Bitcoin Developers Propose 'Wait and React' Strategy 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 imposing a pre-emptive freeze on vulnerable coins, the proposal involves waiting for a quantum-capable attacker to demonstrate their capabilities and then triggering a network-wide response. This 'wait and react' strategy relies on a canary system, where a small amount of bitcoin is placed in a special address that can only be unlocked by a quantum attacker, thereby 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 for implementing security measures, which has been met with criticism for being overly restrictive. The new approach includes a financial incentive for the first entity to demonstrate a quantum attack, as well as a safety window to prevent stealth attacks. However, the strategy rests on the assumption that the first quantum-capable attacker will claim the bounty rather than exploiting the vulnerability for personal gain, which some argue is an uncomfortable bet given the network's history of prioritizing security and decentralization.