Blockstream and Thales Launch Bitcoin Custody for Institutions
The solution combines Thales HSMs with Blockstream’s Secure-MPC, allowing institutions to sign Bitcoin transactions offline. The launch comes after concerns about online signing risks following the Binance hack.
Key Takeaways
- Blockstream and Thales are launching a custody solution together for institutional Bitcoin investors.
- Transactions are signed entirely inside security hardware, so private keys do not need to come online.
- Blockstream is not naming a price, launch customers, or a timeline for availability.
Blockstream, together with French technology group Thales, has launched a custody solution for institutional Bitcoin investors. The core of the product is that transactions are signed entirely inside specialized security hardware, so private keys do not need to come online.
Security Inside the Hardware
According to Blockstream, the solution combines Thales hardware security modules with the crypto company’s Secure-MPC technology. That lets institutions authorize transactions while the sensitive cryptographic operations stay inside the protected hardware.
Blockstream says the entire signing process runs in the HSMs, so the key material stays protected even during signing. That fits into the broader trend in the institutional crypto market, where more and more players prefer to keep sensitive infrastructure closer to home instead of outsourcing it to third parties.
Why This Matters Now
The launch comes shortly after the Binance hack, where earlier reporting said an estimated $6.3 billion was stolen. Blockstream CEO Adam Back pointed to that incident as an example of the risk of signing devices connected to the internet. His message was clear: the more systems are online, the greater the chance of abuse.
Back also said conventional MPC protocols are often too complex and too interactive for fully offline cold storage. In his words, complexity is the enemy of security. Blockstream is not naming a price, launch customers, or a timeline for availability.
Relevance for European Firms
For European institutions, this matters because custody is increasingly becoming a strategic part of Bitcoin infrastructure. Major financial firms are building their own custody systems worldwide, while hardware security modules have long been seen as a foundation for safely managing cryptographic keys. The move by Blockstream and Thales shows that security and operational control are coming together more closely in this market.
The recent test with quantum-safe custody also shows that institutional players want to tighten their custody setup further, now that security and key management are becoming more central in the market.