joint-development dispute, the identification must match what was actually shared under the agreement. A plaintiff lost at summary judgment where it failed to describe its claimed method with particularity both when it disclosed it and in the litigation, and where the information was public and unused, Big Vision Private Ltd. v. E.I. DuPont de Nemours & Co., 1 F. Supp. 3d 224 (S.D.N.Y. 2014).
• Separate the customer's secret from the supplier's own know-how. The supplier's records will mix its general process skill and other customers' confidential processes with the plaintiff's information; the identification must draw that line, and the protective order must protect the third-party information, usually through redaction and a separate designation.
• (Accused) Preserve the pre-relationship record the day the dispute surfaces. Dated batch records, specifications, and work for earlier customers are the best evidence of independent development.
• Read the confidentiality agreement's definitions, marking requirements, and any residuals clause before anyone characterizes what was protected. The Drafting a Nondisclosure Agreement Checklist: A Practical Checklist explains how those clauses work.

Key authorities at a glance

This document is general information, not legal advice for any particular situation; the law changes, and the facts matter.

Related Documents

Related Articles

• Identifying Trade Secrets in Litigation: Reasonable Particularity, Sequencing Discovery, and Protecting the Secret While You Sue: the doctrine behind every item on this list.
• Trade Secret Damages and Remedies: Unjust Enrichment, Reasonable Royalties, Injunctions, and Exemplary Awards: why the numbered identification drives apportionment and injunction scope.
• Litigation Holds, Spoliation, and Rule 37(e): Preserving Electronic Evidence Before It Costs You the Case: preservation duties and sanctions in depth.
• Protective Orders, Confidentiality Designations, and Sealing: Secrecy and Its Limits in Federal Court: the law behind Parts 6 and 12.
• Trade Secrets in the Age of Remote Work and Cloud Computing: where the evidence lives now.

Related Guides

• Managing Discovery in a Trade Secret Case: A Practical Guide: the same process told step by step.
• Trade Secret Misappropriation Litigation Under the Defend Trade Secrets Act: A Practical Guide: the full life cycle of a DTSA case.
• Negotiating a Protective Order and Filing Under Seal: A Practical Guide: drafting and defending the order.
• Taking and Defending an Expert Deposition: A Practical Guide: the technical, forensic, and damages experts.

Related Checklists

• Employee Departure Trade Secret Protection Checklist: A Practical Checklist: the employer's offboarding steps that create the evidence.
• Litigation Hold and Evidence Preservation Checklist: A Practical Checklist: holds, collection, and preservation for both sides.
• Trade Secret Audit Checklist: A Practical Checklist: the inventory that makes a fast identification possible.
• Trade Secret Damages and Remedies Checklist: A Practical Checklist: the remedies phase, secret by secret.
• Expert Deposition Preparation Checklist: A Practical Checklist: preparing and examining experts.
• Preliminary Injunction and TRO Application Checklist: A Practical Checklist: emergency relief papers.

Related Toolkits

• Trade Secret Litigation Toolkit: Identification Statements, Two-Tier Protective Orders, and Forensic Protocols: the templates this checklist refers to.
• Trade Secret Remedies Toolkit: Damages Models, Head Start Analyses, and Injunction Briefing: remedies templates and injunction briefing.
• Confidentiality Toolkit: Protective Orders, Designation Challenges, and Sealing Motions: designation challenges and sealing motions.
• Trade Secret Protection Toolkit: Building and Defending a Confidentiality Program: the reasonable-measures record every identification depends on.