Nine blockchain organizations launched the Quantum Alliance, an open standards body that will define what "quantum-ready" means. The group says roughly 6.04 million BTC, about 30% of supply, sit quantum-exposed.
Executives from nine organizations launched the Quantum Alliance on Thursday, an open standards body that will set criteria for judging quantum-resistance claims. It will also create compatibility rules for networks as they migrate to new cryptography.
A standard for "quantum-ready"
The Alliance formed because there is no agreed definition of "quantum-ready", and no standard way to test one. A network can call itself quantum-resistant today with no shared understanding of what the claim covers.
Founding contributors span base-layer protocols, privacy networks, rollups, hardware wallets and security auditing. They include Quantus, Postquant Labs, Midnight Foundation, Keystone, Abelian and security firm Hacken.
Modeled on the Internet Engineering Task Force, the Alliance said proposals will advance on public evidence and working implementations rather than corporate size or token holdings. Its work will run in four groups: blockchain migration, post-quantum zero-knowledge systems, wallet security and cross-chain compatibility.
Why Bitcoin is exposed
Nearly every major blockchain secures accounts with elliptic-curve signatures. Once an account's public key is exposed on the ledger, a sufficiently powerful quantum computer running Shor's algorithm could theoretically reverse-engineer the private key and seize the funds. By the Alliance's count, roughly 6.04 million BTC, about 30% of supply, sit quantum-exposed at rest.
The same cryptography guards stablecoin minting keys, bridges, oracles and governance contracts, so one cracked privileged key could cascade across platforms.
Forecasts point to the late 2020s
The Alliance cites a cluster of recent forecasts pointing toward the late 2020s. One model, co-built by two Alliance contributors, flags March 2028 as an early window. A Google Quantum AI study, meanwhile, cut the estimated qubits needed to break Bitcoin's cryptography to under 500,000. No machine can do it yet.
Other groups are also moving. Coinbase recently urged Bitcoin developers to start the quantum migration now, suggesting preparations could take years. A consortium backed by BlackRock, Strategy and Coinbase has committed $15 million to the problem.
Source: Decrypt
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