Recently, Google's Quantum AI team proposed that future quantum computers could derive private keys from Bitcoin public keys in about 9 minutes. The actual threat involves exploiting the average 10-minute block confirmation time in Bitcoin to hijack unconfirmed transactions in the mempool. If a quantum computer can run Shor's algorithm within 9 minutes to crack the private key, hackers could seize transactions during this window. While Bitcoin's mining algorithm (SHA-256) is relatively secure, the elliptic curve signatures that guarantee asset ownership are highly vulnerable to quantum attacks. Additionally, the 2021 Taproot upgrade defaulted to public key disclosure, inadvertently increasing the exposure surface; currently, approximately 6.9 million early Bitcoin are at long-term risk due to exposed public keys. (CoinDesk)