For anyone evaluating long-term custody, a central question is where sensitive key material goes during transaction signing. In a report published on November 14, 2026, at 17:47 (UTC+8), Foresight News, citing Cointelegraph, said Blockstream and French technology group Thales had introduced an institutional digital-asset custody system combining Thales hardware security modules (HSMs) with Blockstream’s Secure-MPC technology. According to the report, the entire transaction-signing protocol runs within the HSM-protected environment, and sensitive key material does not leave the dedicated hardware.
Blockstream co-founder and CEO Adam Back argued that conventional MPC protocols are too complex and interactive for fully offline cold storage. Citing Binance-related hacking incidents as an example of unauthorized-access risks on connected devices, he also warned that AI could help attackers find subtle flaws in complex implementations. Those are Back’s assessments, not a claim in the report that this new system has eliminated such risks.
The announcement concerns institutional custody, not a new personal-wallet setup. Its practical distinction for readers is the stated boundary around signing and key material; the source provides no audit results or evidence of how the system performs in use.