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

The Bitcoin community is considering a novel approach to addressing the potential threat of quantum computing to the network's security. Instead of imposing a pre-emptive freeze on vulnerable coins, the proposal involves waiting for an attacker to demonstrate their capabilities and then triggering a network-wide response. This 'wait and react' strategy is based on a 'canary' system, where a small amount of bitcoin is placed in a special address that can only be unlocked by a quantum-capable attacker. If the attacker accesses the funds, it will serve as public proof that the threat is real, automatically triggering a network-wide freeze of older wallets. The approach is designed to provide an alternative to a previously proposed fixed five-year timeline for implementing security measures, which has been criticized for being 'authoritarian and confiscatory.' The new proposal includes a financial incentive for the first entity to demonstrate a quantum attack, allowing users to contribute to a bounty fund that rewards the attacker for revealing their capabilities rather than exploiting them for personal gain. However, this approach relies on the assumption that the first entity capable of breaking Bitcoin's security will choose to claim the bounty rather than carrying out a potentially massive theft. This assumption has raised concerns, as it goes against the network's historical emphasis on preventing worst-case scenarios and minimizing the need for protocol-level interventions.