Bitcoin Developers Propose Quantum Defense Measures, Potentially Freezing Vulnerable Coins

The promise of Bitcoin's security is being reevaluated as developers propose measures to defend against potential quantum computer attacks. A recently updated proposal, Bitcoin Improvement Proposal (BIP)-361, aims to migrate coins to quantum-resistant addresses or risk having them frozen permanently. This move is in response to warnings that a sufficiently powerful quantum machine could compromise Bitcoin's blockchain, allowing hackers to steal coins. The proposal outlines a three-phase plan, starting with blocking new bitcoin from being sent to old-style addresses, followed by rendering old signatures invalid, and potentially introducing a rescue phase using zero-knowledge proof. However, the community is pushing back against the idea of freezing coins, citing it as a violation of Bitcoin's fundamental principle of sovereign control over funds. Developers argue that this is a defensive measure to protect the Bitcoin ecosystem from potential threats.