币界网报道：Google's recent quantum computing breakthrough has reignited concerns about Bitcoin's security. Researchers demonstrated a quantum algorithm that could potentially crack Bitcoin's encryption, though experts note current quantum computers lack the necessary scale. Cryptography specialists emphasize that Bitcoin's SHA-256 protocol remains secure for now, but recommend proactive development of quantum-resistant blockchain solutions. The crypto community is divided, with some calling for immediate upgrades while others believe classical computing will advance alongside quantum to maintain security. Major blockchain projects have already begun exploring post-quantum cryptography options as a precautionary measure.