Bitcoin Developers Propose Alternative Plan to Counter Quantum Threat

The Bitcoin 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 proposal involves a 'canary' system that would trigger a network-wide response only if a quantum-capable attacker demonstrates their capability. This approach is based on the assumption that the attacker would claim a bounty rather than exploiting the vulnerability for financial gain. The system would involve 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 public proof of the threat and automatically triggering a network-wide freeze. The proposal is designed to provide a more flexible and user-centric approach to addressing the quantum threat, while also minimizing the risk of disrupting users prematurely. However, it relies on the uncertain bet that the first entity capable of breaking Bitcoin's security would choose to claim the bounty rather than executing a potentially massive theft.