Bitcoin may take 7 years to upgrade to post-quantum: BIP-360 co-author

CoinTelegraph

by Andrew Fenton

February 18, 2026

AI-Generated Deep Dive Summary

Bitcoin's transition to post-quantum security is estimated to take seven years, according to Ethan Heilman, co-author of BIP-360. The process involves updating cryptographic protocols to withstand quantum computing threats, which could break current encryption methods. While the initial step with BIP-360 has begun, it's just one part of a larger effort requiring consensus across the network. The upgrade is challenging due to the need for all nodes, wallets, and services to adapt. This includes updating Lightning Network nodes and payment systems, which could take years. The timeline assumes optimistic conditions where everyone agrees on the roadmap and works swiftly. Quantum computers capable of breaking Bitcoin's encryption may emerge within five to seven years, according to experts. If this happens before Bitcoin upgrades, it could pose significant risks. However, Bitcoin is in a better position than other blockchains like Solana or Ethereum, as only a third of its public keys are exposed, reducing immediate vulnerability. While some dismiss the threat, preparing now is crucial. The crypto community must focus on reaching consensus and implementing changes efficiently to safeguard against potential quantum threats

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Originally published on CoinTelegraph on 2/18/2026