
Bitcoin's Quantum Problem: Decades Away or Imminent Danger?
From No Second Best - A Bitcoin Podcast by Swan Bitcoin
February 19, 2026 · 26 min · Season 2
About this episode
This episode discusses the potential risks quantum computing poses to Bitcoin's security and the validity of these concerns.
Quantum computing is being called Bitcoin's biggest existential risk. Some say it could break elliptic curve cryptography by 2028. Others say that's physics fiction. In this episode of No Second Best, we break down the real quantum threat to Bitcoin, Shor's algorithm, ECDSA exposure, SHA-256 resilience, institutional incentives, BIP-360, post-quantum cryptography, and what would actually have to happen for Bitcoin security to fail. Is this a real long-term risk, or another exaggerated cycle of fear? We separate engineering reality from projection — and explain why the evidentiary standard hasn't been met. https://www.youtube.com/watch?v=uZZkQRqnNE4 https://www.youtube.com/watch?v=s7-l7gzm_PE
People in this episode
Host: Swan Bitcoin
Topics covered
- quantum computing
- Bitcoin security
- cryptography
- Shor's algorithm
- ECDSA exposure
- SHA-256 resilience
- post-quantum threats
Keywords
- quantum computing
- Bitcoin
- Shor's algorithm
- ECDSA
- SHA-256
- cryptography
- BIP-360
- post-quantum
Mentioned in this episode
Organizations: Bitcoin, BIP-360
Products: ECDSA, SHA-256, post-quantum cryptography
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