Bitcoin Core developers: We'd rather freeze 5.6 million BTC than let them fall into the hands of quantum hackers.

Bitcoin Core developer Jameson Lopp stated that he prefers to "freeze" approximately 5.6 million long-dormant Bitcoins from the network rather than allow them to be acquired by attackers, rather than risk a potential future quantum computing attack. These Bitcoins have not moved for over 10 years and may be permanently lost, valued at approximately $420 billion at current prices. If a future breakthrough in quantum computing leads to the cracking of the private keys of old addresses, these assets could be transferred again, causing significant market volatility and even a crisis of confidence. Although the community recently proposed BIP-361, this proposal is still in its early stages and is not a formally implemented solution, but rather a contingency plan to address "extreme risks." (CoinDesk)