Bitcoin Developers Propose a 'Wait and React' Strategy Against Quantum Computing Threats

The Bitcoin community is exploring a new approach to counter potential quantum computing threats, focusing on a reactive strategy rather than proactive measures. This approach, proposed by BitMEX Research, involves creating 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. If the attacker unlocks the address, it serves as proof that the quantum threat is real, triggering a network-wide restriction on older bitcoin wallets. This system is designed to replace earlier plans for a pre-scheduled freeze, which were criticized for being overly restrictive. The proposal includes a financial incentive, where users can contribute to a bounty that rewards the first entity to demonstrate a quantum attack publicly. However, this approach relies on the assumption that the first quantum-capable attacker will claim the bounty rather than exploiting the vulnerability for personal gain, which raises concerns about the potential risks and consequences of such a strategy.