Project Eleven Warns Quantum “Q-Day” Could Hit as Early as 2030, Threatening Bitcoin
Project Eleven, a quantum risk research firm, has issued a warning that the so-called “Q-Day” — when quantum computers become powerful enough to break Bitcoin’s cryptographic security — could arrive as early as 2030. The firm estimates that approximately 6.9 million BTC could be vulnerable to quantum attacks under certain scenarios. Unlike gradual breakthroughs, the quantum threat could materialize “all at once,” catching the crypto ecosystem unprepared. The warning has reignited debate about whether Bitcoin’s proof-of-work consensus and elliptic curve cryptography can be upgraded in time to resist quantum computing attacks. Bitcoin developers have discussed post-quantum cryptography upgrades, but implementation timelines remain uncertain. The report adds urgency to ongoing efforts in the crypto industry to develop quantum-resistant protocols.