Ki Young Ju: Millions of BTC in old addresses may need to be frozen for quantum resistance

CryptoQuant CEO Ki Young Ju argued via X that Bitcoin may need to freeze millions of BTC, including those held by founder Satoshi Nakamoto and coins in older addresses, to counter the threat of quantum computing. He explained that approximately 6.89 million BTC are currently vulnerable to quantum attacks. Of these, 1.91 million have exposed public keys, while the remaining 4.98 million have had their public keys revealed in past transactions. Ju noted that the 3.4 million BTC that have been dormant for over 10 years present a strong incentive for attackers. He emphasized that social consensus could be more critical than a technical solution for Bitcoin to become quantum-resistant. Ju added that the key question is not when "Q-day"—the day quantum computing breaks BTC—will arrive, but that the discussion must begin now, as social consensus has always moved more slowly than technology.