Nic Carter: Quantum computing is an engineering challenge away from breaking Bitcoin, and 1.7M BTC sits in the danger zone

YaelYael
/Dec 20, 2025

Key Takeaways

• Quantum computing presents a real threat to Bitcoin, requiring urgent engineering solutions.

• Approximately 1.7 million BTC is considered vulnerable to quantum attacks.

• Bitcoin can potentially migrate to post-quantum signatures through a soft fork.

• Users are advised to avoid address reuse and understand the risks associated with the mempool.

• Ongoing advancements in quantum technology necessitate proactive measures from Bitcoin developers and holders.

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