Quantum Alliance Launches to Police Crypto Security Claims

Nine blockchain organizations launched the Quantum Alliance on Thursday, an open standards body designed to police how crypto networks claim protection against quantum computers. The group will define what “quantum-ready” means and establish testing criteria for wallets, infrastructure and base-layer protocols.

The founding contributors include Quantus, Postquant Labs, Midnight Foundation, Keystone, Abelian and security firm Hacken. They span hardware wallets, privacy networks, rollups and auditing. Modeled on the Internet Engineering Task Force, the Alliance said proposals will advance based on public evidence and working implementations rather than corporate size or token holdings. Everything it produces will be published openly.

Work will run through four groups: blockchain migration, post-quantum zero-knowledge systems, wallet security and cross-chain compatibility. “In the future, ‘post-quantum cryptography’ will just be called ‘cryptography’ and everything else will be in a museum,” said Quantus founder and CEO Christopher Smith.

No shared definition of quantum resistance currently exists. Networks routinely market themselves as secure against quantum attacks without standardized evidence backing those claims.

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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. One cracked privileged key could cascade across platforms.

Timelines keep tightening. The Alliance cites recent forecasts pointing toward the late 2020s, including a model co-built by two contributors that flags March 2028 as an early window. A separate Google Quantum AI study slashed the estimated qubits needed to break Bitcoin’s cryptography to under 500,000. No machine can do it yet, but the theoretical threshold continues to drop. Investor Kevin O’Leary has flagged the quantum threat as a catch hanging over Bitcoin’s long-term case.

The National Institute of Standards and Technology finalized its first three post-quantum cryptographic algorithms in August 2024, setting a baseline for traditional web infrastructure. Blockchains face a harder problem. Upgrading consensus rules requires coordinating thousands of independent node operators globally, and moving funds to new addresses forces individual users to execute transactions before their old keys are compromised.

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.