Liminal Custody partners with Securosys to deliver HSM Vaults for banks and financial institutions
Liminal HSM Vaults combines Securosys HSM technology with Liminal’s MPC-based authorization protocol to deliver stronger security, governance, and operational control for institutional digital asset operations.
Banks and enterprises entering digital assets do not face a technology gap – they face a trust gap. They need infrastructure that carries the same governance, resilience, and control standards they rely on in traditional finance. That is precisely the problem Liminal HSM Vaults solves.
Hardware Security Modules already underpin the security architecture of the world’s largest financial networks – protecting critical operations across payment systems, banking infrastructure, and regulated data environments. The global HSM market is projected to reach $3.4 billion by 2030, growing at a compound annual growth rate (CAGR) of nearly 15 percent, as financial services firms accelerate adoption of hardware-rooted cryptographic security.
That is what makes the partnership between Securosys and Liminal Custody so significant. With Liminal HSM Vaults, the two companies have brought together two complementary strengths: the proven, hardware-backed trust of Securosys Primus HSMs and the distributed authorization capabilities of Liminal’s MPC-based architecture. The result is a modern custody security model designed specifically for institutional digital asset operations.
Through this partnership, Liminal applies hardware-rooted trust to a new asset class while addressing the operational complexity that comes with digital asset workflows. Liminal HSM Vaults helps institutions reduce single points of failure, strengthen key control, and enforce robust internal authorization policies.
“Institutions need infrastructure that mirrors how they actually operate. Liminal HSM Vaults brings together trusted hardware, distributed approvals, and policy-driven controls in a way that helps banks move into digital assets with far greater confidence.” – Mahin Gupta, Founder and CEO, Liminal Custody.
This hybrid model goes beyond simple key storage. Multiple devices, teams, and approval layers participate in transaction flows – including stakeholders across compliance, security, and custody operations. The system then generates cryptographic proofs enabling the HSM to verify that each authorization is valid, correctly issued, and aligned with internal governance controls.
“Financial institutions have trusted HSMs for years because they provide a strong and proven root of trust. What this partnership demonstrates is how that same trust model can be extended into digital assets without compromising on control, assurance, or security discipline.” – Robert Rogenmoser, CEO of Securosys.
For banks, the advantage is clear: they do not need to adopt digital assets through an unfamiliar security framework. They build on proven infrastructure they already know, while gaining the flexibility required for modern authorization and governance.
To see the solution in practice, watch the Liminal HSM Vaults video explainer at https://youtu.be/15LET2kAvk0 .
Liminal HSM Vaults is not a departure from institutional security principles. It is an evolution of them.
Frequently Asked Questions
What is Liminal HSM Vaults?
Liminal HSM Vaults is an institutional digital asset custody solution that combines Securosys Primus Hardware Security Modules (HSMs) – certified to FIPS 140-2 Level 3 (FIPS 140-3 Level 3 in process) – with Liminal Custody’s patent-pending Multi-Party Computation (MPC) authorization protocol. It is designed for banks, custodians, fintechs, and enterprises that require certified key security, policy-driven authorization, and resilient governance for digital asset operations.
How does MPC authorization work with HSM security in Liminal HSM Vaults?
Liminal HSM Vaults uses a defense-in-depth model. The HSM provides hardware-rooted key protection and a certified root of trust, while Liminal’s MPC protocol distributes authorization across multiple parties and devices. The system generates cryptographic proofs that the HSM validates before any sensitive operation proceeds, ensuring no single point of failure exists in the authorization chain.
Who is Liminal HSM Vaults designed for?
Liminal HSM Vaults is built for regulated financial institutions – including banks, enterprise custodians, fintechs, and digital asset service providers – that require strong key sovereignty, compliant authorization workflows, and institutional-grade security architecture for digital asset management.
What certifications support Liminal HSM Vaults?
The solution is built on the Securosys Primus HSM E-Series, certified to FIPS 140-2 Level 3 (FIPS 140-3 Level 3 in process). Liminal Custody holds ISO 27001, ISO 27701, and SOC Type 2 certifications, providing a full compliance framework for institutions operating under regulatory scrutiny.
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Connect with our experts to explore how Liminal HSM Vaults can support your institution’s custody and governance needs.
