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Casa Co-Founder: Quantum Computing Unlikely to Break Bitcoin in the Short Term, But Retrofitting the Bitcoin Network Could Take 5 to 10 Years

2025.12.21 21:47:18

December 21: Jameson Lopp, co-founder of Bitcoin custody firm Casa, said in a social media post, “I’ve been publicly talking about the risk quantum computing poses to Bitcoin for 18 months. My main takeaway: I truly hope quantum computing development stalls or even retreats—because adapting Bitcoin to the post-quantum era will be extremely tricky, for many reasons.” “Quantum computers won’t break the Bitcoin network in the short term. We’ll keep monitoring its progress. That said, a full overhaul of the Bitcoin network (and unprecedented fund migration) could take 5 to 10 years. We should hope for the best, but prepare for the worst-case scenario.”
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