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

The Bitcoin community is considering a novel approach to address the potential threat posed by quantum computing: delaying the implementation of security measures until an attacker demonstrates their capabilities. However, this plan relies on the assumption that the attacker 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 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 proposal includes a financial incentive for the first entity to demonstrate a quantum attack, allowing users to contribute to a bounty fund that rewards the attacker for revealing their capabilities rather than exploiting them. While this approach reduces the risk of premature disruption to users, it rests on the uncertain assumption that the first attacker will prioritize the bounty over the potential for theft. If this assumption proves incorrect, the network may be exposed to significant risks, highlighting the ongoing challenges in balancing security with the need to preserve the core principles of the Bitcoin protocol.