Bitcoin Outlook: Coinbase Analyst Warns Quantum Computing Threatens 6.51M BTC as Key Resistance Caps Price

Bitcoin’s long-term security model is under scrutiny after Coinbase’s David Duong outlined two quantum computing attack paths targeting ECDSA signatures and SHA-256, with 6.51 million BTC already deemed at-risk on-chain. At the same time, BTC’s price is trading below the $92,000–$94,100 resistance zone near a triple-top and key Fibonacci levels, leaving traders focused on whether support above $86,900 can sustain a push back toward $100,000.