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Crypto Score 35 Neutral

Samson Mow Warns Against Rushing Bitcoin's Quantum Security Upgrade

Apr 06, 2026 12:03 UTC
BTC-USD
Long term

Bitcoin advocate Samson Mow cautions against hastily implementing post-quantum cryptography, warning it could create new vulnerabilities before addressing existing threats.

  • Samson Mow warns against rushing Bitcoin's transition to post-quantum cryptography
  • Mow cites potential compatibility issues and reduced network efficiency from larger signature sizes
  • Coinbase executives Brian Armstrong and Philip Martin have called for earlier quantum threat preparation
  • Mow acknowledges the need for ongoing research but cautions against premature implementation
  • Recent research from Google and Caltech has heightened concerns about quantum computing progress

Bitcoin advocate Samson Mow has raised concerns about the urgency to transition Bitcoin to post-quantum cryptography, arguing that a rushed implementation could introduce new risks. Mow, founder of Jan3, responded to calls from Coinbase executives Brian Armstrong and Philip Martin, who urged the industry to prepare for quantum computing threats earlier rather than later. He emphasized that while post-quantum (PQ) cryptography could protect Bitcoin against future quantum computers, hasty execution might lead to compatibility issues and reduced network efficiency. Mow highlighted that larger signature sizes from PQ cryptography could significantly impact block size, potentially reigniting debates over Bitcoin's scalability. The warning comes amid growing discussions about future-proofing Bitcoin, spurred by recent research from Google and Caltech on quantum computing advancements. Mow acknowledged the importance of preparing for quantum threats but stressed that premature action could weaken Bitcoin's current security posture. He noted that work on potential solutions should continue, even as the timeline for quantum computers remains uncertain. The debate reflects broader concerns about how to balance innovation with stability in the cryptocurrency ecosystem.

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