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

The Bitcoin community is considering a new approach to addressing the potential threat of quantum computing to the network's security. Instead of implementing a pre-scheduled upgrade to protect against quantum attacks, the proposal involves waiting for an attacker to demonstrate their capabilities and then responding accordingly. This 'wait and react' strategy relies on a 'canary' system, where a small amount of bitcoin is placed in a special address that can only be accessed by a quantum-capable attacker. If the attacker succeeds in unlocking the address, it would trigger a network-wide freeze on older wallets, preventing further potential theft. The proposal also includes a bounty system, where users can contribute bitcoin to incentivize the first entity to demonstrate a quantum attack, rather than exploiting the vulnerability for personal gain. However, this approach assumes that the attacker will prioritize claiming the bounty over carrying out a large-scale theft, which may not be a reliable assumption. The proposal is seen as an alternative to a controversial plan to impose a fixed five-year timeline for upgrading the network's security, which has been criticized for being overly restrictive and potentially leading to the confiscation of users' funds.