Steal Bitcoin, Lose Your Own BTC? Developer Floats Three Defenses Against Quantum Attacks
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Bitcoin developer Cory Fields has proposed three experimental mechanisms designed to make quantum attacks on vulnerable BTC financially costly for attackers. The defenses aim to penalize quantum hackers by putting their own BTC at risk when attempting to steal coins protected by exposed public keys. The proposal arrives as Bitcoin's quantum exposure remains a live concern, with older wallet formats and reused addresses seen as most vulnerable to future quantum-enabled key extraction. Fields' mechanisms are experimental and would require community review and consensus before any activation. What to watch next is developer discussion and testing to determine whether any of the three approaches gains traction as a formal Bitcoin Improvement Proposal.
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