Bitcoin Developers Propose Freezing Coins to Counter Quantum Threats

The promise of Bitcoin's security is being reevaluated as developers propose a measure to defend against future quantum computer threats. This move could lead to the freezing of coins in vulnerable addresses, rendering them unusable. The proposal, known as Bitcoin Improvement Proposal (BIP)-361, suggests a phased approach to migrating coins to quantum-resistant addresses. The first phase would prevent new coins from being sent to vulnerable addresses, while the second phase would render old-style signatures invalid, effectively freezing the coins. A potential rescue phase is also being researched, which could allow holders to recover frozen coins using zero-knowledge proofs. The community is divided on the issue, with some viewing it as a necessary defensive measure and others seeing it as an authoritarian overreach. The proposal has sparked debate about the balance between security and the fundamental principles of Bitcoin, including sovereign control over funds.