Developer Rejects Quantum-computing Theory for Bitcoin Selloff
Bitcoin developer Matt Corallo pushed back on the idea that quantum-computing fear is the core driver of Bitcoin’s latest drawdown, arguing on Laura Shin’s Unchained (Feb. 19, 2026) that the storyline “doesn’t add up.” He framed the selloff as more consistent with market mechanics than with a sudden cryptographic crisis.
Coinbase Analyst Warned Quantum Threat To Bitcoin Goes Beyond Wallet Hacks
David Duong, Coinbase’s Global Head of Investment Research, argued that quantum computing is a bigger risk to Bitcoin than “someone stealing a wallet.” He estimated that roughly 32.7% to 33.7% of supply—about 6.51 million BTC—sits in address types that are more exposed to quantum-style attacks, creating a network-wide integrity problem, not just isolated theft.