Bitcoin Developers Propose 'Wait and React' Strategy to Counter Quantum Computing Threats

The Bitcoin development community is considering a novel approach to address the potential threat of quantum computing to the network's security. Instead of implementing a pre-emptive freeze on vulnerable coins, the proposed 'wait and react' strategy would only take action if a quantum-capable attacker demonstrates their capabilities. This approach is based on a 'canary' system, which involves placing a small amount of bitcoin in a special address that can only be unlocked by a quantum-capable attacker. If the attacker succeeds in unlocking the address, it would trigger a network-wide freeze on older wallets, effectively preventing any further theft. The proposal also includes a financial incentive, where users can contribute to a bounty that would reward the first entity to demonstrate a quantum attack publicly. However, this approach relies on the assumption that the attacker would claim the bounty rather than attempting to steal a large amount of bitcoin, which may not be a reliable bet. The proposed system aims to provide a more flexible and responsive approach to addressing quantum computing threats, but it also carries the risk of catastrophic consequences if the attacker chooses not to reveal their capabilities.