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

A radical approach is being debated among Bitcoin developers, where the network would only take action against a potential quantum computing threat once it has been proven to exist. This plan relies on the assumption that the first entity to demonstrate quantum capabilities will claim a reward rather than exploiting the vulnerability for personal gain. The proposed 'canary' system involves placing a small amount of bitcoin in a special address that can only be accessed by a quantum-capable attacker, triggering a network-wide freeze of older wallets if the funds are spent. This approach is designed to replace a previously proposed fixed five-year timeline for implementing security measures, which has been criticized for being 'authoritarian and confiscatory'. The new plan includes a financial incentive for users to contribute to a bounty, which would be awarded to the first entity to demonstrate a quantum attack. However, this approach is not without risks, as it relies on the attacker's integrity and may not prevent a large-scale theft. If the plan fails, Bitcoin may face the worst of both worlds, experiencing a catastrophic event that could have been prevented by a fixed-timeline defense.