Bitcoin Developers Propose Alternative Plan to Counter Quantum Computing Threats

The Bitcoin community is considering a novel approach to mitigate the potential risks posed by quantum computing: delaying the implementation of security measures until a real threat is detected. However, this plan relies on the assumption that a potential attacker will claim a reward rather than exploiting the vulnerability for personal gain. A recent proposal by BitMEX Research outlines 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, triggering a network-wide freeze of older wallets once the threat is proven. This approach is designed to provide an alternative to the controversial BIP-361 proposal, which would impose restrictions on a fixed five-year timeline. The new plan includes a financial incentive, allowing users to contribute to a bounty that rewards the first entity to demonstrate a quantum attack, and introduces a 'safety window' to make stealth attacks more difficult. While this approach reduces the risk of premature disruption, it hinges on the uncertain bet that the first capable entity will claim the bounty rather than executing a potentially massive theft. This bet contradicts Bitcoin's historical design principles and the network's cultural aversion to reversing such events after they occur.