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

The Bitcoin development community is considering a novel approach to addressing the potential threat of quantum computing to the network's security. Instead of imposing a scheduled freeze on vulnerable coins, the proposed 'canary' system would trigger a network-wide restriction only if a quantum-capable attacker demonstrates their capabilities on-chain, in exchange for a bounty. This 'wait and react' strategy involves placing a small amount of bitcoin in a special address that can only be unlocked by a quantum-capable attacker, with any spend from that address serving as proof of the threat and triggering a network-wide freeze. The proposal is designed to provide an alternative to a fixed five-year timeline, which has been met with criticism for being 'authoritarian and confiscatory.' The approach includes a financial incentive, where users can contribute to a bounty that rewards the first entity to demonstrate a quantum attack, rather than quietly exploiting vulnerable wallets. However, the proposal relies on the assumption that the first entity capable of breaking Bitcoin's security would claim the bounty rather than executing a large-scale theft, which raises concerns about the potential risks and consequences of such an approach.