Bitcoin’s post-quantum migration will be harder than Taproot and needs to start now, Project Eleven CEO says

Alex Pruden said the asymmetry between acting on a post-quantum signature scheme today and waiting for certainty about quantum-computing hardware timelines means Bitcoin developers should move from research into production....
Key takeaways
- 1Bitcoin must migrate to post-quantum signatures now rather than wait for quantum computer certainty, as the risk-asymmetry favors early action.
- 2Post-quantum migration will be harder than Taproot upgrade, requiring every Bitcoin user, wallet, and exchange to participate versus Taproot's opt-in approach.
- 3A sufficiently capable quantum computer could derive private keys from exposed public keys using Shor's algorithm, threatening approximately $2.3 trillion in assets.
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Why it matters
India's growing crypto retail investor base faces existential security risks if Bitcoin's quantum vulnerability isn't addressed proactively. Early migration decisions will determine whether Indian holdings remain secure or become vulnerable to quantum-era attacks that could devastate the broader crypto ecosystem.
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