"Bernstein's analysts acknowledged that cryptographically relevant quantum computers (CRQCs) pose a genuine challenge to Bitcoin and the broader digital asset ecosystem - but stopped short of treating that challenge as an emergency."
"Google's team estimated the barrier could fall below 500,000 physical qubits - a reduction of roughly 20 times compared to prior estimates, drawing attention to a narrower category of risk: so-called 'on-spend' attacks."
"The firm placed particular weight on cost and scalability constraints, suggesting the transition could run into the tens to hundreds of billions, emphasizing that significant breakthroughs are still needed."
Bernstein analysts acknowledge that quantum computers present a real threat to Bitcoin and digital assets but view it as a scheduled evolution rather than an emergency. They estimate a three to five-year window for implementing post-quantum security measures. Recent research from Google indicates that future quantum machines could break Bitcoin's cryptography more easily than previously thought. However, Bernstein emphasizes that significant technical challenges remain, and the timeline for quantum threats may be overly optimistic.
Read at Bitcoin Magazine
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