---
title: "Blockstream and Thales Launch Enterprise Custody Integrating MPC Inside HSMs"
description: "The institutional platform runs multi-party computation protocols entirely within hardware security modules using FROST threshold signatures."
url: https://basisdesk.news/news/blockstream-thales-launch-enterprise-custody-frost-mpc
published: 2026-11-13T22:11:07.952Z
modified: 2026-11-13T22:11:07.952Z
section: Institutions & ETFs
author: Basis Desk Newsroom (AI-generated, source-verified)
sentiment: neutral
tickers: [BTC]
tags: [Blockstream, Thales, custody, institutional-custody, MPC, HSM, FROST]
license: Quote with attribution to Basis Desk (basisdesk.news). Not financial advice.
---

# Blockstream and Thales Launch Enterprise Custody Integrating MPC Inside HSMs

The institutional platform runs multi-party computation protocols entirely within hardware security modules using FROST threshold signatures.

## At a glance

- **What happened:** Blockstream and Thales announced an enterprise custody platform on Nov. 13 that runs MPC protocols inside HSMs.
- **Why it matters:** Executing signing schemes directly inside hardware modules protects cryptographic key fragments from host-level software exposure.
- **Who is affected:** Financial institutions, digital asset custodians, and enterprise treasury desks.
- **Takes effect:** 2026-11-13
- **What's next:** No next step announced.
- **Status:** announced
- **Primary source:** [Blockstream launches Enterprise custody solution developed in…](https://blog.blockstream.com/press-releases/blockstream-launches-enterprise-custody-solution-developed-in-collaboration-with-thales) — blog.blockstream.com

## Key points

- Blockstream partnered with Thales to deploy an enterprise custody product embedding MPC execution directly inside HSMs.
- The architecture integrates FROST threshold signatures so signers can authorize transactions without assembling the private key.
- The rollout marks the formalization of a two-year technical collaboration between Blockstream and Thales.

## Editorial remark

- **Context:** Institutional custody setups have historically forced organizations to choose between physical hardware security modules and flexible, distributed multi-party computation software architectures.
- **Impact:** Banks, asset managers, and corporate treasuries handling digital assets gain an architecture designed to mitigate software-level memory vulnerabilities during signing rounds.
- **Watch:** Public announcements regarding institutional clients onboarding to the Blockstream Enterprise custody product, as well as third-party security audits of the hardware FROST implementation.

Blockstream launched an institutional custody platform on Nov. 13 in an expanded collaboration with cybersecurity firm Thales, aiming to shield digital asset operations with hardware-enclosed multi-party computation [1]. The offering links Thales hardware security modules (HSMs) directly to the Blockstream Enterprise suite to manage institutional $BTC storage and transaction signing [1]. At the time of writing, Bitcoin traded around $68,239 amid broader market drawdowns.

The service differentiates its key protection by executing the entire multi-party computation (MPC) protocol strictly inside Thales HSM hardware environments rather than relying on general-purpose software servers [1]. Traditional MPC protocols often handle cryptographic signing in host environments where key material can face exposure [1]. The new setup also uses Flexible Round-Optimized Schnorr Threshold Signatures (FROST), an advanced threshold signing scheme that allows distributed parties to generate valid signatures together without ever reassembling the underlying private keys [1]. Similar efforts across the market have focused on institutional MPC infrastructure, such as [Google previews multi-party computation security service for crypto custody](https://basisdesk.news/news/google-previews-multi-party-compute-crypto-custody).

## FROST Cryptography for Institutions

Blockstream said the rollout solidifies a two-year collaborative development cycle with Thales [1]. In addition to FROST, the system connects into the broader Blockstream Enterprise infrastructure, which supports integrations with existing legacy banking backends and the firm’s proprietary networks [1]. Blockstream Chief Product Officer Jeff Boortz stated that porting MPC execution inside the physical HSM perimeter addresses major threat vectors while retaining standard institutional multi-signer governance policies [1]. Blockstream has not yet disclosed pricing or specific financial institutions currently live on the platform [1].

## Sources

1. [Blockstream launches Enterprise custody solution developed in…](https://blog.blockstream.com/press-releases/blockstream-launches-enterprise-custody-solution-developed-in-collaboration-with-thales) — blog.blockstream.com, 2026-11-13

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Basis Desk Newsroom · AI-generated, source-verified · https://basisdesk.news/about/how-we-use-ai