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Dec 5, 2025

Quantum computing and blockchains: Let's match the urgency with the actual threats. But first, where are we on timelines to an cryptographically relevant quantum computer? Lately, the timelines are being overstated — leading to calls for urgent, wholesale transitions to post-quantum crypto. This is a problem because it overlooks the costs and risks of premature migration, and ignores more salient security risks. Learn more: https://a16zcrypto.com/posts/article/quantum-computing-misconceptions-realities-blockchains-planning-migrations/

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Quantum computing and blockchains: Matching urgency to actual threats - a16z crypto

Timelines to a cryptographically relevant quantum computer are frequently overstated — leading to calls for urgent, wholesale transitions to post-quantum cryptography. But the real challenge in navigating a successful migration to post-quantum cryptography is matching urgency to actual threats.