Bitcoin Developers Propose Quantum Defense Measures, Potentially Freezing Vulnerable Coins

The promise of Bitcoin's security is being reevaluated as developers propose a measure to defend against future quantum computers. A recently updated proposal, Bitcoin Improvement Proposal (BIP)-361, aims to migrate coins to quantum-resistant addresses or risk having them frozen by the network. This move is in response to a Google report warning that a sufficiently powerful quantum machine could compromise the Bitcoin blockchain. The proposal outlines a three-phase plan to block new bitcoin from being sent to vulnerable addresses, render old signatures invalid, and potentially allow holders to recover frozen coins using zero-knowledge proofs. However, the community is pushing back against the idea, citing concerns over authoritarianism and confiscation. Developers argue that the measure is defensive, aiming to protect the Bitcoin ecosystem from malicious actors. With approximately 6.7 million BTC in vulnerable addresses, the proposal has sparked a heated debate over the balance between security and user control.