AmericanFortress Raises $8M to Defend the $483 Billion in Bitcoin Already Exposed to Quantum Risk

This story was originally published on HackerNoon at: https://hackernoon.com/americanfortress-raises-$8m-to-defend-the-$483-billion-in-bitcoin-already-exposed-to-quantum-risk. mericanFortress raises $8M with 0G Labs to make blockchain transactions quantum-resistant as Google's March paper accelerates the Q-Day timeline. Check more stories related to tech-stories at: https://hackernoon.com/c/tech-stories. You can also check exclusive content about #americanfortress, #blockchain, #cryptocurrency, #defi, #good-company, #bitcoin, #cybersecurity, #og-labs, and more. This story was written by: @ishanpandey. Learn more about this writer by checking @ishanpandey's about page, and for more stories, please visit hackernoon.com. AmericanFortress closed an $8 million seed round co-led by SAVA Digital Asset Fund, Moon Pursuit Capital, and 0G Labs, and filed a patent for quantum-resistant cryptographic transaction signing that any chain can license as a retrofit. The launch arrives as roughly 6.9 million Bitcoin (~$483 billion at recent prices) sit in addresses with already-revealed public keys, making them vulnerable to a one-shot Shor's algorithm attack the moment a sufficiently powerful quantum computer exists. Google and Caltech papers published in March 2026 cut the qubit threshold needed to break Bitcoin's ECDSA signatures, and Justin Drake of the Ethereum Foundation now estimates at least a 10% chance by 2032. Bitcoin and Ethereum have proposals on the table (BIP-360, Vitalik's Strawmap), but governance over what to do with millions of dormant exposed wallets that cannot be migrated remains the real obstacle. AmericanFortress's bet is to bypass that governance trap entirely by selling licensable PQC signing infrastructure to chains that move first. 0G Labs becomes the first chain to bring the technology to production. NIST finalized the foundational PQC standards (FIPS 203, 204, 205) in August 2024. Twenty months later, only one major chain has reached production deployment.