Originally reported by Foresight News on November 14, 2026, at 17:47 (UTC+8), citing Cointelegraph.
Blockstream and French technology group Thales have partnered on a digital-asset custody system for institutions. It combines Thales hardware security modules (HSMs) with Blockstream’s Secure-MPC technology. According to the report, the transaction-signing protocol runs within the HSM-protected environment, so sensitive key material does not leave the dedicated hardware.
Blockstream co-founder and CEO Adam Back said conventional MPC protocols are too complex and interactive for fully offline cold storage. Citing a Binance-related hacking incident as an example of the risks posed by connected devices, he also warned that AI could help attackers find subtle flaws in complex implementations. He argued for a simpler cold-storage model.
The reported design describes where signing takes place and where key material remains. It does not, on its own, establish the system’s broader security performance or the terms of any customer custody arrangement.