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BitGo flags Bitcoin transaction signatures as primary quantum computing risk

By Public Technologies
  • Quantum computing poses a greater future threat to Bitcoin transaction signatures than mining, according to BitGo's analysis.
  • More than 34% of bitcoin had public keys exposed onchain as of March 1, 2026, according to BIP-361 estimates.
  • No publicly known quantum computer can recover Bitcoin private keys from public keys today.
  • Holders can reduce exposure through wallet management, but protection against fast quantum attacks would require protocol changes.
  • Proposed Bitcoin upgrades remain drafts, leaving migration paths and the treatment of vulnerable dormant coins unresolved.


Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. BitGo Holdings Inc. published the original content used to generate this news brief on October 29, 2026, and is solely responsible for the information contained therein.

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