Crypto news. Coinbase convened a cryptography advisory committee that believes quantum computers currently do not pose an immediate threat to blockchain, but the Bitcoin community should start planning for post-quantum signature migration. The committee pointed out that approximately 6.7 million BTC may face future quantum attack risks, with about 1.7 million of those located at early addresses, many related to Satoshi Nakamoto or lost private keys. The current controversy centers on whether, in the future, assets at vulnerable addresses that have not migrated to quantum-resistant signatures should be frozen or restricted, but the committee refused to choose a single optimal solution, stating that the relevant issues should be decided by the Bitcoin community, and preparations for the technical migration to post-quantum signatures should begin as early as possible.