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 reacting accordingly. 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 address is accessed, it would trigger a network-wide freeze of older wallets. The proposal also includes a bounty system, where users can contribute bitcoin to incentivize the first entity to demonstrate a quantum attack, rather than attempting to exploit the vulnerability for personal gain. However, this approach relies on the assumption that the first entity to demonstrate a quantum attack will claim the bounty rather than attempting to steal millions of bitcoin, which may not be a reliable bet. The proposal is an alternative to BIP-361, which would impose a fixed five-year timeline for addressing the quantum computing threat, and has been criticized for being 'authoritarian and confiscatory'. The new proposal aims to strike a balance between security and the principles of decentralization and user control that underpin the Bitcoin network.