Project Eleven flags “Q-Day” risk for Bitcoin as early as 2030, says 6.9 million BTC exposed

Project Eleven warns Q-Day (when quantum computers can break public-key crypto) could arrive as early as 2030, citing rapid progress in quantum attacks on elliptic curve cryptography (ECC) that may put millions of bitcoins at risk. The analysis, based on recent demonstrations and academic work, highlights urgent crypto security risks and the need for protocol upgrades, post-quantum adoption, wallet migrations and industry-wide mitigation to protect Bitcoin and other crypto assets.