AmericanFortress has introduced a patent-pending post-quantum signature scheme designed to protect existing crypto assets, including dormant wallets, from potential quantum attacks. According to CoinDesk, the protocol employs a backward-compatible soft fork and zero-knowledge proofs to secure vulnerable pre-BIP32 bitcoin addresses, such as Satoshi-era wallets. This initiative aims to safeguard Satoshi Nakamoto's 1.1 million bitcoin stash and nearly 5 million BTC in dormant accounts, valued at approximately $400 billion. The announcement follows an $8 million seed funding round co-led by SAVA Digital Asset Fund, Moon Pursuit Capital, and 0G Labs. AmericanFortress CEO Michal Pospieszalski emphasized that the protocol would freeze and protect these funds until governance decides their fate, ensuring the integrity of Bitcoin and other major chains like Ethereum, Solana, and Tron.