SS&C Technologies Holdings, Inc. v. Arcesium LLC — Second Circuit Reverses Dismissal of Trade Secret Claims, Holding Software Trade Secrets Need Not Be Pleaded with Exact Specificity

Background

SS&C Technologies Holdings, Inc. and Advent Software, Inc. (together, SS&C) compete with Arcesium LLC in financial technology. SS&C's flagship product, Geneva, is portfolio accounting software alleged to contain trade secrets including its executable version, integration layer with application programming interfaces, and data model. Advent developed Geneva and required customers to sign confidentiality and non-disclosure agreements. In 2015 Advent and Arcesium entered a five-year Hosted Reseller Agreement (HRA) letting Arcesium sublicense Geneva solely for customer support while prohibiting use of Geneva to build competing products or disclose confidential information. SS&C acquired Advent in 2015 and inherited the HRA.

While licensed, Arcesium developed its own competing software, Trinity, in under three years—far faster than the decades Advent took to build Geneva. Internal emails showed employees discussing removal of Geneva references from Trinity documents and acknowledging 'IP constraints' on Geneva's loader formats. After the HRA expired in January 2020, Arcesium launched Nautilus, allegedly to keep accessing Geneva without consent, and marketed Trinity as able to mimic Geneva's functionality. SS&C sued in the Southern District of New York under the Defend Trade Secrets Act (DTSA), 18 U.S.C. § 1836 et seq., and state law.

The district court (Reif, J.) granted Arcesium's motion to dismiss, concluding the complaint adequately alleged trade secrets in Geneva but not facts supporting a reasonable inference of misappropriation, and it credited Arcesium's interpretation of internal emails attached to the motion. SS&C appealed, also challenging denial of its motion to vacate and amend.

The Court’s Holding

Reviewing de novo, the Second Circuit reversed. On trade-secret existence, the complaint identified specific items—Geneva's executable version, integration layer, and data model—and explained their functions, enough to give Arcesium notice of the bases for the claim; the court declined to impose a general specificity rule requiring exact definitions. It also rejected the argument that sharing Geneva with licensed customers destroyed secrecy: providing alleged trade secrets to third parties does not undermine a claim where disclosure was under an understanding of confidentiality. SS&C alleged access was limited to licensed customers bound by non-disclosure agreements and that Geneva derived independent economic value from its secrecy.

On misappropriation, the court adopted a broad definition of 'use'—any exploitation of the trade secret likely to injure the owner or enrich the defendant, including relying on it to accelerate research and development. SS&C alleged Arcesium used Geneva's loader formats, data models, and integration layer to develop Trinity and Nautilus, and used Geneva's functions to solve problems in its own platform. With supporting circumstances such as Trinity's accelerated timeline and Arcesium's solicitation of Geneva customers by promising Trinity could mimic Geneva, these allegations plausibly stated a claim for use after acquisition by improper means.

The court also held the district court engaged in impermissible fact-finding by crediting Arcesium's explanations of its internal emails over the complaint's allegations. Courts may consider documents incorporated by reference on a Rule 12(b)(6) motion, but must not accept as true every word of a defendant's unilateral, self-serving writings. The court reversed and remanded, did not decide the motion to vacate and amend as moot, and expressed no view on the ultimate merits.

Key Takeaways

• A DTSA complaint need only identify alleged trade secrets with enough specificity to give the defendant notice of the bases for the claim; no general rule requires exact definitions.
• Providing trade secrets to third parties under confidentiality obligations does not defeat a trade-secret claim.
• 'Use' under the DTSA is broad, including relying on a trade secret to accelerate development of a competing product.
• On a motion to dismiss, courts must not credit a defendant's self-serving interpretation of incorporated documents over the complaint's allegations.
• The reversal was pleading-stage only; misappropriation must still be proven at later stages.

Why It Matters

The decision clarifies DTSA pleading standards for software trade secrets in the Second Circuit, confirming that plaintiffs need not spell out exact trade-secret details to survive dismissal if defendants are on notice. It matters for financial technology and software companies whose trade secrets are complex technical information, and it cautions district courts against weighing evidence at the pleading stage.