Nine companies including BlackRock and Coinbase pledge $15M to quantum-proof Bitcoin

Nine major market players — BlackRock, Coinbase, Strategy, Anchorage Digital, ARK Invest, Block, Blockstream, Fidelity Digital Assets and Galaxy — have formed the Bitcoin Security Consortium, pledging a combined $15 million over three years toward network security research and open-source development, including preparation for quantum-computing threats.

The money won't be pooled or held by the consortium itself — each member independently chooses which developers, researchers, or organizations to fund. The announcement doesn't disclose individual contributions, or whether this represents new commitments versus existing ones.

Who's in the consortium

• BlackRock
• Coinbase
• Strategy
• Anchorage Digital
• ARK Invest
• Block
• Blockstream
• Fidelity Digital Assets
• Galaxy

“Bitcoin Core developers do incredibly important work, and we're pleased that our firm and the others in this group will now be making significant additional funding available to support Bitcoin's long-term security needs.”

— Robert Mitchnick, Head of Digital Assets at BlackRock

Quote source: CoinDesk.

“As long-term holders, we have every incentive to see Bitcoin remain secure for generations. Funding the people who do this work, and helping inform the conversation around it, is a natural way for us to contribute.”

— Phong Le, CEO of Strategy

Quote source: CoinDesk.

Where quantum threats come in

Quantum computers powerful enough to break Bitcoin's cryptography don't exist yet. But roughly 6.9 million BTC — nearly a third of total supply — already sit in addresses whose public key is exposed on-chain, whether from old address formats or address reuse. That's the entry point: a sufficiently powerful quantum computer could, in theory, derive a private key from an already-exposed public key.

Developers proposed a technical fix back in February 2026 — BIP-360, a new address type designed to resist quantum attacks. A companion proposal, BIP-361, lays out a migration plan — and potential freeze — for vulnerable coins if a real quantum threat starts to materialize. Coordinating the consortium's work on a volunteer basis is Mike Schmidt, executive director of Brink, the nonprofit that already funds Bitcoin developers.

The consortium is explicit that it won't govern the Bitcoin protocol or make decisions on the network's behalf — only fund independent developers and researchers. A similar fight over who gets to influence protocol changes played out a month earlier around the BIP-110 proposal and Michael Saylor's pushback, though that dispute was about limiting data in blocks, not quantum defense.

None of this should be read as personalized investment advice.