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 a 'wait and react' strategy. This approach 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-capable attacker. If the attacker demonstrates their capability by spending the bitcoin, it would trigger a network-wide freeze of older wallets. The system also includes a financial incentive, where users can contribute to a bounty that would reward the first entity to demonstrate a quantum attack publicly. However, this approach assumes that the attacker will claim the bounty rather than exploiting the vulnerability for personal gain, which may not be a reliable assumption. The proposal is designed to provide an alternative to a fixed five-year timeline for addressing the quantum computing threat, which has been criticized for being overly restrictive and potentially undermining the principles of the Bitcoin network.