Quantum Risk And Bitcoin: Preparing For A Post-Quantum World
From FYI - For Your Innovation by ARK Invest
May 21, 2026 · 56 min
About this episode
The episode discusses the risks quantum computing poses to Bitcoin and explores mitigation strategies.
In this episode of FYI, Brett Winton is joined by David Puell, Nic Carter, and Alex Pruden to examine the potential risks quantum computing poses to Bitcoin. The group explores how advances in quantum technology could compromise cryptographic security, what a “broken” Bitcoin system might look like in practice, and the technical pathways for mitigation. They also debate upgrade strategies, trade-offs in post-quantum cryptography, and the controversial question of how to handle vulnerable coins, including those attributed to Satoshi. Key Points From This Episode: 00:00:00 Introduction to the discussion on Bitcoin and quantum computing risk with expert guests. 00:02:37 Explanation of how Bitcoin’s digital signatures work and how quantum computers could forge them. 00:03:44 Public key exposure during transactions creates vulnerability to quantum attacks. 00:05:40 Examples of exposed keys across Lightning Network, bridges, and exchange infrastructure. 00:06:49 Breakdown of two attack vectors: dormant addresses vs. real-time mempool attacks. 00:08:17 The “point of no return” where fast quantum attacks prevent on-chain migration to safety. 00:12:13 Overview of different quantum…
People in this episode
Host: Brett Winton
Guests: David Puell, Nic Carter, Alex Pruden
Topics covered
- quantum computing
- Bitcoin
- cryptographic security
- post-quantum cryptography
- risk assessment
- technology mitigation
Keywords
- quantum risk
- Bitcoin security
- cryptography
- quantum attacks
- digital signatures
- exposed keys
- post-quantum strategies
Mentioned in this episode
Organizations: Bitcoin, Lightning Network, Satoshi, quantum computing
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