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Blockstream CEO Says Bitcoin Safe from Quantum Threat for Decades

Adam Back reiterates Bitcoin’s resilience against quantum computing risks, countering predictions of near-term threats and stressing preparedness through post-quantum cryptography adoption.

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Summary

Blockstream CEO Adam Back stated on Feb. 15 that Bitcoin is unlikely to face threats from quantum computers for 20–40 years, disputing Chamath Palihapitiya’s prediction that practical quantum computing could emerge within 2–5 years. Back emphasized Bitcoin’s SHA-256 encryption remains secure and highlighted that NIST-approved post-quantum cryptography standards could be implemented before any quantum computer poses a real risk.

Terms & Concepts
  • SHA-256: A cryptographic hash function used in Bitcoin for securing transactions and blocks.
  • Post-quantum cryptography: Encryption methods designed to resist attacks from quantum computers.
  • NIST: The National Institute of Standards and Technology (U.S. standards agency) that develops and approves technology and cryptography standards.