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: delaying action until an attack is actually detected. This strategy relies on the assumption that the first entity to demonstrate quantum capabilities will claim a reward rather than exploit the vulnerability for personal gain. A recent proposal outlines a 'canary' system, which involves placing a small amount of bitcoin in a special address that can only be accessed by a quantum-capable attacker. If the address is compromised, it would trigger a network-wide freeze of older wallets. This approach is designed to provide an alternative to a fixed timeline for implementing restrictions, which has been met with criticism for being overly restrictive. The proposed system also includes a financial incentive, allowing users to contribute to a bounty that would reward the first entity to demonstrate a quantum attack. However, this approach carries significant risks, as it relies on the attacker's willingness to claim the bounty rather than exploiting the vulnerability for their own gain. If the attacker chooses to steal the funds instead, the network could be left vulnerable to a catastrophic attack.