October 14th 2026, 12:35 PM
Coinbase Warns Bitcoin Needs Decades to Prepare for Quantum Threats
Key Summary
Coinbase has published a roadmap for protecting Bitcoin against quantum computers, which could compromise the cryptocurrency's security. The process is expected to take years, raising concerns about the millions of Bitcoin already sitting in vulnerable wallets. The company advocates for flexible designs that can adapt as quantum-resistant techniques are developed, but actual updates require consensus among developers, miners, and users.
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Background
Coinbase just published a roadmap for protecting Bitcoin against quantum computers, and it admits the process could take years.The Threat
No quantum computer can break Bitcoin today, but roughly 20,000 addresses each holding 50-plus BTC already have exposed public keys, making them most at risk.The Impact
Post-quantum signatures are larger than current ones, which could shrink transaction capacity per block, drive up fees, and push smaller node operators off the network.The Roadmap
Coinbase's roadmap sets no deadlines, selects no final signature method, and commits no developers or miners to any specific action.The Future
The primary design focus for Bitcoin's future is flexibility, with various techniques being tested, refined, and occasionally discarded.#Bitcoin#US#QuantumComputing#SEC