Security· ★★★· neutral·

Google's Willow cuts quantum errors 40-fold, reviving Bitcoin cryptography debate

  • —Willow cut magic-state preparation errors roughly 40-fold
  • —Fidelity hit 99.99%, but only about 8% of attempts succeeded
  • —Legacy P2PK addresses with exposed public keys are most at risk
  • —A sustained attack would need ~500,000 reliable magic states per second
Why it matters: A practical quantum attack remains years away, but the community must prepare post-quantum addresses and migrate old P2PK coins.
Source: Bit2Me News