By Isaac • November 13, 2026 11:13 pm •
Blockstream and Thales are taking institutional Bitcoin custody back to a basic security principle: keep the most sensitive signing work inside dedicated hardware.
The companies have launched an enterprise custody system that combines Blockstream’s Secure Multi-Party Computation technology with Thales hardware security modules. Blockstream says the entire signing protocol runs inside the protected HSM environment, rather than exposing part of the operation to general-purpose computers.
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In its Blockstream announcement, the company said the design keeps sensitive key material protected throughout a transaction’s lifecycle, including during signing. The product is being delivered through Blockstream Enterprise for institutional digital-asset operations.
The companies describe it as an expansion of a two-year collaboration. Blockstream Enterprise is designed to help institutions
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