Swan Bitcoin escalates legal battle over failed Tether mining deal, seeks records from Cantor Fitzgerald and Howard Lutnick
Swan Bitcoin has moved to pull Wall Street deeper into its legal fight over a collapsed Bitcoin mining partnership tied to Tether, asking a New York court for permission to subpoena Cantor Fitzgerald and its former chief executive, now US commerce secretary, Howard Lutnick.
In a filing submitted Monday to the US District Court for the Southern District of New York, Swan argued that Cantor Fitzgerald and Lutnick may possess documents and communications central to its dispute with several former senior employees and their new venture, Proton Management.
Subpoenas aimed at uncovering details of 2040 Energy
At the core of the conflict is 2040 Energy, a Bitcoin mining project that Swan says it developed in cooperation with Tether. Swan claims that the venture was part of its broader mining business and that Tether’s subsequent shift to a different partner, Proton Management, was triggered by actions of ex-Swan executives.
The company told the court it believes Cantor Fitzgerald and Lutnick could hold or have access to information about the sale or transfer of Swan’s mining assets to a Tether subsidiary, including materials related to 2040 Energy. According to the filing, Cantor’s advisory role to Tether and its involvement in Bitcoin mining place it “in the vicinity” of documents and negotiations that may shed light on what happened to Swan’s former mining operations.
Swan is not accusing Cantor Fitzgerald or Lutnick of any legal violations in this particular application. Instead, it is asking the court to compel them to produce records as third parties that might help determine whether Swan’s trade secrets or confidential strategies were misused when Proton Management entered the picture.
Former executives accused of “rain and hellfire” strategy
The subpoena request grows out of a lawsuit Swan filed in September 2024 against several of its former employees, including former head of business development Michael Holmes and former chief investment officer Raphael Zagury.
In that complaint, Swan alleged that the executives abruptly resigned, took internal and proprietary documents with them, and then launched Proton Management within days. Swan claims Holmes and Zagury orchestrated what it calls the “rain and hellfire” plan-a strategy the company describes as a coordinated effort to both damage Swan’s existing relationship with Tether and redirect its mining business to their new venture.
Swan says that after leaving, the group persuaded Tether to abandon Swan as a partner and instead support Proton Management in a competing mining operation that effectively replaced 2040 Energy under new control. Zagury is now described as Proton’s chief executive in Swan’s court filings.
Defendants push back: Who really owned 2040 Energy?
The defendants have firmly rejected Swan’s narrative. Their central argument is that 2040 Energy was never Swan’s property to begin with because Tether fully funded the venture. If Tether provided all the capital and retained control, they contend, then shifting that business to Proton Management would not amount to stealing Swan’s assets.
This dispute over ownership and control is crucial. If 2040 Energy is seen as a Swan-originated, Swan-controlled venture, Swan’s claims of misappropriation and interference look far stronger. If instead it is treated as a Tether-driven project with Swan acting more as a service provider, then Tether’s decision to move on and hire former Swan staff could be painted as a tough but legitimate business choice.
The case against Proton Management and the former employees remains active, with no final ruling yet on the competing accounts.
Cantor’s sudden silence raises suspicions for Swan
Swan’s move to draw Cantor Fitzgerald into the discovery process is rooted not only in Cantor’s advisory role to Tether but also in Swan’s direct interactions with the firm in 2024.
Swan chief executive Cory Klippsten says he met with Lutnick in June 2024, at a time when Swan was exploring the possibility of an initial public offering. According to Swan, Cantor Fitzgerald was eager to act as the lead investment bank on a potential listing. During those discussions, Swan claims it shared a “highly confidential and proprietary slide deck” and gave Cantor detailed insights into its mining strategy and facilities.
Swan alleges that these talks continued until a key turning point: the departure of the former executives and the contentious transfer of mining assets associated with Tether. After that, Klippsten says Cantor abruptly stopped communicating with Swan. In his account, Cantor “broke off contact” without explanation, leaving Swan concerned that the information it had shared might have intersected with the later realignment of Tether’s mining partnerships.
This pattern of engagement and sudden silence is one reason Swan insists that Cantor’s internal records-emails, meeting notes, presentations, and advisory documents-could reveal who knew what, and when, about Tether’s move away from Swan and toward Proton.
Political overtones: Lutnick under scrutiny as commerce secretary
The filing has drawn additional public attention because of Howard Lutnick’s current role as US secretary of commerce. While Swan does not allege any wrongdoing by Lutnick in this case, it specifically names him as a potential holder of relevant records tied to the mining venture and Cantor’s advisory relationship with Tether.
Lutnick has already faced questioning from Democratic lawmakers, including Senator Elizabeth Warren, over his past ties to Tether and whether those connections might create conflicts of interest in his government post. Swan’s legal push, by dragging his name and former firm into a private commercial dispute, adds another layer of complexity to an already sensitive political and regulatory storyline around Tether’s operations and influence.
The case therefore sits at the intersection of corporate litigation, digital asset infrastructure, and Washington’s evolving stance toward crypto-linked financial players.
Why Tether-linked mining deals are so contentious
The controversy around Swan, Proton, and 2040 Energy illustrates the growing strategic importance of Bitcoin mining deals backed by major stablecoin issuers and liquidity providers like Tether.
Mining partnerships are no longer just about racks of hardware and cheap electricity. They are deeply entangled with questions of data center ownership, access to energy contracts, geographic diversification, and control over future hash rate. For a company like Tether, which sits at the center of crypto’s liquidity flows, the ability to directly or indirectly influence mining capacity can be seen as part of a long-term strategy to anchor its position in the Bitcoin ecosystem.
That, in turn, raises the stakes of any dispute over who originated a mining venture, who contributed the intellectual property, and who had the right to redirect or restructure the project. Swan’s lawsuit is effectively arguing that its former executives did not simply move to a new client-they weaponized confidential plans and relationships that belonged to Swan.
The legal battlefield: trade secrets, fiduciary duties, and interference
From a legal perspective, the case touches on several classic corporate law themes applied to a modern crypto context:
– Trade secrets and confidential information: Swan claims internal slide decks, operational data, and strategic plans were taken and then used to compete against the company. The core question is whether these materials meet the legal definition of protectable trade secrets and whether adequate safeguards were in place.
– Duties of loyalty and fiduciary responsibility: Senior executives, especially those in investment and business development roles, often carry heightened obligations to act in the best interest of their employer. If Swan can show that key decisions were made while these executives were still employed, with an eye toward benefiting Proton or Tether instead of Swan, it may strengthen its position.
– Tortious interference: Swan essentially alleges that its former employees interfered with its business relationship with Tether, persuading Tether to terminate or sideline Swan in favor of Proton. Courts typically look at whether such interference was justified, and whether there was a contractual or long-standing relationship at stake.
The subpoenas directed at Cantor Fitzgerald and Lutnick are ultimately about gathering more evidence to support or undermine these theories.
Industry implications: a warning shot for crypto startups
The Swan-Proton-Tether saga offers a cautionary tale to other firms in the crypto and Bitcoin infrastructure space. High-growth startups often depend on a small group of senior employees who have access to the company’s most sensitive information. At the same time, they rely heavily on external partners-exchanges, stablecoin issuers, traditional financial institutions-to fund and scale resource-intensive ventures like mining.
This mix creates fertile ground for disputes when relationships sour. Without carefully drafted contracts that clearly allocate ownership of joint ventures and intellectual property, companies may find themselves arguing after the fact about who truly “owned” a business line.
For startups, the case underscores the importance of:
– Explicitly defining who controls a joint venture and its underlying assets.
– Setting out what happens if a primary funder or partner chooses to walk away.
– Tightening non-compete, non-solicitation, and confidentiality clauses for key personnel, within the limits of applicable law.
– Documenting communications when strategic partners express interest in switching providers or advisers.
Tether’s quiet but central role
While Tether is not the direct target of Swan’s latest court move, it is the gravitational center around which the entire conflict orbits. As the alleged funder of 2040 Energy and the entity that later backed Proton’s operations, Tether’s decisions effectively determined which company controlled a valuable mining relationship.
Swan’s theory paints Tether as a partner that was influenced by former Swan executives to exit the relationship and favor Proton. The defendants, conversely, suggest that Tether retained the power to choose its preferred collaborator from the outset and exercised that choice in a way that did not violate Swan’s rights.
Even without being named as a primary defendant in this specific motion, Tether’s internal communications, decision-making processes, and interactions with Cantor could become crucial pieces of evidence. They may reveal whether the switch from Swan to Proton was an independent commercial judgment or part of the “rain and hellfire” strategy described by Swan.
What comes next in the case
The immediate question for the court is whether to grant Swan’s request to subpoena Cantor Fitzgerald and Howard Lutnick. If approved, Cantor would likely be compelled to search for and produce documents related to:
– Its advisory work with Tether on Bitcoin mining or related ventures.
– Any involvement in the transfer or valuation of mining assets linked to 2040 Energy.
– Communications with Swan, Proton Management, Tether, and the individual defendants during the relevant period.
– Internal discussions triggered by Swan’s aborted IPO plans and the subsequent breakup of the Swan-Tether partnership.
Such discovery could either bolster Swan’s narrative-showing a coordinated transition of business and know-how from Swan to Proton-or undermine it, by demonstrating that Tether and Cantor viewed 2040 Energy as a Tether-owned initiative unaffected by Swan’s internal turmoil.
Meanwhile, the underlying lawsuit against Proton Management and the former executives continues to move through the courts, with both sides preparing to argue over what constitutes fair competition in an industry where relationships, capital, and confidential playbooks are often inseparable.
In sum, what began as a dispute over a single mining venture has now expanded into a multifaceted clash involving a major Wall Street firm, a powerful stablecoin issuer, and a sitting US cabinet member-underscoring how deeply intertwined Bitcoin’s infrastructure has become with traditional finance and national politics.