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

The Bitcoin community is considering a novel approach to mitigate the potential risks posed by quantum computing, which involves delaying action until a threat is actually demonstrated. This 'wait and react' strategy relies on the assumption that a malicious actor would rather claim a reward than exploit the vulnerability for personal gain. A recently published proposal outlines a system where a small amount of bitcoin is placed in a special address, accessible only to a quantum-capable attacker. If the attacker unlocks the address, it would serve as proof of the threat's existence, triggering a network-wide freeze on older wallets. This approach is designed to provide an alternative to a previously proposed fixed timeline for implementing restrictions, which was met with criticism for being overly authoritarian. The new proposal incorporates a financial incentive, allowing users to contribute to a bounty that would be awarded to the first entity to demonstrate a quantum attack. However, this approach is not without its risks, as it assumes that the first entity capable of breaking Bitcoin's security would choose to claim the bounty rather than carrying out a potentially catastrophic attack.