
FYI - For Your Innovation Does Quantum Threaten Bitcoin? | The Brainstorm EP 112
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Dec 3, 2025 Ray (Raye), a crypto researcher specializing in Bitcoin security, delves into the pressing threat of quantum computing on Bitcoin. He highlights that a third of Bitcoin's supply is exposed to potential quantum attacks that could reverse-engineer private keys. Ray discusses the challenges of migrating to quantum-resistant signatures and the need for community consensus on these crucial changes. The conversation also touches on geopolitical stakes and the mixed role of AI in quantum research, painting a vivid picture of the future risks facing digital currencies.
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A Third Of Bitcoin Is Quantum-Vulnerable
- About one third of Bitcoin (≈6.7M BTC) sits in addresses vulnerable to quantum attacks today.
- Public-key revelation or address reuse lets quantum reverse-engineer private keys and steal funds.
Coordinate Consensus And Stagger Migrations
- Prioritize consensus for a quantum-resistant signature upgrade and plan coordinated migration campaigns.
- Estimate network capacity and stagger migrations to avoid multi-month congestion.
Migrate To Quantum-Resistant Addresses Now
- Move vulnerable coins to quantum-resistant addresses and adopt quantum-resistant signature schemes.
- Start migration and consensus work years ahead — plan at least a two-year buffer before projected quantum risk.
