For long-term holders, keeping signing systems away from online threats is a custody concern. An institutional system announced by Blockstream and Thales addresses that concern, but the source does not describe it as a personal-wallet product.
Originally reported November 14, 2026, at 05:54 (UTC+8). According to TechFlow’s report, citing Cointelegraph, the system combines Thales hardware security modules with Blockstream’s multiparty computation technology. Blockstream says the complete signing protocol runs within the hardware module’s protected environment.
Blockstream co-founder and CEO Adam Back said conventional multiparty computation protocols are complex and require frequent communication between devices, making them difficult to use in fully offline cold storage. He advocated cold storage for institutions to reduce exposure to network attacks and potential AI-assisted attacks. The report does not establish that this system eliminates those risks.