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

A novel approach to mitigating the risks of quantum computing to the Bitcoin network has been put forward by developers, who propose waiting for a potential attacker to demonstrate their capabilities before taking action. This 'wait and react' strategy relies on the assumption that an attacker would rather claim a bounty than exploit the vulnerability for personal gain. The proposed 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 on older wallets if the address is compromised. This approach is seen as an alternative to a previously proposed fixed five-year timeline for implementing restrictions on vulnerable wallets, which was criticized for being overly restrictive and potentially leading to the permanent freezing of unmigrated coins. The new proposal includes a financial incentive for users to contribute to a bounty, which would be awarded to the first entity to demonstrate a quantum attack, as well as a 'safety window' designed to prevent stealth attacks. However, the success of this strategy hinges on the assumption that the first entity capable of breaking Bitcoin's security would prefer to claim the bounty rather than execute a potentially massive theft, a bet that some argue is uncomfortable and cuts against the network's design principles.